Abrégé

A protective material layer, a battery, an energy storage apparatus, and an electric device. The protective material layer is suitable for being provided on the surface of the shell of a battery, and the protective material layer is made of an insulating material, the surface resistivity of which is greater than or equal to 1015Ω. In an infrared spectrum of the protective material layer that is measured by means of Fourier transform infrared spectroscopy, the relative intensity ratio I of the strongest peak at a 1072±3 cm-1wavelength to the strongest peak at a 1724±3 cm-1 wavelength is 1.3-1.9. The protective material layer has good heat conduction capability, insulating flame-retardant capability, thermal stability and adhesion capability, and thus can be reliably coated on the surface of a shell, thereby preventing a safety accident caused by thermal runaway of a battery.

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation
• H01M 50/124 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par le matériau ayant une structure en couches

Abrégé

The present disclosure provides an electrolyte and an energy storage device. The electrolyte includes, by mass of electrolyte, a fluorinated solvent with a mass percentage a, a cyclic carbonate with a mass percentage b, and a lithium hexafluorophosphate with a mass percentage c, wherein 1%≤a≤30%, 25%≤b≤45%, and 7%≤c≤10%.

Classes IPC  ?

• H01M 10/0569 - Matériaux liquides caracterisés par les solvants
• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
• H01M 10/0568 - Matériaux liquides caracterisés par les solutés

Produits et services

computer software applications, downloadable; Downloadable software applications for mobile phones; computer programs, downloadable; monitors [computer programs]; Computer programs [downloadable software]; Radios; electronic monitoring instruments, other than for medical use; materials for electricity mains [wires, cables]; Ultracapacitors for energy storage; Electrodes; inverters [electricity]; condensers [capacitors]; conductors, electric; Distribution boxes for electrical power; integrated circuits; Transducers; graphite electrodes; electric control devices for energy management; Electric batteries for powering electric vehicles; accumulators, electric; power packs [batteries]; plates for batteries; battery chargers; Rechargeable batteries; batteries, electric, for vehicles; solar batteries; Photovoltaic apparatus and installations for generating solar electricity; batteries, electric; Anodes; charging stations for electric vehicles; battery jars; battery cases; Cathodes; Lithium ion batteries; Chargers; Portable power supplies (rechargeable batteries); battery boxes; photovoltaic cells; lithium batteries; Photovoltaic apparatus for generating electricity.

Abrégé

The present application provides an energy storage device and an electric apparatus, which can ensure that an electrode assembly of the energy storage device is entirely soaked in an electrolyte, thus avoiding the influence on the performance of the electrode assembly, and facilitating the prolonging of the service life of the energy storage device. The energy storage device comprises an electrode assembly and a casing assembly, wherein the casing assembly comprises a casing and a recirculating electrolyte-replenishment pipeline, the recirculating electrolyte-replenishment pipeline and the electrode assembly both being mounted inside the casing, and the recirculating electrolyte-replenishment pipeline being located between the electrode assembly and the casing. The recirculating electrolyte-replenishment pipeline comprises an electrolyte intake pipe and an electrolyte output pipe, wherein the electrolyte intake pipe is located on one side of the electrode assembly and is in communication with the interior of the casing; the electrolyte output pipe is fixedly mounted onto the electrolyte intake pipe and is in communication with the electrolyte intake pipe; and the electrolyte output pipe is provided with a plurality of electrolyte outlet holes, the plurality of electrolyte outlet holes being sequentially distributed at intervals, each electrolyte outlet hole extending through one side pipe wall of the electrolyte output pipe in the direction of thickness of the electrolyte output pipe, and the opening of each electrolyte outlet hole facing the electrode assembly of the energy storage device.

Classes IPC  ?

• H01M 50/682 - Récipients pour stockage de liquides; Conduits de refoulement à cet effet logés dans les boîtiers de la batterie ou de la cellule

Abrégé

Provided in the present application are a cell winding method and a cell winding system. The cell winding method comprises: material incoming, winding starting, embossing, and winding, wherein material incoming is used for acquiring a separator, a cathode electrode sheet and an anode electrode sheet, and the cathode electrode sheet obtained from material incoming satisfies: after pre-winding is completed, a first cathode tab and a second cathode tab, which are arranged adjacent to each other, at the position of the cathode sheet that is close to a winding end form a surplus misalignment; winding starting is used for fixing starting ends of the separator, the cathode electrode sheet and the anode electrode sheet to a winding apparatus; embossing is used for embossing the cathode electrode sheet by means of a rolling apparatus, such that the cathode electrode sheet subjected to an embossing treatment satisfies: after winding is completed, the first cathode tab is aligned with the second cathode tab; and winding is used for winding the separator, the cathode electrode sheet and the anode electrode sheet by means of the winding apparatus.

Classes IPC  ?

• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
• H01M 10/04 - Structure ou fabrication en général

Abrégé

Disclosed in the present disclosure are an electrode sheet, a battery, an electrical device and an electrode sheet manufacturing method. The electrode sheet comprises an electrode sheet body and a tab located at at least one end in the width direction of the electrode sheet body. The tab comprises a first edge, a second edge and a third edge which are successively connected, the end of the first edge away from the second edge being connected to the electrode sheet body, and the end of the third edge away from the second edge being connected to the electrode sheet body. The third edge comprises a first arc section and a second arc section, and a sharp corner is formed at a joint position between the first arc section and the second arc section.

Classes IPC  ?

• H01M 4/13 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication
• H01M 4/139 - Procédés de fabrication
• H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
• B23K 26/38 - Enlèvement de matière par perçage ou découpage

Abrégé

An end cover assembly (10), comprising: a top cover unit (100); poles (400) which pass through the top cover unit (100) and each comprise a base portion (410) and a connecting portion (420), wherein the connecting portion (420) protrudes from the end surface of the base portion (410) along the axial direction of the base portion (410), and the portion of the end surface of the base portion (410) located outside the coverage of the connecting portion (420) forms a stepped surface (411) surrounding the connecting portion (420); an upper plastic (200) at least partially sleeved on the outer peripheral side of the base portion (410), wherein a portion of the upper plastic (200) is located on one side of the top cover unit (100) in the thickness direction; and a fixing member (300), wherein a portion of the fixing member (300) is located on the other side of the top cover unit (100) in the thickness direction, a seam (310) surrounding the connecting portion (420) is formed between the fixing member (300) and the connecting portion (420), and the stepped surface (411) abuts against the fixing member (300) and covers the seam (310).

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/566 - Bornes caractérisées par leur procédé de fabrication par soudage, brasage ou brasage tendre

Abrégé

Disclosed in the present application are a heat dissipation member, an energy storage device and an electric apparatus. The heat dissipation member comprises a first heat dissipation portion and at least one second heat dissipation portion, wherein the first heat dissipation portion and the second heat dissipation portion are connected, and a transition section is formed; a liquid intake channel and a liquid output channel of the heat dissipation member are located inside the first heat dissipation portion and the second heat dissipation portion and pass through the transition section; two harmonica-shaped tubes are provided inside the transition section and have flow channel cavities, which are respectively in communication with the liquid intake channel and the liquid output channel; a first wall and a second wall of each harmonica-shaped tube are provided opposite each other; a third wall and a fourth wall of each harmonica-shaped tube are provided opposite each other; the first heat dissipation portion comprises a first heat dissipation plate and a second heat dissipation plate, which are arranged opposite each other; the second heat dissipation portion comprises a third heat dissipation plate and a fourth heat dissipation plate, which are arranged opposite each other; the first heat dissipation plate is connected to the third heat dissipation plate; and the second heat dissipation plate is connected to the fourth heat dissipation plate. The heat dissipation member in the present application can improve the structural strength of a corresponding transition section of the heat dissipation member.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

An electrolyte and an energy storage device. The electrolyte comprises, in terms of the mass of the electrolyte: a fluorinated solvent having a mass percentage content of a; a cyclic carbonate having a mass percentage content of b; and lithium hexafluorophosphate having a mass percentage content of c, wherein 1%≤a≤30%, 25%≤b≤45%, and 7%≤c≤10%. An energy storage device prepared from the electrolyte can be ensured to have relatively good overcharge safety performance while having relatively large single-cell capacity.

Classes IPC  ?

• H01M 10/0569 - Matériaux liquides caracterisés par les solvants
• H01M 10/0568 - Matériaux liquides caracterisés par les solutés
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium

Abrégé

A battery pack (10) and an electric system. The battery pack (10) comprises: a plurality of battery cells (110) arranged in the thickness direction of the battery cells (110); limiting members (200) abutting against the end portions of a battery module (100) in the thickness direction of the battery cells (110), first slots (222) extending in the thickness direction of the battery cells (110) being formed in each limiting member; and a first tightening strap (300) cooperating with the first slots (222), the first tightening strap (300) surrounding the battery module (100) and being sleeved on the limiting members (200) in the height direction of the battery cells (110).

Classes IPC  ?

• H01M 50/264 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports avec des moyens de fixation, p.ex. des serrures pour des cellules ou des batteries, p.ex. cadres périphériques, courroies ou tiges
• H01M 50/291 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
• H01M 50/244 - Boîtiers secondaires; Bâtis; Dispositifs de suspension; Dispositifs de manutention; Supports caractérisés par leur procédé de montage

Abrégé

An end cover assembly (16), a battery cell (100), a battery pack, and an energy storage device. The end cover assembly (16) comprises a cover plate (22) and an insulating member (24), the insulating member (24) being located on one side of the cover plate (22), and the cover plate (22) being provided with a liquid injection hole (26); the insulating member (24) is provided with a flow channel, the flow channel being in communication with the liquid injection hole (26), and an outlet of the flow channel being located at a side edge of the insulating member (24).

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/627 - Ouvertures de remplissage
• H01M 50/673 - Récipients pour stockage de liquides; Conduits de refoulement à cet effet

Abrégé

DGG, and a ratio of the particle size distribution A to the defect degree B of the negative electrode active material is: 6.0≤A/B≤7.2. The ratio of the particle size distribution A to the defect degree B of the negative electrode active material is controlled within the range, so that the cycle performance and the storage performance of the battery are significantly improved.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/587 - Matériau carboné, p.ex. composés au graphite d'intercalation ou CFx pour insérer ou intercaler des métaux légers
• H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 4/13 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication

Abrégé

Provided is an energy storage device, comprising: an electrical module (100), the electrical module (100) comprising an electrical cabinet (110), and an accommodating cavity (111) being formed in the electrical cabinet (110); two battery modules (200), the electrical module (100) being sandwiched between the two battery modules (200), and the two battery modules (200) respectively covering two ends of the accommodating cavity (111); and a first sealing member (300), wherein the first sealing member (300) surrounds the accommodating cavity (111), and the first sealing member (300) is pressed between the battery modules (200) and the electrical module (100) so as to seal the accommodating cavity (111). The battery modules (200) can serve as cabinet doors for sealing the accommodating cavity (111) of the electrical module (100), so that the sealing structure of the energy storage device is simplified, reducing the manufacturing cost of the energy storage device after being subjected to sealing treatment.

Classes IPC  ?

