The present application provides a cooling component and a battery pack. The cooling component include: a cooling bottom plate supporting bottoms of a battery cell; and a cooling side plate bent and connected to one side of the whole of the cooling bottom plate, and the cooling side plate abuts on and is thermally conductively connected to one side of the battery cell. The cooling side plate includes a flow channel part and a buffered part. The flow channel part is provided with one or more cooling flow channels. Each cooling flow channels is configured to circulate the cooling medium. The buffered part is provided with a buffer cavity, and the buffer cavity extends along a length direction of the cooling side plate.
H01M 10/6556 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur
H01M 10/658 - Moyens de commande de la température associés de façon structurelle avec les éléments par isolation ou protection thermique
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 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 50/293 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par le matériau
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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
A thermal composite laminated cell and a battery cell are disclosed by this application. The thermal composite laminated battery cell includes a first cell unit, a second cell unit and a separator with a continuous layer structure, wherein the outermost sides of the first cell unit are negative electrode sheets, and the outermost sides of the second cell unit are positive electrode sheets. The separator with a continuous layer structure includes a plurality of main bodies and a plurality of bent portions all alternately and continuously disposed, the first cell units and the second cell units are alternately disposed in a thickness direction, and the adjacent first cell unit and the second cell unit are separated by the main body.
H01M 50/466 - Séparateurs, membranes ou diaphragmes caractérisés par leur forme en forme de U, de sac ou pliés
H01M 10/0583 - Structure ou fabrication d'accumulateurs à éléments de structure pliés à l'exception des éléments enroulés, c.-à-d. des électrodes positives ou négatives pliées ou des séparateurs pliés, p. ex. à électrodes ou séparateurs en forme de Z
3.
BATTERY MODULE AND MANUFACTURING METHOD THEREFOR, BATTERY PACK AND MANUFACTURING METHOD THEREFOR, AND ELECTRIC APPARATUS
A battery module and a manufacturing method therefor, a battery pack and a manufacturing method therefor, and an electric apparatus. The battery module comprises: battery cell groups, which include a top-layer cell group and non-top-layer cell groups, wherein each layer of cell group comprises a plurality of cells (10) arranged in a first direction A; and supports, which include intermediate supports (20) and a top-layer support (30), wherein the intermediate supports (20) are each arranged between the top-layer cell group and the non-top-layer cell groups and/or between every two adjacent layers of cell groups among the non-top-layer cell groups; the top-layer support (30) is arranged on the side of the top-layer cell group facing away from the non-top-layer cell groups; and in a stacking direction B of the cell groups, a plurality of accommodating grooves (21) are provided in the side face of each of the intermediate supports (20) and the top-layer support (30) close to the cell groups, the plurality of accommodating grooves (21) are arranged in the first direction A, the plurality of first accommodating grooves (21) respectively correspond on a one-to-one basis to the plurality of cells (10) of the cell groups adjacent thereto, and the cells (10) are fixed in the first accommodating grooves (21) corresponding thereto.
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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 secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
A button-type casing structure and a button cell. The button-type casing structure comprises a first end wall (1), a first side wall (2), a second side wall (3) and a third side wall (4), wherein the second side wall (3) has an annular step surface (31) facing one side of the first end wall (1); two ends of the first side wall (2) are respectively circumferentially connected to an edge of the first end wall (1) and an inner ring of the second side wall (3); a first end of the third side wall (4) is circumferentially connected to an outer ring of the second side wall (3), and a second end of the third side wall (4) extends in a direction away from the first end wall (1); and the included angle A between the second side wall (3) and the third side wall (4) satisfies 90°≤A≤95°, the second side wall (3) transitions to the third side wall (4) by means of a curved surface to form an annular first curved portion (5), and the radius of curvature B of the annular first curved portion (5) satisfies 0.1 mm≤B≤2 mm.
Disclosed in the present application are a liquid cooling structure and a battery pack. The liquid cooling structure comprises: a support plate, the support plate being used for supporting battery cells; and a vertical plate vertically arranged with the support plate, the vertical plate comprising a body and a plurality of telescopic ribs arranged in the body. A liquid cooling flow channel allowing a liquid coolant to circulate is formed in the body, the plurality of telescopic ribs are arranged in the liquid cooling flow channel at intervals, and each telescopic rib is connected between two opposite side walls of the liquid cooling flow channel so as to divide the liquid cooling flow channel into a plurality of sub-flow channels.