• H01M 50/24 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p.ex. dimensions adaptés pour protéger les batteries de leur environnement, p.ex. de la corrosion
• H01M 50/258 - Batteries modulaires; Boîtiers pourvus de moyens d’assemblage

Abrégé

A negative electrode sheet, a screening method therefor, a battery, and an electrical device. The negative electrode sheet (100) comprises a current collector (20) and a negative electrode active material layer (10) arranged on the current collector (20); the negative electrode active material layer (10) contains therein negative electrode active particles (11), the negative electrode active particles (11) satisfying the relational expression: 0.7≤R50/Dv50≤0.95, where R50 is the equivalent spherical particle size of the negative electrode active particles (11), and Dv 50 is the corresponding particle size when the cumulative particle size distribution percentage in a particle size distribution measurement by means of a laser scattering method reaches 50%.

Classes IPC  ?

• H01M 4/13 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication
• H01M 4/66 - Emploi de matériaux spécifiés
• H01M 4/70 - Supports ou collecteurs caractérisés par la forme ou la configuration

Abrégé

Disclosed in the present application are an energy storage apparatus, an energy storage module and an electrical device. The energy storage apparatus comprises an end cover assembly, an electrode assembly, a partition member, a protection member and a housing, the partition member being provided with a through groove and through holes, the through groove and the through holes penetrating through the partition member in the thickness direction of the partition member, and the through groove and the through holes being arranged at intervals; the protection member is provided with a first containing cavity, the electrode assembly penetrates through the through groove, and the electrode assembly is in sealed connection with the groove wall of the through groove; the partition member is in sealed connection with the cavity wall of the first containing cavity and divides the first containing cavity into a first sub-containing cavity and a second sub-containing cavity, and the through holes communicate with the first sub-containing cavity and the second sub-containing cavity; the housing is provided with a second opening, the protection member is contained in the housing through the second opening, the end cover assembly is installed on the second opening and seals the second opening, and an electrolyte of the energy storage apparatus is contained in the housing and the first containing cavity; an air pressure difference can be generated between the first sub-containing cavity and the second sub-containing cavity, such that the electrolyte in the first sub-containing cavity flows to the second sub-containing cavity through the through holes.

Classes IPC  ?

• H01M 50/474 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p.ex. piles hybrides Éléments d’espacement dans les cellules Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmes; Leurs procédés de fabrication caractérisés par leur position dans les cellules

Abrégé

A cell structure (100), comprising: an anode plate (110), a diaphragm (120) and a cathode plate (130), which are arranged in a winding manner, wherein the cell structure (100) has a pre-wound structure (102) at the center, and the pre-wound structure (102) is formed by the anode plate (110) and the diaphragm (120) pre-winding a preset length that is 3 mm to 200 mm; an adhesive tape (140) is attached to the head of the anode plate (110); and the head of the cathode plate (130) is arranged corresponding to the position of the diaphragm (120) of the pre-wound structure (102) after being wound the preset length.

Classes IPC  ?

• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
• H01M 10/052 - Accumulateurs au lithium
• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie

Abrégé

The present disclosure relates to a battery pack and an electric system. The battery pack includes: a battery module including a plurality of battery cells arranged in a thickness direction of each of the plurality of battery cells; a limit member abutting against an end of the battery module located in the thickness direction of the battery cell, the limit member having a first recess extending in the thickness direction of the battery cell; and a first binding strip surrounding the battery module and sleeved around the limit member in a height direction of each of the plurality of battery cells. The first binding strip is engaged in the first recess.

Classes IPC  ?

• H01M 50/264 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports avec des moyens de fixation, p.ex. des serrures pour des cellules ou des batteries, p.ex. cadres périphériques, courroies ou tiges
• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires

Abrégé

A battery pack (100) and an energy storage device (200). The battery pack (100) comprises: a box body (12), which comprises an upper box cover (16) and a liquid cooling plate (18), the upper box cover (16) being provided with an accommodating cavity (20) therein, the bottom of the upper box cover (16) being provided with an opening (22) which is in communication with an accommodating cavity (20), the liquid cooling plate (18) being connected to the bottom of the upper box cover (16) in a sealing manner and closing the opening (22), and the upper box cover (16) being an insulating member; and a battery cell (14), which is located in the accommodating cavity (20) and carried by the liquid cooling plate (18), and which is connected to the liquid cooling plate (18) in a heat conducting manner.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/6554 - Barres ou plaques
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
• H01M 10/6556 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur
• H01M 50/273 - Couvercles des boîtiers secondaires, des bâtis ou des blocs caractérisés par le matériau
• H01M 50/24 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p.ex. dimensions adaptés pour protéger les batteries de leur environnement, p.ex. de la corrosion
• H01M 50/244 - Boîtiers secondaires; Bâtis; Dispositifs de suspension; Dispositifs de manutention; Supports caractérisés par leur procédé de montage
• H01M 50/591 - Couvercles
• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation
• H01M 50/588 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries à l’extérieur des batteries, p.ex. les contacts incorrects des bornes ou des barres omnibus
• A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p.ex. chemins de câbles

Abrégé

The present application relates to a battery module, a battery cell, and a top cover assembly (100) and a processing method therefor. The top cover assembly comprises a top cover plate (10); a terminal post (20), which is mounted on the top cover plate (10); upper plastic (30), which is sleeved on the outside of the terminal post (20) and is connected to the top cover plate (10); and a first dense coating (40) and a second dense coating (50), wherein the first dense coating (40) is arranged at a joint of the terminal post (20) and the upper plastic (130) in a sealing manner, and the second dense coating (50) is arranged at a joint of the upper plastic (30) and the top cover plate (10) in a sealing manner.

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/148 - Couvercles caractérisés par leur forme
• H01M 50/155 - Couvercles caractérisés par le matériau

Abrégé

Provided are a liquid cooling plate and a battery module. The liquid cooling plate has a first liquid cooling portion and a second liquid cooling portion that are perpendicular to each other. The first liquid cooling portion is located at a middle position of the second liquid cooling portion in a first direction. The liquid cooling plate includes: a first plate body having a one-piece structure and including the first liquid cooling portion and a cover body portion of the second liquid cooling portion, the first plate body having a first flow channel of the first liquid cooling portion; and a second plate body having a one-piece structure and fixedly connected to the cover body portion, a second flow channel of the second liquid cooling portion being defined between the second plate body and the cover body portion. The first flow channel is in communication with the second flow channel.

Classes IPC  ?

• H01M 10/6555 - Barres ou plaques disposées entre les éléments
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/6557 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur disposés entre les éléments
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments

Abrégé

A liquid cooling plate (100) and a battery module. The liquid cooling plate comprises a first liquid cooling portion (10) and a second liquid cooling portion (20) which are perpendicular to each other, the first liquid cooling portion (10) being located at the middle position of the second liquid cooling portion (20). A first plate body (110) comprises the first liquid cooling portion (10), which is provided with a first flow channel (30), and a cover body portion (105) of the second liquid cooling portion (20); and a second plate body (120) is connected to the cover body portion (105) and a second flow channel (40) is formed therebetween, the first flow channel (30) being in communication with the second flow channel (40).

Classes IPC  ?

• H01M 10/6557 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur disposés entre les éléments
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/647 - Chauffage ou refroidissement; Commande de la température caractérisé par la forme des éléments Éléments prismatiques ou plans, p.ex. éléments de type poche
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
• H01M 10/6567 - Liquides

Abrégé

This disclosure provides an energy storage device, a welding method for an energy storage device, and an electricity-consumption device. The energy storage device includes an end cap, a housing, and a current collector arranged between the end cap and the housing. The current collector includes a main body and a welding portion, and the main body and the welding portion are integrally formed. The main body has a first surface and a second surface facing away from the first surface. The end cap is connected to the first surface of the main body, the housing is connected to the second surface of the main body, and the welding portion is connected to an outer peripheral side surface of the end cap, an outer peripheral side surface of the housing, and an outer peripheral side surface of the main body.

Classes IPC  ?

• H01M 50/00 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p.ex. piles hybrides
• B23K 26/21 - Assemblage par soudage
• H01M 10/04 - Structure ou fabrication en général
• H01M 50/107 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique ayant une section transversale courbe, p.ex. ronde ou elliptique
• H01M 50/152 - Couvercles caractérisés par leur forme pour des cellules ayant une section transversale courbée, p.ex. ronde ou elliptique
• H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
• H01M 50/536 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le procédé de fixation des conducteurs aux électrodes, p.ex. soudage
• H01M 50/627 - Ouvertures de remplissage

Abrégé

A connection structure, a battery module, an energy storage device and an electric apparatus. The connection structure comprises: a connection assembly, which comprises a first connector and a second connector, wherein the first connector comprises a first bending part, a first connection part and a second connection part, and the first connection part, the first bending part and the second connection part form an insertion slot by means of enclosure; the second connector is mounted in the insertion slot and elastically abuts against the first connection part and the second connection part; and the second connector comprises a bridging part, a first plate body and a second plate body, the bridging part, the first plate body and the second plate body form an accommodating cavity by means of enclosure, each of the first plate body and the second plate body is provided with an elastic part, the elastic part is provided with a first sub-section, and a first gap is formed between the first sub-section provided on the first plate body and the first sub-section provided on the second plate body; and an electrically conductive member, which is mounted in the accommodating cavity, wherein a first width of the first gap is smaller than a first thickness of the electrically conductive member, and opposite faces of the electrically conductive member respectively elastically abut against the first sub-section of the first plate body and the first sub-section of the second plate body.

Classes IPC  ?

• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
• H01M 50/516 - Procédés pour interconnecter les batteries ou cellules adjacentes par soudage, brasage ou brasage tendre

Abrégé

The present application provides an energy storage device, an electric system and an energy storage system. The energy storage device comprises: a plurality of energy storage units, wherein the plurality of energy storage units are sequentially arranged in a first direction, and each energy storage unit comprises an explosion-proof valve; an isolation plate, wherein the isolation plate is located on the side of the plurality of energy storage units where the explosion-proof valves are arranged, and extends in the first direction, the isolation plate is provided with a plurality of air holes arranged at intervals in the first direction, each air hole is at least partially stacked with one explosion-proof valve, and different explosion-proof valves are stacked with different air holes; and a first heat-insulating piece and a second heat-insulating piece, wherein the first heat-insulating piece and the second heat-insulating piece are located on the same side of the isolation plate that faces away from the plurality of energy storage units, and the first heat-insulating piece and the second heat-insulating piece are arranged on two opposite sides of each explosion-proof valve and are spaced apart in a second direction, a drainage channel is enclosed by the first heat-insulating piece, the second heat-insulating piece and the isolation plate, and opposite ends of the drainage channel are both in communication with the external environment and are in communication with the space of the explosion-proof valves facing the isolation plate, the first direction intersecting with the second direction.

Classes IPC  ?

• H01M 50/342 - Aménagements non refermables

Abrégé

The present application relates to a liquid cooling device (100), a battery module, and an energy storage system. The liquid cooling device (100) comprises a first liquid cooling pipe group (10a), a second liquid cooling pipe group (10b) and a connecting pipe (20); one end of the connecting pipe (20) is connected to one end of the first liquid cooling pipe group (10a), and the other end of the connecting pipe (20) is connected to one end of the second liquid cooling pipe group (10b); the opposite side surfaces of the first liquid cooling pipe group (10a) and the second liquid cooling pipe group (10b) are respectively set as a first contact side and a second contact side; and a plane where the first contact side is located is parallel to or intersects with a plane where the second contact side is located.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/6556 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments

Abrégé

Disclosed in the present application are a lower plastic structure, an end cover assembly, an energy storage device and an electric apparatus. The lower plastic structure comprises a lower plastic member and a flow guide member, wherein the lower plastic member is provided with a first surface and a second surface facing away from the first surface, and the lower plastic member is provided with a first liquid injection hole, which penetrates the first surface and the second surface; and the flow guide member comprises a connecting component which is connected to the first surface and an elastic flow guide component which is connected to the connecting component, a projection of the elastic flow guide component on the first surface at least covering part of the first liquid injection hole, and the elastic flow guide component being provided with a third surface facing the first surface and a fourth surface facing away from the third surface, the third surface being arranged facing the first surface in a protruding manner, such that the third surface is configured to guide an electrolyte, which is injected via the first liquid injection hole, and the fourth surface being recessed towards the third surface so as to form a recessed portion. By means of the lower plastic structure, the end cover assembly, the energy storage device and the electric apparatus, which are disclosed in the present application, the time for infiltrating a bare cell with the electrolyte can be effectively shortened, such that the infiltration efficiency of the bare cell is improved.

Classes IPC  ?

• H01M 50/627 - Ouvertures de remplissage

Abrégé

A lower plastic structure, an end cover assembly, an energy storage device and electrical equipment are provided. The lower plastic structure includes a lower plastic part and a flow guide. The lower plastic part has a first surface and a second surface facing away from the first surface. The lower plastic part has a first liquid injection hole. The flow guide includes a connection component connected to the first surface and an elastic flow guide component connected to the connection component. A projection of the elastic flow guide component on the first surface at least covers part of the first liquid injection hole. The elastic flow guide component has a third surface facing toward the first surface and a fourth surface facing away from the third surface. The third surface protrudes toward the first surface, and the fourth surface is recessed toward the third surface.

Classes IPC  ?

• H01M 50/627 - Ouvertures de remplissage
• H01M 50/147 - Couvercles

Abrégé

Provided in the present application are an energy storage apparatus, a welding method therefor, and an electrical device. The energy storage apparatus comprises an end cover, a casing and a current collector disc arranged between the end cover and the casing. The current collector disc comprises a body and a welding part, the body and the welding part being an integrated structure. The body comprises a first surface and a second surface that are arranged opposite to each other, the end cover being connected to the first surface of the body, and the casing being connected to the second surface of the body. The welding part is connected to the outer circumferential surfaces of the end cover, the casing and the body. In the energy storage apparatus of the present application, the current collector disc is arranged between the end cover and the casing and is welded to the circumferential surfaces of the end cover and the casing, such that a welding area for the end cover and the current collector disc is enlarged, thereby improving the current flowing capacity between the end cover and the current collector disc and improving the connection strength between the end cover, the current collector disc and the casing.

Classes IPC  ?

• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie
• H01M 50/536 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le procédé de fixation des conducteurs aux électrodes, p.ex. soudage

Abrégé

A positive electrode sheet and a preparation method therefor, an energy storage apparatus, and an electric device. The positive electrode sheet comprises a current collector, a positive electrode active material layer, and a first additive, the positive electrode active material layer is arranged on at least one side of the current collector, and the first additive comprises sodium monofluorophosphate and/or sodium difluorophosphate.

Classes IPC  ?

• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
• H01M 4/13 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication
• H01M 4/139 - Procédés de fabrication
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p.ex. au magnésium ou à l'aluminium

Abrégé

The present application discloses a pole assembly, an end cover assembly, an energy storage apparatus, and an electric device. The pole assembly comprises a pole, a first insulating member, and a bottom plate. The first insulating member is provided with a positioning hole, and the positioning hole traverses the first insulating member in the thickness direction of the first insulating member. The bottom plate is located on one side of the first insulating member in the thickness direction, the bottom plate is provided with a fixing hole, and the fixing hole traverses the bottom plate in the thickness direction of the bottom plate and is in communication with the positioning hole. The pole comprises a column body portion and a flange portion, the flange portion is connected to one end of the column body portion, and a peripheral surface of the flange portion protrudes relative to a peripheral surface of the column body portion. The column body portion penetrates the positioning hole and the fixing hole, and the end, away from the flange portion, of the column body portion is fixedly connected to the bottom plate.

Classes IPC  ?

• H01M 50/553 - Bornes spécialement adaptées aux cellules prismatiques, de type poche ou rectangulaires

Abrégé

Disclosed in the present disclosure are a positive electrode sheet, a lithium-ion battery and an energy storage device. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer is arranged on at least part of the surface of the positive electrode current collector and comprises a positive electrode active material, and the positive electrode active material is doped with a metal element M; and in the thickness direction away from the positive electrode current collector, the doping amount of the metal element M of the positive electrode active material in the positive electrode active material layer sequentially decreases, and the ratio of the doping amount of the metal element M of the positive electrode active material in the positive electrode active material layer at a location closest to the positive electrode current collector to the doping amount of the metal element M of the positive electrode active material in the positive electrode active material layer at a location farthest from the positive electrode current collector is less than or equal to 8.

Classes IPC  ?

• H01M 4/13 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication
• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges

Abrégé

Provided are a battery module and an energy storage device. The battery module comprises: at least two battery cells (10), wherein the battery cells (10) are provided with top covers (11); at least one busbar (20), the busbar (20) being arranged above the top cover (11), and the busbar (20) being electrically connected to the poles (12) provided on the two adjacent top covers (11); and a liquid cooling pipe (30), wherein the liquid cooling pipe (30) is arranged on all the top covers (11) and is in heat transfer fit with all the busbars (20). Therefore, the high-temperature heat of the busbar (20) can be quickly absorbed and taken away by a cooling medium, thereby achieving the effect of cooling the busbar (20) by the liquid cooling pipe (30), and improving the overcurrent capability of the busbar (20); the problem of excessively high heat of the busbar (20) in a high overcurrent scene is well solved, and excessive installation space is not occupied, so that the problems of high processing costs and high difficulty are avoided.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/6567 - Liquides
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
• H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p.ex. modules de barres omnibus
• H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules

Abrégé

Disclosed are a multilayer composite electrode sheet, an energy storage apparatus and a preparation method. A positive current collector, a first lithium manganese iron phosphate layer, a second lithium manganese iron phosphate layer, a third lithium manganese iron phosphate layer are sequentially formed. One end of a first conductive fiber is inserted obliquely into the surface of the first lithium manganese iron phosphate layer on the one side and the other end is inserted obliquely into a surface of the second lithium manganese iron phosphate layer on one side. One end of a second conductive fiber is inserted obliquely into the surface of the second lithium manganese iron phosphate layer facing away from the positive current collector and the other end is inserted obliquely into a surface of the third lithium manganese iron phosphate layer facing toward the positive current collector.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/04 - Procédés de fabrication en général
• H01M 4/136 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges

Abrégé

An end cover assembly (100), comprising a cover plate (12), and a first electrode terminal (16), a second electrode terminal (17), a first boss (18), a second boss (20), and a third boss (21) which are spaced apart from each other on the cover plate (12), wherein in the length direction of the cover plate (12), the second boss (20) and the third boss (21) are respectively arranged on two sides of the first boss (18).

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
• H01M 50/176 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules prismatiques ou rectangulaires
• H01M 50/258 - Batteries modulaires; Boîtiers pourvus de moyens d’assemblage
• H01M 50/251 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports spécialement adaptés aux dispositifs fixes, p.ex. production d’énergie tampon ou production d’énergie de secours
• H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie

Abrégé

A composite positive electrode sheet having high compaction density, and a preparation method and an energy storage device. The composite positive electrode sheet comprises a current collector, a coating layer and a plurality of inserts. The composite positive electrode sheet has high compaction density, and the energy storage device prepared from the composite positive electrode sheet has excellent electrochemical properties.

Classes IPC  ?

• H01M 4/136 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 4/04 - Procédés de fabrication en général
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium

Abrégé

A gas-phase harmful substance treatment member (40) and a preparation method, an energy storage apparatus (100), and an electric device. The treatment member (40) comprises: a first particle layer (41), including particles containing a metal or an alloy; a second particle layer (42), wrapping the first particle layer (41) and including carbon-based particles; and an air-permeable cushion (43), located on both sides of the second particle layer (42) in a thickness direction. The preparation method comprises: step I, providing a cylindrical first mold (300); step II, manufacturing a first air-permeable cushion (43); step III, filling carbon-based particles in a cavity (310) of the first mold; step IV, providing a cylindrical second mold (400); step V, filling the second mold with particles containing a metal or an alloy along the opening of a cavity (410) of the second mold; step VI, removing the second mold (400), and continuing to fill the inside of the cavity (310) of the first mold with the carbon-based particles along the opening of the cavity (310) of the first mold; step VII, manufacturing a second air-permeable cushion (43); and step VIII, removing the first mold (300) to obtain a treatment component (40) having a sandwich structure. The energy storage apparatus (100) comprises: a housing (10), an electrode assembly (20), a top cover (30) and the gas-phase harmful substance treatment member (40). The electric device comprises the energy storage apparatus (100).

Classes IPC  ?

• B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
• B01D 53/26 - Séchage des gaz ou vapeurs
• B01D 53/62 - Oxydes de carbone
• B01D 53/82 - Procédés en phase solide avec des réactifs à l'état stationnaire
• B01D 53/68 - Halogènes ou composés halogénés
• B01D 53/46 - Elimination des composants de structure définie
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 10/052 - Accumulateurs au lithium
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p.ex. au magnésium ou à l'aluminium

Abrégé

An energy storage device and an electric apparatus. The energy storage device comprises: a housing, which comprises an accommodating cavity having an opening; an electrode assembly, which is accommodated in the accommodating cavity and forms a gas passage gap with an inner wall of the housing; a battery top cover, which comprises a cover plate and an insulating member, the insulating member being located between an open end of the accommodating cavity and the cover plate and being provided with a protrusion directly facing the gas passage gap, and the protrusion being provided with a limiting hole; and a gas absorption structure, which is columnar, wherein a first end of the gas absorption structure is provided with a limiting structure and is limited in the limiting hole; a second end of the gas absorption structure is located in the gas passage gap; the gas absorption structure is further provided with a cavity and a gas passage channel; the gas passage channel communicates the cavity with the accommodating cavity; and the cavity is filled with a getter.

Classes IPC  ?

• H01M 10/52 - Enlèvement des gaz situés à l'intérieur de l'élément secondaire, p.ex. par absorption
• B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
• B01D 53/82 - Procédés en phase solide avec des réactifs à l'état stationnaire
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires

Abrégé

An energy storage device (100), comprising: a housing (10), which comprises an accommodating cavity (11) having an opening (12); an electrode assembly (20), which is accommodated in the accommodating cavity (11) and is provided with a through hole (21) penetrating in the depth direction of the accommodating cavity (11); a gas absorption structure (30), which is a columnar structure, wherein the gas absorption structure (30) is located in the through hole (21) and, with a hole wall of the through hole (21), forms a gas passing gap (22), the gas absorption structure (30) having a cavity (31) and at least one first gas passing hole (32) which is located in a side wall of the gas absorption structure (30), the first gas passing hole (32) communicating the cavity (31) with the gas passing gap (22), and the cavity (31) being filled with a getter used for absorbing gas; and an end cover (40), which is used for covering and sealing the opening (12) of the accommodating cavity (11). The present energy storage device (100) alleviates the problem of expansion occurring due to the production of gas, alleviates the problem of the deterioration of cycle life and rate capability, and also improves the safety performance.