H01M 10/6557 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur disposés entre les éléments
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
Provided is a battery pack including at least two layers of battery modules and a liquid cooling assembly. A liquid cooling assembly includes a first plate, a second plate, and a third plate, wherein the second plate is located between the first plate and the third plate, a first cooling flow channel is formed between the first plate and the second plate, a second cooling flow channel is formed between the second plate and the third plate, and communication or discommunication between the first cooling flow channel and the second cooling flow channel is formed between the second plate and the third plate.
H01M 10/6556 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur
H01M 10/613 - Refroidissement ou maintien du froid
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 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
A liquid cooling structure and a battery pack are disclosed in the present disclosure. The liquid cooling structure includes: a support plate, configured to support cells; and a vertical plate, perpendicular to the support plate. The vertical plate includes a main body and a plurality of telescopic ribs provided within the main body, a liquid cooling channel configured to circulate a liquid coolant is formed in the main body, the plurality of the telescopic ribs are spaced apart in the liquid cooling channel, and each of the telescopic ribs is connected between two opposite side walls of the liquid cooling channel to separate the liquid cooling channel into a plurality of sub-channels.
H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
The present application provides a battery pack, comprising at least two layers of battery cell modules and a liquid cooling assembly. A liquid cooling assembly is arranged between every two adjacent layers of battery cell modules; the liquid cooling assembly comprises a first plate, a second plate and a third plate, the second plate being located between the first plate and the third plate, a first cooling flow channel being formed between the first plate and the second plate, a second cooling flow channel being formed between the second plate and the third plate, and the first cooling flow channel and the second cooling flow channel are communicated or not communicated.
A battery thermal management system structure and a battery pack. The battery thermal management system structure comprises a direct cooling plate (110) and a temperature control assembly, wherein a top surface of the direct cooling plate (110) is connected to bottom surfaces of battery cells (310); a liquid cooling channel (400) is provided in the direct cooling plate (110); a liquid inlet (410) and a liquid outlet (420) in communication with the liquid cooling channel (400) are provided in the direct cooling plate (110); the liquid inlet (410) and the liquid outlet (420) are disposed on the same side of the direct cooling plate (110); the temperature control assembly comprises a controller (240), a temperature sensor (210), a flow regulating valve (230) and a heating film (220); the controller (240) is in signal connection with the temperature sensor (210), the flow regulating valve (230) and the heating film (220); the temperature sensor (210) is disposed on one side of the battery cells (310); the flow regulating valve (230) is provided at the liquid inlet (410) and connected to the liquid cooling channel (400); and the heating film (220) is disposed between the direct cooling plate (110) and the battery cells (310).
A battery liquid cooling system and a battery pack. The system comprises at least two liquid cooling flow path modules. All liquid cooling flow path modules are sequentially arranged in a first direction (X). Each liquid cooling flow path module comprises a plurality of serpentine tubes (400) and a plurality of expanded-connection tubes (600), wherein all serpentine tubes (400) are arranged side by side at intervals in the first direction (X), and extend in a second direction (Y); a return flow channel extending in the direction of length of each serpentine tube (400) is provided in the serpentine tube (400); a liquid intake end and a liquid output end of each serpentine tube (400) are respectively provided at two ends of the return flow channel, and the liquid intake end and the liquid output end are located at the same end of the serpentine tube (400) in the direction of length thereof; every two adjacent serpentine tubes (400) are in communication by means of expanded connection via two expanded-connection tubes (600); a first one of the two expanded-connection tubes (600) is a liquid intake tube (610), and a second one is a liquid output tube (620); and the liquid intake tube (610) is in communication with the liquid intake end of each serpentine tube (400), and the liquid output tube (620) is in communication with the liquid output end of the serpentine tube (400).
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 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
Provided in the present application are a battery box body and a battery pack. The battery box body in the battery pack comprises a liquid cooling plate (200), a bottom protective plate (100), and a seal ring (400). The liquid cooling plate (200) has a first end face and a second end face that is opposite to the first end face. The second end face protrudes in a direction facing away from the first end face to form a first protruding end face and a second protruding end face which are connected to each other. The vertical distance between the first protruding end face and the second end face is smaller than the vertical distance between the second protruding end face and the second end face. The bottom protective plate (100) is connected to the second protruding end face, and an accommodation space is formed between the bottom protective plate and the first protruding end face. The seal ring (400) is engaged in the accommodation space.
The present application provides a cooling member and a battery pack. The cooling member comprises: a cooling bottom plate used for supporting the bottom of each battery cell; and a cooling side plate bendably connected to one side of the cooling bottom plate, used for abutting against and being in thermally conductive connection with one side of each battery cell, wherein the cooling side plate comprises a flow channel portion and a buffer portion; the flow channel portion is provided with one or more cooling flow channels, and each cooling flow channel is used for flow of a cooling medium; and the buffer portion is provided with