Classes IPC  ?

• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes

Abrégé

A multilayer composite electrode sheet, an energy storage device and a preparation method. A first lithium manganese iron phosphate layer of the multilayer composite electrode sheet is stacked on a positive current collector; a second lithium manganese iron phosphate layer is stacked on a surface of the side of the first lithium manganese iron phosphate layer facing away from the positive current collector; a third lithium manganese iron phosphate layer is stacked on a surface of the side of the second lithium manganese iron phosphate layer facing away from the positive current collector; one end of each first electrically conductive fiber is obliquely inserted into a surface of one side of the first lithium manganese iron phosphate layer, and the other end thereof is obliquely inserted into a surface of one side of the second lithium manganese iron phosphate layer; one end of each second electrically conductive fiber is obliquely inserted into the surface of the side of the second lithium iron manganese phosphate layer facing away from the positive current collector, and the other end thereof is obliquely inserted into a surface of the side of the third lithium manganese iron phosphate layer facing the positive current collector; the first electrically conductive fibers extend in a direction that forms a first acute angle R1 with a first direction; and the second electrically conductive fibers extend in a direction that forms a second acute angle R2 with the first direction. The internal resistance of the multilayer composite electrode sheet can be reduced.

Classes IPC  ?

• H01M 4/136 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/04 - Procédés de fabrication en général
• H01M 10/052 - Accumulateurs au lithium
• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés

Abrégé

A negative electrode sheet includes a negative-electrode current collector and a negative-electrode material layer disposed on the negative-electrode current collector. The negative-electrode material layer includes a first active material that includes a first particle cluster and a second particle cluster. A compaction density of the first particle cluster after being compressed at a pressure of 5 tons is P1, and a compaction density of the second particle cluster after being compressed at a pressure of 5 tons is P2, where P1 and P2 satisfy: 1.0≤P1/P2≤1.5. When a volume percentage in the first particle cluster reaches 50%, a corresponding particle size value Dv50 satisfies: 13 μm≤Dv50≤20 μm, and when a volume percentage in the second particle cluster reaches 50%, a corresponding particle size value Dv50′ satisfies: 5 μm≤Dv50′≤12 μm.

Classes IPC  ?

• H01M 4/583 - Matériau carboné, p.ex. composés au graphite d'intercalation ou CFx
• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif

Abrégé

The present application relates to a composite positive electrode sheet with a high compacted density, and a method for preparing the same, and an energy storage device. The composite positive electrode sheet of the present application comprises a current collector, a coating layer and a plurality of inserts.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/04 - Procédés de fabrication en général
• H01M 4/131 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p.ex. LiCoOx
• H01M 4/1391 - Procédés de fabrication d'électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p.ex. LiCoOx
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates

Abrégé

Provided are a negative electrode sheet (100), a battery (200), a battery pack (300) and an electric device (400). The negative electrode sheet (100) comprises a negative-electrode current collector (110) and a negative-electrode material layer (120), wherein the negative-electrode material layer (120) is arranged on the surface of the negative-electrode current collector (110), and the negative-electrode material layer (120) comprises a first active material, which contains a first particle swarm and a second particle swarm. The compaction density of the first particle swarm after being compacted under 5-ton pressure is P1, the compaction density of the second particle swarm after being compacted under 5-ton pressure pressure is P2, and P1 and P2 satisfy the relational expression 1.0≤P1/P2≤1.5, wherein when the volume percentage in the first particle swarm reaches 50%, a corresponding particle size value Dv50 satisfies the relational expression 13 μm≤Dv50≤20 μm, and when the volume percentage in the second particle swarm reaches 50%, a corresponding particle size value Dv50' satisfies the relational expression 5 μm≤Dv50'≤12 μm. When the negative electrode sheet (100) is applied to the battery (200), the battery (200) has a high energy density and a good cycling performance.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs

Abrégé

An end cap assembly (100), an energy storage apparatus and an electric device. The end cap assembly (100) comprises a cover plate (12), a terminal post (14), an insulating member and an anti-loosening structure (18). A first through hole (20) is formed in the cover plate (12); the terminal post (14) comprises a post body (24), the post body (24) penetrating the first through hole (20), and an outer peripheral surface of the post body (24) being provided with a first thread (26); the insulating member is arranged on the cover plate (12), and in the insulating member a second through hole (28) is formed, a wall of the second through hole (28) being provided with a second thread (30), the post body (14) penetrating the second through hole (28), and the first thread (26) being in connection with the second thread (30); and the anti-loosening structure (18) comprises a first anti-loosening portion (32) and a second anti-loosening portion (34), the first anti-loosening portion (32) being connected to the second anti-loosening portion (34) in a matching manner, so as to prevent the insulating member from loosening.

Classes IPC  ?

• H01M 50/176 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules prismatiques ou rectangulaires
• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/553 - Bornes spécialement adaptées aux cellules prismatiques, de type poche ou rectangulaires

Abrégé

An energy storage apparatus (1). The energy storage apparatus comprises a housing (100), an electrode assembly (300), an end cover assembly (500), and a current collecting member (700); the housing comprises an accommodating cavity (110) provided with an opening (101); the end cover assembly comprises an end cover plate (510) and an explosion-proof valve (520); the end cover plate is provided with a first surface (511) facing the electrode assembly and a second surface (512) provided facing away from the first surface; the end cover plate is further provided with an air release hole (513) penetrating through the first surface and the second surface, and the explosion-proof valve seals the air release hole; the current collecting member comprises an end cover connecting portion (710) and tab connecting portions (720) connected to the end cover connecting portion, the end cover connecting portion is electrically connected to the end cover plate, and the tab connecting portions are electrically connected to the electrode assembly; in the height direction of the housing, each tab connecting portion has a first projection (S1) on the first surface, the explosion-proof valve has a second projection (S2) on the first surface, and the first projection does not overlap the second projection.

Classes IPC  ?

• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie
• H01M 50/342 - Aménagements non refermables
• H01M 50/152 - Couvercles caractérisés par leur forme pour des cellules ayant une section transversale courbée, p.ex. ronde ou elliptique
• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
• H01M 50/474 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p.ex. piles hybrides Éléments d’espacement dans les cellules Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmes; Leurs procédés de fabrication caractérisés par leur position dans les cellules
• H01M 50/477 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p.ex. piles hybrides Éléments d’espacement dans les cellules Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmes; Leurs procédés de fabrication caractérisés par leur forme
• H01M 50/528 - Connexions électriques fixes, c. à d. non prévues pour être déconnectées

Abrégé

Provided are an energy storage device and an electric device. The energy storage device includes a connector, a tab, and a welding protection sheet. The tab is connected to the connector. The welding protection sheet abuts against a surface of the tab away from the connector. The welding protection sheet includes a body, a first bent connection portion, and a first extending portion. The first bent connection portion is connected between the first extending portion and the body, and the first extending portion is foldable relative to the body to face towards the body. An end portion of the first extending portion away from the first bent connection portion has a first notch. The first notch has a width less than a width of the first extending portion. A distance between two first corners of the first extending portion is less than a length of the body.

Classes IPC  ?

• H01M 50/566 - Bornes caractérisées par leur procédé de fabrication par soudage, brasage ou brasage tendre
• H01M 50/103 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire
• H01M 50/538 - Connexions de plusieurs conducteurs ou languettes d’électrodes empilées enroulées ou pliées
• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation

Abrégé

The present application relates to the technical field of energy storage, and discloses a top cover assembly (30), an energy storage apparatus (100), and an electric device (1000). The top cover assembly (30) comprises a first lower plastic (11) and an explosion-proof valve (302); a reinforcing structure (2) is provided on an end of the first lower plastic (11); the reinforcing structure (2) comprises a bottom plate (21a) and a plurality of first reinforcing ribs (221) arranged on the side of the bottom plate (21a) facing the explosion-proof valve (302); each first reinforcing rib (221) comprises a first end (221a) close to a pole hole (111) and a second end (221b) distant from the pole hole (111); and in a height direction (Z) of the top cover assembly (30), the distance between the first reinforcing ribs (221) and the explosion-proof valve (302) gradually increases from the first ends (221a) to the second ends (221b). The present application is used for solving the problem of the explosion-proof valve (302) being prone to false triggering.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz

Abrégé

The present invention provides an end cover assembly (23), an energy storage apparatus (1), and an electric device. The end cover assembly (23) comprises a cover plate (235), an insulating support (236) arranged on one side of the cover plate (235), poles passing through the cover plate (235) and the insulating support (236), and adapter sheets. A second end of each pole is located on the side of the insulating support (236) facing away from the cover plate (235). Each adapter sheet comprises a first connecting portion (2332). The first connecting portion (2332) is connected to the second end of the pole. The surface of the first connecting portion (2332) facing away from the pole is provided with a recessed portion (2334). In the width direction of the cover plate (235), the width of the first connecting portion (2332) is a, the width of the second end of the pole is b, and the distance between an edge of the recessed portion (2334) and a corresponding edge of the first connecting portion (2332) is c, wherein a > b, 85% ≤ b/a, and 15% ≤ c/a ≤ 20%.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/176 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules prismatiques ou rectangulaires
• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
• H01M 50/516 - Procédés pour interconnecter les batteries ou cellules adjacentes par soudage, brasage ou brasage tendre

Abrégé

The present application provides an electrode assembly (230), an energy storage apparatus (200), and an electric device. The electrode assembly (230) comprises a first bare battery cell (231) and a second bare battery cell (232). The first bare battery cell (231) comprises a first cathode tab (2312) and a first anode tab (2313). The second bare battery cell (232) comprises a second cathode tab (2322) and a second anode tab (2323). In the thickness direction of the electrode assembly (230), the first cathode tab (2312) and the first anode tab (2313) are located on that side of a first top surface (2317) facing the second bare battery cell (232), and the second cathode tab (2322) and the second anode tab (2323) are located on that side of a second top surface (2327) facing the first bare battery cell (231). The technical solutions of the present application can reduce the time it takes for an assembly worker to align a plurality of battery cells, thus improving the assembly efficiency of a secondary battery.

Classes IPC  ?

• H01M 10/04 - Structure ou fabrication en général
• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés

Abrégé

The present application provides an energy storage battery (2000), an energy storage device (1), and an electric apparatus. The energy storage device (1) comprises a housing (1000), an energy storage battery (2000), and an adhesive layer (3000). The housing (1000) comprises first limiting plates (1200). The energy storage battery (2000) comprises an outer coating film (200) and a casing (101). The outer surface of the casing (101) comprises first regions (Q1) and second regions (Q2). The outer coating film (200) covers the second regions (Q2), so that the first regions (Q1) are exposed relative to the second regions (Q2). The adhesive layer (3000) is bonded between the first limiting plates (1200) and the first regions (Q1). In the energy storage device (1), the energy storage battery (2000) can be firmly connected to the housing (1000), thereby facilitating the improvement of the use reliability of the energy storage device (1).

Classes IPC  ?

• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires

Abrégé

The present application provides an energy storage device and an energy storage system. The energy storage device comprises battery cells (110), insulating plates (120), end plates (130), bases (140) and connecting pieces (150). Each end plate (130) is provided with first through slots (133); positioning through holes (134) are formed in the inner wall of each first through slot (133); each base (140) comprises a connection portion (141) and an insertion portion (142) connected to each other; the insertion portion (142) is inserted into the first through slot (133); a cavity (142a) recessed towards the connection portion (141) is provided at the end of the insertion portion (142) distant from the connection portion (141); two notches (142b) recessed towards the connection portion (141) are provided at the end of the insertion portion (142) distant from the connection portion (141); each notch (142b) penetrates through the outer wall of the insertion portion (142) and the inner wall of the cavity (142a); a positioning column (142c) is provided on the outer wall, which is located between the two notches (142b) and faces away from the cavity (142a), of the insertion portion (142); and the positioning column (142c) extends into the positioning through hole (134).

Classes IPC  ?

• H01M 50/244 - Boîtiers secondaires; Bâtis; Dispositifs de suspension; Dispositifs de manutention; Supports caractérisés par leur procédé de montage
• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs

Abrégé

The present application relates to an energy storage device (100), an electric system (200), and an energy storage system (300). The energy storage device (100) is provided with a wiring harness isolation plate assembly (110), electrical connectors (114), and batteries (130), wherein the wiring harness isolation plate assembly (110) is provided with a plurality of groups of exhaust holes (111), the plurality of groups of exhaust holes (111) being sequentially arranged in a first direction; a plurality of electrical connectors (114) and a plurality of batteries (130) are arranged on two opposite sides of the wiring harness isolation plate assembly (110); and each battery (130) comprises an explosion-proofing assembly (131), the explosion-proofing assembly (131) of each battery (130) being arranged corresponding to one group of exhaust holes (111), and the space of the explosion-proofing assembly (131) of each battery (130) that faces the wiring harness isolation plate assembly (110) being in communication with the exhaust holes (111) corresponding to said explosion-proofing assembly (131). The energy storage device (100) has a high safety performance.

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation
• H01M 50/588 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries à l’extérieur des batteries, p.ex. les contacts incorrects des bornes ou des barres omnibus
• H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p.ex. au magnésium ou à l'aluminium
• H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules

Abrégé

The present application provides an energy storage apparatus (10), a battery pack and an electric device. The energy storage apparatus (10) comprises a cell assembly (300), adapter pieces (200) and buffer members (100). The cell assembly (300) comprises a first cell group (330), first tabs (310), a second cell group (340), and second tabs (320). Each adapter piece (200) comprises a first tab connecting part (210), a central part (240) and a second tab connecting part (220) which are connected in sequence. Each buffer member (100) is located on the side of the corresponding adapter piece (200) facing the first cell group (330) and the second cell group (340). Each buffer member (100) comprises a first extension part (110), a main body part (130) and a second extension part (120) which are connected in sequence. The main body part (130) is bonded to the central part (240).

Classes IPC  ?

• H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
• H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
• H01M 10/04 - Structure ou fabrication en général

Abrégé

The present application relates to an end cap assembly (100), an energy storage device (200), an electric system (300), and an energy storage system (400). An explosion-proofing hole (111) penetrates a first surface (112) and a second surface (113); an explosion-proofing valve (120) is provided with a deformation portion (122) and a connection portion (121); a first lower plastic part (130) is provided with a vent hole (131), the orthographic projection of the vent hole (131) on the second surface (113) being a first projection (1311), and the orthographic projection of the connection portion (121) on the second surface (113) being a second projection (1211); and in the extension direction of a top cap (110), the distance between the end of the second projection (1211) facing away from the explosion-proofing hole (111) and the end of the first projection (1311) facing away from the explosion-proofing hole (111) is L1, and the length of the first projection (1311) is L2, 1/6≤L1/L2≤1/3.

Classes IPC  ?

• H01M 50/342 - Aménagements non refermables

Abrégé

Provided in the present invention are an energy storage apparatus (1) and an electrical device. The energy storage apparatus (1) comprises a pair of side plates (111), a pair of end plates (112), a plurality of battery cells (20) located in an accommodating space enclosed by the side plates (111) and the end plates (112) and provided with an opening, connection supports (113) provided between each two battery cells (20), connection plates (114) provided between the end plates (112) and the battery cells (20) and an upper cover (12). The ends of the connection supports (113) and the connection plates (114) close to the opening are provided with first engagement parts (110). A pair of edge plates (122) arranged opposite to each other in a first direction of the upper cover (12) are provided with a plurality of second engagement parts (120) in one-to-one correspondence with the first engagement parts (110). When the upper cover (12) covers the opening, the second engagement parts (120) are accommodated in engagement slots (1102) of the corresponding first engagement parts (110).

Classes IPC  ?

• H01M 50/244 - Boîtiers secondaires; Bâtis; Dispositifs de suspension; Dispositifs de manutention; Supports caractérisés par leur procédé de montage

Abrégé

A battery module (100) comprising: a cell group (10) comprising a plurality of cells (11), each cell (11) comprising a bottom plate (111), two surface plates (112) and two side plates (113), the two surface plates (112) and the two side plates (113) all being fixedly connected to the bottom plate (111), and first R angles (114) being formed at joints of the side plates (113) and the surface plates (112); and supports (30) provided between every two adjacent cells (11), each support (30) comprising a frame body (31), and the extended distance of the frame bodies (31) being less than the extended distance of the cells (11). Each frame body (31) comprises two vertical rods (311), each vertical rod (311) being provided with second R angles (3111) opposite to the first R angles (114). The openings of the first R angles (114) and the second R angles (3111) face the same side, the second R angles (3111) being greater than the first R angles (114).

Classes IPC  ?

• H01M 50/258 - Batteries modulaires; Boîtiers pourvus de moyens d’assemblage

Abrégé

Disclosed in the present application are an energy storage apparatus (100), a battery module (500), and an electrical device (1000). The energy storage apparatus (100) comprises a top cover (21), a first post (231) and a lower plastic part (22). The top cover (21) is provided with a first through hole (210). The first post (231) comprises a first post connection part (234) and a first post extension part (235) which are connected to each other. The lower plastic part (22) is provided with a positioning recess (221). In the width direction (Y) of the energy storage apparatus (100), two sides of the positioning recess (221) on the lower plastic part (22) are respectively provided with a limiting protruding rib (222). The lower plastic part (22) is provided with thinning grooves (226), and in the width direction (Y) of the energy storage apparatus, each limiting protruding rib (222) is located between a thinning groove (226) and the positioning recess (221), thereby improving the assembly efficiency and a welding yield.

Classes IPC  ?

• H01M 50/148 - Couvercles caractérisés par leur forme
• H01M 50/102 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique
• H01M 50/40 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES - Détails de construction ou procédés de fabrication des parties non actives des cellules électrochimiques autres que les piles à combustible, p.ex. piles hybrides Éléments d’espacement dans les cellules

Abrégé

The present application discloses an energy storage module and an energy storage system. An energy storage module (100) comprises a first side plate (110), a second side plate (120), a battery cell group (130), insulating plates (140) and end plates (150); the first side plate (110) and the second side plate (120) are arranged at an interval in a first direction; the insulating plates (140) are arranged between the first side plate (110) and the second side plate (120); the first surface of each insulating plate (140) facing away from the battery cell group (130) abuts against the inner surface of the corresponding end plate (150) in a second direction; notches extending in a third direction are provided at the connection of the inner surface of each end plate (150) to a third end surface (141) and the connection of the inner surface of the end plate (150) to a fourth end surface (142), respectively, so that one of the first side plate (110) and the second side plate (120) defines a relief space (10a) together with the end plate (150) and the insulating plate (140).

Classes IPC  ?

• H01M 50/242 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p.ex. dimensions adaptés pour protéger les batteries contre les vibrations, les collisions ou le gonflement

Abrégé

A lower plastic, an end cover assembly (20), an energy storage apparatus (100), and an electric device (300). The lower plastic comprises a main body plate (1), a recessed table (2), a boss (3), and a pole table (115) which are integrally formed by injection molding. A first surface (101) of the main body plate (1) is provided with a plurality of first ejector pin parts (S1), and the plurality of first ejector pin parts (S1) are symmetrical relative to the central axis; the plurality of first ejector pin parts (S1) are divided into a plurality of groups, at least two first ejector pin parts (S1) are comprised in each group, the first ejector pin parts (S1) in each group are arranged at intervals in the width direction of the main body plate (1) and are symmetrical relative to the central axis, and the plurality of groups are arranged at intervals in the length direction of the main body plate (1). By means of such an arrangement, the lower plastic can be evenly demolded, an ejection operation can be carried out after plastic molding, and there is no need to completely cool the lower plastic to room temperature in the mold before demolding, thereby improving the production efficiency.

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/16 - Matériau organique
• H01M 50/143 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie pour protéger contre les dommages causés par des facteurs externes à l'épreuve des explosions
• H01M 50/317 - Aménagements refermables

Abrégé

The present application relates to the technical field of energy storage and discloses an energy storage apparatus and an electric device (1000). The energy storage apparatus (100) comprises a housing (10), a winding-type electrode assembly (20), and a flow guide piece (30). The winding-type electrode assembly (20) comprises at least one winding (21). Each winding (21) comprises a heart part (213). The heart part (213) is located at a winding starting position of the winding (21). The flow guide piece (30) is provided with at least one through-hole set (300). Each through-hole set (300) comprises a plurality of through holes (3001) distributed at intervals in the length direction (X) of the energy storage apparatus (100). The heart part (213) of at least one winding (21) overlaps with projection parts of the plurality of through holes (3001) in the height direction (Z) of the energy storage apparatus (100). The present application solves the problem of low energy density per unit volume of the energy storage apparatus (100).

Classes IPC  ?

• H01M 50/682 - Récipients pour stockage de liquides; Conduits de refoulement à cet effet logés dans les boîtiers de la batterie ou de la cellule
• H01M 4/70 - Supports ou collecteurs caractérisés par la forme ou la configuration

Abrégé

A lower plastic (10), an end cap assembly, an energy storage apparatus (100), and an electrical device. The lower plastic (10) comprises: a main body plate (11) comprising a first surface (111) and a second surface (112) opposite to each other, and a sinking table (12) connected to one end of the main body plate (11) in the length direction; the sinking table (12) comprises a first long plate (121), a second long plate (122), and a bottom plate (123); the distance between a center region (121a) of the first long plate (121) and a middle region (1221) of the second long plate (122) is less than that between two end regions (121b) of the first long plate (121) and two side regions (1222) of the second long plate (122); and the wall thickness of the middle region (1221) is less than that of the two side regions (1222). By means of the arrangement, it is ensured that the lower plastic (10) is evenly cooled and not prone to deformation.

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation

Abrégé

The present application relates to an end cap assembly (100), an energy storage device (200), an electric system (300) and an energy storage system (400). The end cap assembly (100) is provided with a conductive pressure block (110), a top cap (120) and a stress member (130), wherein the conductive pressure block (110) is provided with a body portion (111) and a first protruding portion (112), a first surface (113) being provided away from the body portion (111); the stress member (130) seals a through hole (121) of the top cap (120) and comprises an abutting portion (131); and when a preset pressure is reached, the abutting portion (131) abuts against the first protruding portion (112), such that the energy storage device (200) is short-circuited; and the first surface (113) has an area of S1, the orthographic projection of the abutting portion (131) on the first surface (113) falls within the range of the first surface (113) and has an area of S2, and 1/9≤S2/S1≤3/5.

Classes IPC  ?

• H01M 50/581 - Dispositifs ou dispositions pour l’interruption du courant en réponse à la température
• H01M 50/147 - Couvercles
• H01M 50/598 - Moyens pour empêcher un usage ou une décharge indésirables Étiquettes de garantie

Abrégé

Provided in the present application are a bare cell (40), an energy storage apparatus (200), and an electric device (300). The bare cell (40) comprises a positive electrode sheet (10), a negative electrode sheet (20) and a separator (30). The positive electrode sheet (10) comprises a first current collector (11) and a first active material layer (12), wherein the first current collector (11) comprises a first coating region (113) and a first tab region (115), and the first active material layer (12) is arranged in the first coating region (113); the negative electrode sheet (20) comprises a second current collector (21) and a second active material layer (22), wherein the second current collector (21) comprises a second coating region (213) and a second tab region (214), and the second active material layer (22) is arranged in the second coating region (213); and in a direction from the first coating region (113) to the first tab region (115), the first tab region (115) and the second active material layer (22) are arranged spaced apart from each other.

Classes IPC  ?

• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés

Abrégé

A lower plastic component (30), an end cap assembly (100), an energy storage apparatus (1000), and an electric device. The lower plastic component (30) comprises a first lower plastic component (10). The first lower plastic component (10) comprises a first lower plastic component body (11), two first identification positions (A), and a first terminal through-hole (113), wherein the two first identification positions (A) are located on two sides of the lower plastic component (30) in the width direction. The connecting line between the centers of the two first identification positions (A) is a first connecting line (M1); the first lower plastic component body (11) has a first dividing line (N1), which extends in the length direction of the lower plastic component (30); and the first connecting line (M1) perpendicularly intersects the first dividing line (N1), and the axis of the first terminal through-hole (113) passes through the intersection point of the first connecting line (M1) and the first dividing line (N1). An automated assembly machine thereby implements precise alignment of the first lower plastic component (10) and an end cap (40).

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation
• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires

Abrégé

A lower plastic, an end cover assembly (20), an energy storage apparatus (100) and an electrical device (300). The lower plastic comprises a main body plate (1) and a sinking platform (2); the sinking platform (2) is connected to one end of the main body plate (1) in the length direction, a first side surface (201) of the sinking platform (2) being flush with a first surface (101), a second side surface (202) of the sinking platform (2) opposite to the first side surface (201) protruding out of a second surface (102), a third side surface (203) of the sinking platform (2) being located between the first side surface (201) and the second side surface (202), and the third side surface (203) facing away from the main body plate (1); the sinking platform (2) and the main body plate (1) are of an integrally formed structure, at least one position of the third side surface (203) being configured as an injection molding part (260); and a boss (3) is arranged at the end of the main body plate (1) facing back to the sinking platform (2). The time of an injection molding process can be shortened, and production efficiency can be improved.

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation

Abrégé

Provided in the present application are an energy storage device and an energy storage system. The energy storage device comprises at least two batteries, a first cover plate and flow guide tubes, wherein each battery comprises an end cover and an explosion-proof valve, and the explosion-proof valve is arranged on the end cover; the first cover plate is located on the batteries on the side where the end covers are arranged; the first cover plate comprises a first surface and a second surface which are opposite each other; the first cover plate is provided with through holes running through the first surface and the second surface, and a side wall of each through hole is arranged corresponding to the explosion-proof valve; and the flow guide tubes extend through the through holes. Each flow guide tube comprises a first tube section and a second tube section, wherein the first tube section and the second tube section both protrude relative to the first cover plate, and are located on two opposite sides of the first cover plate respectively; the first tube section extends from the first surface towards the end cover, and the second tube section extends from the second surface in a direction away from the first cover plate; and the interior of the second tube section is in communication with the through hole. The technical solution of the present application can avoid abnormal insulation of the energy storage device caused after an electrolyte is ejected via the explosion-proof valve, thus increasing the working stability of the energy storage device.

Classes IPC  ?

• H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterie; Systèmes d’évent à double couvercle
• H01M 50/392 - Aménagements pour faciliter l’échappement des gaz avec des moyens pour empêcher la fuite de l’électrolyte par les trous d’évents

Abrégé

A pole assembly (100), an energy storage apparatus, and an electric device. The pole assembly (100) comprises: a first metal layer (12); and a second metal layer (14), wherein the second metal layer (14) is connected to the first metal layer (12), a positioning blind hole (16) is formed on the surface of the second metal layer (14) away from the first metal layer (12), and the positioning blind hole (16) is used for positioning the pole assembly (100) when the pole assembly (100) is machined using a stamping process.

Classes IPC  ?

• H01M 50/562 - Bornes caractérisées par le matériau
• H01M 50/564 - Bornes caractérisées par leur procédé de fabrication

Abrégé

Provided are an end cover assembly, a battery cell, a battery module, and an energy storage device. The end cover assembly includes a cover plate, an explosion-proof valve, a first electrode terminal, and a second electrode terminal. The cover plate has a first protrusion, at least one second protrusion, and at least one third protrusion. The first protrusion has a mounting hole, and the at least one second protrusion and the at least one third protrusion are arranged at two opposite sides of the first protrusion in a length direction of the cover plate, respectively. The explosion-proof valve is mounted in the mounting hole. The first electrode terminal and the second electrode terminal are arranged on the cover plate and spaced apart from each other.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
• H01M 50/383 - Moyens pare-flammes ou moyens de prévention de l’allumage
• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
• H01M 50/55 - Bornes caractérisées par la position des terminaux sur les cellules sur le même côté de la cellule
• H01M 50/557 - Bornes en forme de plaque

Abrégé

The present application discloses a gas-phase hazardous substance treatment member and preparation method, an energy storage device and electrical equipment, and relates to the technical field of energy storage. The gas-phase hazardous substance treatment member includes: a first particle layer, including metal or alloy containing particles; a second particle layer, wrapping the first particle layer and including carbonaceous particles; a breathable cushion located on both sides of the second particle layer along a thickness direction thereof.

Classes IPC  ?

• B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
• B01D 53/04 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
• B01D 53/82 - Procédés en phase solide avec des réactifs à l'état stationnaire
• B01J 20/02 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique
• B01J 20/04 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des composés des métaux alcalins, des métaux alcalino-terreux ou du magnésium
• B01J 20/28 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation caractérisées par leur forme ou leurs propriétés physiques
• B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
• B01J 20/32 - Imprégnation ou revêtement
• H01M 10/52 - Enlèvement des gaz situés à l'intérieur de l'élément secondaire, p.ex. par absorption

Abrégé

The present application provides an electrode assembly (230), an energy storage apparatus (200), and an electrical device. The electrode assembly (230) comprises a first bare cell (231) and a second bare cell (232); the first bare cell (231) comprises a first body (2314) and a first finishing part (2315), the second bare cell (232) comprises a second body (2324) as well as a first portion (2340) and a second portion (2341), the first portion (2340) is connected to the second body (2324), the first portion (2340) is wound around the second body (2324), the second portion (2341) is connected to the end of the first portion (2340) away from the second body (2324), and the second portion (2341) is wound around the first bare cell (231). According to the technical solution of the present application, two cells can be fixedly connected, so that electrical connection between the two cells is more stable.

Classes IPC  ?

• H01M 10/04 - Structure ou fabrication en général
• H01M 10/0587 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure enroulés, c. à d. des électrodes positives enroulées, des électrodes négatives enroulées et des séparateurs enroulés
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium

Abrégé

The present application provides an end cover assembly (120), an energy storage apparatus (100), and an electrical device. In the end cover assembly (120) shown in the present application, two first force-bearing sites (625) and two second force-bearing sites (634) are basically tetragonally distributed. During a demolding process after injection molding of a negative electrode upper plastic part (62) is completed, the two first force-bearing sites (625) and the two second force-bearing sites (634) may serve as mold pushing ejector pin sites, and four mold pushing ejector pins are used to respectively push the four force-bearing sites the two first force-bearing sites (625) and the two second force-bearing sites (634), so as to uniformly demold the negative electrode upper plastic part (62), thus preventing the negative electrode upper plastic part (62) from being stressed and deformed due to demolding before complete cooling, and increasing the product yield.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires

Abrégé

Provided are an energy storage apparatus (1) and an electric device. The energy storage apparatus (1) comprises a plurality of battery cells (20), a pair of side plates (111) arranged opposite to each other in a first direction, and a pair of end plates (112) arranged opposite to each other in a second direction, wherein the side plates (111) and the end plates (112) define an accommodating space, and the plurality of battery cells (20) are arranged in the accommodating space at intervals in the second direction. An insulating member is arranged between each end plate (112) and the battery cell (20) adjacent to said end plate. A first insulating film (41) is attached to at least part of each surface of each battery cell (20) facing the side plates (111); a second insulating film (42) is attached to an area of a first surface of each side plate (111) facing the plurality of battery cells (20) and at least corresponding to the plurality of battery cells (20); and at least one end of the second insulating film (42) in a third direction is folded and attached to a second surface of the side plate (111) opposite to the first surface.

Classes IPC  ?

• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation
• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs

Abrégé

An energy storage apparatus (100) and an electric device (300). The energy storage apparatus (100) comprises an adapter plate (21), a card holder (22), a lower plastic member (12) and a cover plate (11), wherein the adapter plate (21) comprises a fuse portion (213), which is provided with a first through hole (214) in a penetrating manner; the card holder (22) is arranged on the fuse portion (213), and closes the first through hole (214); the lower plastic member (12) is provided with a second through hole (121) in a penetrating manner, the card holder (22) directly faces the second through hole (121), and a portion of the card holder (22) protruding from the fuse portion (213) is received in the second through hole (121) and closes the second through hole (121); the cover plate (11) is connected to the side of the lower plastic member (12) facing away from the adapter plate (21); the cover plate (11) comprises an energy storage apparatus identification feature (111), which directly faces the card holder (22) through the second through hole (121); and the card holder (22) is made of an insulating transparent material.

Classes IPC  ?

• H01M 10/04 - Structure ou fabrication en général
• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie

Abrégé

Provided in the present application are an end cover assembly (120), an energy storage apparatus (100) and an electrical device. A stress response member (50) is mounted in an assembly hole (209). A negative electrode unit (60) is mounted on an end cover (20) and covers the stress response member (50). A negative electrode electrically-conductive pressing block (61) is located on a side of the end cover (20) in the thickness direction. A boss (616) is arranged on the surface of an extension part (612) facing the end cover (20) and is arranged opposite to the stress response member (50) in the thickness direction of the end cover (20). An annular indentation (617) is provided on the surface of the extension part (612) facing away from the end cover (20), and a projection of the annular indentation (617) on the surface of the extension part (612) facing the end cover (20) surrounds the boss (616). A first bearing portion (6221) is located between the extension part (612) and the end cover (20), and an avoidance hole (629) avoids the boss (616).

Classes IPC  ?

• H01M 50/578 - Dispositifs ou dispositions pour l’interruption du courant en réponse à la pression

Abrégé

Provided in the present application are an energy storage device (100) and an electric apparatus (1000). The energy storage device (100) comprises an adapter plate (150), a tab (131) and a welding protection plate (160), wherein the tab (131) is connected to the adapter plate (150); the welding protection plate (160) is pressed against the tab (131); and the welding protection plate (160) comprises a main body portion (161), a first bending connection portion (162) and a first extension portion (164). The first bending connection portion (162) is connected between the first extension portion (164) and the main body portion (161), and the first extension portion (164) and the main body portion (161) are folded relative to each other and are arranged opposite each other; and a first notch (166) is formed at the end portion of the first extension portion (164) away from the first bending connection portion (162), such that a mechanical arm can extend into the first notch (166) to clamp the welding protection plate (160), and thus the welding protection plate (160) is clamped.

Classes IPC  ?

• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs

Abrégé

The present application provides a battery module (100), an energy storage apparatus (1000), and an electric device. The battery module (100) comprises a plurality of battery cells (10) and elastic heat insulation members (30). The plurality of battery cells (10) are arranged in a first direction (A). Each elastic heat insulation member (30) is arranged between two adjacent battery cells (10); the elastic heat insulation member (30) comprises a heat insulation body portion (31), a first insulation film (33), and a second insulation film (35); the first insulation film (33) is bonded to and covers the heat insulation body portion (31); the second insulation film (35) attaches to and covers the side of the first insulation film (33) facing away from the heat insulation body portion (31); the material strength of the second insulation film (35) is less than the material strength of the first insulation film (33); and the melting point of the first insulation film (33) is less than the melting point of the second insulation film (35).

Classes IPC  ?

• H01M 10/658 - Moyens de commande de la température associés de façon structurelle avec les éléments par isolation ou protection thermique
• H01M 10/653 - Moyens de commande de la température associés de façon structurelle avec les éléments caractérisés par des matériaux électriquement isolants ou thermiquement conducteurs
• H01M 50/409 - Séparateurs, membranes ou diaphragmes caractérisés par le matériau

Abrégé

An adapter assembly (20), an energy storage apparatus (100), and an electronic device (300). The adapter assembly (20) comprises an adapter piece (21) and a card holder (22); the adapter piece (21) comprises a fuse portion (213), and the fuse portion (213) is provided with a first through hole (214) penetrating therethrough; the card holder (22) comprises a first card holder portion (221) and a second card holder portion (222), the first card holder portion (221) and the second card holder portion (222) are arranged on two opposite surfaces of the fuse portion (213), respectively, and two opposite ends of the first card holder portion (221) and the second card holder portion (222) in the length direction of the card holder (22) are connected to a post connecting portion (211) and a tab connecting portion (212), respectively; and the side of the first card holder portion (221) facing away from a battery cell (31) is provided with a recessed water port (221g), and the water port (221g) directly faces the first through hole (214).

Classes IPC  ?

• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
• H01M 50/583 - Dispositifs ou dispositions pour l’interruption du courant en réponse au courant, p.ex. fusibles

Abrégé

The present application provides an end cover component (120), an energy storage apparatus (100), an energy storage system (1000), and an electrical device. In the end cover component (120) shown in the present application, when a positive electrode conductive pressing block (71) is assembled on an end cover (20), two first protruding columns (722) are inclined with respect to and symmetrical about a third mounting hole (721) and two second protruding columns (725) are inclined with respect to and are symmetrical about the third mounting hole (721), such that a positive electrode separation part (72) generates a twisting force. A notch (723) of the positive electrode separation part (72) can release the twisting force generated by the positive electrode separation part (72), so as to prevent the positive electrode separation part (72) from being fractured by the twisting force, thereby helping to increase the yield of the energy storage apparatuses (100).

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/176 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules prismatiques ou rectangulaires
• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation

Abrégé

Lower plastic, an end cover assembly (20), an energy storage apparatus (100), and an electric device (300). The lower plastic comprises a main body plate (1), a sinking platform (2) and a vent plate (3) that are integrally formed by means of injection molding. A first surface (101) and a third surface (201) are provided with a plurality of first ejector pin portions (S1), and the plurality of first ejector pin portions (S1) are symmetrical relative to a central axis; the plurality of first ejector pin portions (S1) are divided into multiple groups, each group comprises at least two first ejector pin portions (S1), the first ejector pin portions (S1) in each group are arranged at intervals in the width direction of the main body plate (1) and are symmetrical relative to the central axis, and the multiple groups are arranged at intervals in the length direction of the main body plate (1). When a plurality of ejector pins are in contact with the plurality of first ejector pin portions (S1) and apply an ejection force, the lower plastic can be uniformly demolded, an ejection operation can be performed immediately after the plastic is molded, and the plastic does not need to be completely cooled to room temperature before demolding, thereby improving the production efficiency.

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/16 - Matériau organique
• H01M 50/143 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie pour protéger contre les dommages causés par des facteurs externes à l'épreuve des explosions

Abrégé

The present application discloses a lower plastic (30), an end cover assembly (100), an energy storage device (1000), and an electric apparatus. The lower plastic (30) comprises a lower plastic body (11), the lower plastic body (11) is provided with a protrusion (12), a liquid injection through hole (115), a groove (16) and a through hole (114), and the liquid injection through hole (115), the through hole (114), the protrusion (12) and the groove (16) have a common symmetry axis (O). The groove (16) comprises two first flow guide grooves (165a), second flow guide grooves (166a) and two third flow guide grooves (167a), and the groove bottom wall of each flow guide groove is provided with a sub-flow guide hole. The cross-sectional area of each first flow guide groove (165a) is greater than or equal to the cross-sectional area of the third flow guide groove (167a), and is greater than the cross-sectional area of the second flow guide groove (166a). According to the present application, an electrolyte can flow back to an electrode assembly (200).

Classes IPC  ?

• H01M 50/148 - Couvercles caractérisés par leur forme
• H01M 50/102 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique

Abrégé

An end cap assembly (103), an energy storage device (100) and an electric apparatus (300). The end cap assembly (103) comprises a top cap (1031) and lower plastic (10), wherein the top cap (1031) is provided with an explosion-proof valve (1033); the lower plastic (10) comprises a main body plate (11), a boss (12) and a guide rib (14), the boss (12) being connected to the main body plate (11) and being arranged opposite the explosion-proof valve (1033), the boss (12) comprising a first protrusion (121) and a second protrusion (122), which are connected to each other, the first protrusion (121) and the second protrusion (122) both being provided with air vents (13), one end of the guide rib (14) being connected to the main body plate (11), and the other end of the guide rib (14) being connected to a side wall of the end of the first protrusion (121) facing away from the second protrusion (122), thereby facilitating improvement of the structural strength of the lower plastic (10) by means of the guide rib (14).

Classes IPC  ?

• H01M 50/147 - Couvercles
• H01M 50/593 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries caractérisés par les moyens de protection Éléments d’espacement; Plaques d’isolation

Abrégé

A cover plate assembly and an energy storage apparatus having the cover plate assembly. The cover plate assembly comprises an end cover, a securing member, and a push-rotation member; the securing member and the end cover are secured via welding, the securing member and the end cover together define a liquid injection groove, the bottom of the liquid injection groove is provided with a liquid injection hole passing through the bottom of the liquid injection groove, the top of the liquid injection groove has a notch passing through same, and a stop arm is disposed at the notch; the securing member, the push-rotation member, and the end cover are stacked along the thickness direction of the cover plate assembly; the push-rotation member is disposed in the liquid injection groove and is adapted to rotate horizontally until abutting the stop arm in the thickness direction, thereby directly or indirectly blocking the liquid injection hole; and the push-rotation member is likewise adapted to rotate horizontally until separating from the stop arm in the thickness direction; wherein, the horizontal direction and the thickness direction are perpendicular to one another.

Classes IPC  ?

• H01M 50/627 - Ouvertures de remplissage

Abrégé

A battery pack (100) and an energy storage device. The battery pack (100) comprises a cover body (24), a liquid cooling plate (26) and an explosion-proof valve (16), wherein the liquid cooling plate (26) is connected to the bottom of the cover body (24), the liquid cooling plate (26) is provided with an installation hole (20), and the explosion-proof valve (16) is installed in the installation hole (20) and seals the installation hole (20).

Classes IPC  ?

• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/6554 - Barres ou plaques
• H01M 10/6567 - Liquides

Abrégé

Disclosed in the present application are a housing assembly, a battery, a battery pack and an energy storage device. The housing assembly comprises a housing and an end cap assembly, wherein the housing is provided with an open end, a first thickness reduction area is provided at the end of an inner surface of the housing close to the open end, and a first step part is formed between the first thickness reduction area and the inner surface of the housing; and the end cap assembly comprises an end cap, a second thickness reduction area is provided at a circumferential edge of the end cap, a second step part is formed between the second thickness reduction area and a side wall of the end cap, the second step part is adapted to the first step part, the end cap is embedded into the housing by means of the open end, and the second thickness reduction area abuts against the first step part in the height direction of the housing.

Classes IPC  ?

• H01M 50/103 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire

Abrégé

The present disclosure provides a lower plastic part, an end cover assembly, an energy storage device, and electrical equipment. The lower plastic part has a first surface and a second surface opposite to the first surface. The lower plastic part defines a groove, a stream guidance hole, and a concave portion. The groove and the concave portion are located at opposite ends of the lower plastic part in its length direction. The stream guidance hole penetrates through a bottom wall of the groove. A hole diameter of the stream guidance hole is progressively smaller. The lower plastic part further comprises a plurality of first ejector pin parts, a plurality of second ejector pin parts, and a plurality of third ejector pin parts which are symmetrical with respect to a center line of the lower plastic part in a width direction.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/133 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par les propriétés physiques, p.ex. perméabilité au gaz ou dimensions Épaisseur
• H01M 50/143 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie pour protéger contre les dommages causés par des facteurs externes à l'épreuve des explosions
• H01M 50/16 - Matériau organique
• H01M 50/70 - Dispositions pour brasser ou faire circuler l’électrolyte

Abrégé

A negative electrode particle and a preparation method therefor, and a negative electrode plate and an energy storage apparatus. The negative electrode particle has a closed pore located in the negative electrode particle and an open pore located in the surface of the negative electrode particle, the range of the ratio of the pore volume of the closed pore to the pore volume of the open pore is 6≤C1/C2≤11, and the range of the pore volume of the closed pore is 0.03 cm3/g≤C1≤0.12 cm 3/g. By means of the negative electrode particle, a certain ion conduction channel can be construction, and serious side effects of the negative electrode particle with an electrolyte can also be prevented. Moreover, the negative electrode particle has more active-ion storage sites, such that the negative electrode particle has a relatively high gram capacity and first efficiency, and when the negative electrode particle is applied to an energy storage apparatus, the cycle performance of the energy storage apparatus is not influenced.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/583 - Matériau carboné, p.ex. composés au graphite d'intercalation ou CFx
• H01M 4/133 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de matériau carboné, p.ex. composés d'intercalation du graphite ou CFx
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium

Abrégé

A negative electrode material, a negative electrode sheet and a preparation method therefor, an energy storage device and an electric device. The negative electrode material comprises hard carbon, wherein the hard carbon has a porous structure, and satisfies: 0.32≤Dv50/1000V≤2.40, where the unit of the Dv50 of the hard carbon is μm, and the total volume of multiple pores in the hard carbon is V, with the unit thereof being cm 3/g.

Classes IPC  ?

• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p.ex. liants, charges
• H01M 4/04 - Procédés de fabrication en général
• H01M 4/02 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages

Abrégé

A composite positive electrode sheet and a preparation method therefor, and a lithium ion battery comprising same. The positive electrode sheet comprises a current collector and active substance layers, wherein the active substance layers comprise a coating layer A, a coating layer B and a coating layer C; the coating layer A is arranged on the surface of the current collector, the coating layer B is arranged on the surface of the coating layer A, and the coating layer C is arranged on the surface of the coating layer B; the median particle size Dv50 of a positive active substance of the coating layer A ≤ the median particle size Dv50 of a positive active substance of the coating layer C < the median particle size Dv50 of a positive active substance of the coating layer B; and the active substances are selected from among one or a combination of lithium manganese iron phosphate, lithium iron phosphate, lithium vanadium phosphate and lithium cobalt phosphate. A positive electrode sheet of a structure containing three active substance layers is used, and the sizes of active substance particles of the active substance layers and the size relationship therebetween are adjusted and controlled, such that a positive electrode sheet with good electrochemical performance and capacity performance is prepared. Moreover, by means of optimizing a pulping process of a positive electrode material, the problems in the prior art of raw materials being wasted and the economic cost being high in the pulping process are solved.

Classes IPC  ?

• H01M 4/136 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/1397 - Procédés de fabrication d’électrodes à base de composés inorganiques autres que les oxydes ou les hydroxydes, p.ex. sulfures, séléniures, tellurures, halogénures ou LiCoFy
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 4/04 - Procédés de fabrication en général
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium

Abrégé

The present disclosure relates to an energy storage cabin. The energy storage cabin includes a cabin body and a cabin door. The cabin body has an opening and a first accommodation space. The cabin door is disposed at the opening of the cabin body in an openable and closable manner. The cabin door includes an inner door panel, an outer door panel, and a connecting member. The inner door panel is located at an inner side of the outer door panel in a stacking manner. A thermal insulation layer is provided between the inner door panel and the outer door panel. The connecting member penetrates the inner door panel to connect the inner door panel with the outer door panel. A heat insulation pad is sandwiched between the inner door panel and the outer door panel at a position where the connecting member penetrates the inner door panel.

Classes IPC  ?

• E06B 3/70 - Vantaux de porte
• E04H 5/02 - Bâtiments ou groupes de bâtiments à des fins industrielles, p.ex. pour centrales énergétiques ou usines

Abrégé

Disclosed in the present application are a lower plastic part, a top cover assembly, an energy storage apparatus, and an electrical device. The lower plastic part comprises a first surface and a second surface facing away from each other, and the lower plastic part is provided with a first electrolyte injection hole penetrating through the first surface and the second surface, a flow diverting rib protruding from the first surface; the flow diverting rib is located at the edge of the first electrolyte injection hole, and the flow diverting rib comprises a first flow diverting section and a second flow diverting section connected at an angle; a bent part is formed at the junction of the first flow diverting section and the second flow diverting section, the bent part being arranged close to the first electrolyte injection hole; the first flow diverting section and the second flow diverting section are used for diverting part of an electrolyte injected through the first electrolyte injection hole to different positions of a bare battery cell. The lower plastic part, the top cover assembly, the energy storage apparatus and the electrical device of the present application can reduce the probability of damage to bare battery cells caused by direct impacts of electrolytes on the bare battery cells, and can further increase the efficiency of the bare battery cells absorbing the electrolytes so as to shorten an infiltration time.

Classes IPC  ?

• H01M 50/627 - Ouvertures de remplissage

Abrégé

An energy storage compartment (10), comprising a compartment body (11) and a compartment door (12) which is mounted on the compartment body (11) and can be opened and closed. The compartment door (12) comprises an inner door plate (122), an outer door plate (121) and connecting pieces (127) connecting the inner door plate (122) and the outer door plate (121); a heat preservation layer (125) is provided between the inner door plate (122) and the outer door plate (121); and, at the positions where the connecting pieces (127) are located, a heat insulation pad (126) is clamped between the inner door plate (122) and the outer door plate (121).

Classes IPC  ?

• H01M 50/251 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports spécialement adaptés aux dispositifs fixes, p.ex. production d’énergie tampon ou production d’énergie de secours
• H01M 50/264 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports avec des moyens de fixation, p.ex. des serrures pour des cellules ou des batteries, p.ex. cadres périphériques, courroies ou tiges
• H01M 10/615 - Chauffage ou maintien de la chaleur

Abrégé

An energy storage device and an electricity-consumption device. The energy storage device includes an insulation film and an electrode assembly. The insulation film includes a bottom film, a first side film, and a second side film. The bottom film includes a first side, a second side, and a third side. In a length direction of the bottom film, the first side film at least partially exceeds the bottom film, and the second side film at least partially exceeds the bottom film. When the electrode assembly is wrapped by the insulation film, the first side film is folded relative to the bottom film along the first side, the second side film is folded relative to the bottom film along the second side, a second wrapping section is folded relative to a first wrapping section, and a fourth wrapping section is folded relative to a third wrapping section.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/103 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire
• H01M 50/586 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries à l’intérieur des batteries p.ex. les contacts incorrects des électrodes

Abrégé

An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. A main body plate of an insulation holder includes a first surface and a second surface. A first wall plate and a second wall plate of the holder are both provided on the first surface and opposite to each other in the length direction of the main body plate. The first wall plate bends and extends away from the main body plate in the thickness direction of the main body plate. The second wall plate bends and extends away from the main body plate in the thickness direction of the main body plate. The main body plate, the first wall plate, and the second wall plate jointly define a receiving space to receive the explosion-proof-valve holder, and are all spaced apart from the explosion-proof-valve holder to form an airflow channel.

Classes IPC  ?

• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires
• H01M 50/103 - Boîtiers, fourreaux ou enveloppes primaires d’une seule cellule ou d’une seule batterie caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire
• H01M 50/342 - Aménagements non refermables
• H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterie; Systèmes d’évent à double couvercle
• H01M 50/383 - Moyens pare-flammes ou moyens de prévention de l’allumage

Abrégé

A connecting structure, a battery module, an energy storage apparatus, and an electronic device are provided. The connecting structure includes a connecting assembly and a conducting member. The connecting assembly includes a first connecting member and a second connecting member. The first connecting member includes a first bending portion, a first connecting portion, and a second connecting portion. The first connecting portion, the first bending portion, and the second connecting portion surround a space to define an inserting groove. The second connecting member is mounted in the inserting groove and resiliently abuts against the first connecting portion and the second connecting portion. The second connecting member includes a bridging portion, a first plate, and a second plate. Each of the first plate and the second plate is provided with a resilient portion, the resilient portion has a first sub-section.

Classes IPC  ?

• H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
• H01M 50/258 - Batteries modulaires; Boîtiers pourvus de moyens d’assemblage
• H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentes; Interconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p.ex. modules de barres omnibus
• H01M 50/516 - Procédés pour interconnecter les batteries ou cellules adjacentes par soudage, brasage ou brasage tendre

Abrégé

A connector, a battery, a battery pack, and an electricity-consumption device are provided in the disclosure. The connector includes a current collecting layer and a functional layer. The functional layer is disposed on at least part of a surface of the current collecting layer. An absorption rate of the functional layer for a laser is greater than an absorption rate of the current collecting layer for the laser, and the functional layer is partially soluble in the electrolyte.

Classes IPC  ?

• H01M 50/536 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le procédé de fixation des conducteurs aux électrodes, p.ex. soudage
• H01M 50/534 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le matériau des conducteurs ou des languettes

Abrégé

The present application provides a current collecting disc, an end cover assembly, an energy storage device and an electric apparatus. The current collecting disc comprises a first disc body part and an extending part, wherein the extending part is fixedly connected to the first disc body part, and the extending part and the first disc body part are integrally formed.

Classes IPC  ?

• H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
• H01M 50/536 - Connexions d’électrodes dans un boîtier de batterie caractérisées par le procédé de fixation des conducteurs aux électrodes, p.ex. soudage

Abrégé

The present application provides a current collector, an end cap assembly, an energy storage apparatus, an energy storage module, and an electric device. The current collector comprises a disc body and a boss, and the boss is provided on the surface of the disc body and protrudes relative to the disc body; the boss comprises a first step and a second step, the first step is provided on the surface of the disc body and protrudes relative to the surface of the disc body, and the second step is provided on the surface of the first step away from the disc body; the current collector is provided with a groove, the opening of the groove is located on the surface of the first step away from the disc body, and the groove is recessed in the direction towards the disc body from the surface of the first step away from the disc body and is provided around the second step. The current collector in the present application can collect welding slag generated during welding between the current collector and an end cap, thereby improving the use safety performance of an energy storage apparatus.

Classes IPC  ?

• H01M 50/586 - Moyens pour empêcher un usage ou une décharge indésirables pour empêcher les contacts incorrects à l’intérieur ou à l’extérieur des batteries à l’intérieur des batteries p.ex. les contacts incorrects des électrodes

Abrégé

A connecting piece (100), a battery (200), a battery pack (300), and an electronic device (400). The connecting piece (100) comprises a current collection layer (110), and a functional layer (120), the functional layer (120) being provided on at least a part of the surface of the current collection layer (110); and the absorption rate of the functional layer (120) for laser light is greater than the absorption rate of the current collection layer (110) for laser light, and the functional layer (120) is partially soluble in an electrolyte of a battery (200).

Classes IPC  ?

• H01M 4/66 - Emploi de matériaux spécifiés
• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie

Abrégé

A liquid cooling pipe joint (40), a liquid cooling pipeline device, and an energy storage system (100). The liquid cooling pipe joint (40) comprises: a plurality of first bridging pipe groups (411); a liquid collecting pipe (412), one end of each of the plurality of first bridging pipe groups (411) being communicated with the liquid collecting pipe (412); a second bridging pipe group (413), one end of the second bridging pipe group (413) being communicated with the liquid collecting pipe (412); and a stop valve (414), mounted in the second bridging pipe group (413). The thermal management effect can be ensured, and the use and manufacturing costs can be reduced.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

The present application relates to a battery pack (100), comprising: at least one battery module (10); a liquid cooling plate (20), the liquid cooling plate (20) being disposed on the bottom surface of the at least one battery module (10); and at least one first limiting member (30), each first limiting member (30) being disposed between the liquid cooling plate (20) and the bottom surface of each battery module (10), so that an adhesive applying gap (40) having a uniform thickness is formed between the liquid cooling plate (20) and the bottom surface of each battery module (10), wherein a heat conducting adhesive is applied in the adhesive applying gap (40), and the liquid cooling plate (20) is in heat transfer fit with the at least one battery module (10) by means of the heat conducting adhesive.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/617 - Types de commande de la température pour réaliser l'uniformité ou une répartition désirée de la température 
• H01M 10/653 - Moyens de commande de la température associés de façon structurelle avec les éléments caractérisés par des matériaux électriquement isolants ou thermiquement conducteurs

Abrégé

232y1-y44, where 0

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p.ex. LiMn2O4 ou LiMn2OxFy
• H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p.ex. LiNiO2, LiCoO2 ou LiCoOxFy
• H01M 4/58 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs de structures polyanioniques, p.ex. phosphates, silicates ou borates
• H01M 4/131 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Électrodes Électrodes composées d'un ou comprenant un matériau actif Électrodes pour accumulateurs à électrolyte non aqueux, p.ex. pour accumulateurs au lithium; Leurs procédés de fabrication Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p.ex. LiCoOx
• H01M 4/1391 - Procédés de fabrication d'électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p.ex. LiCoOx
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium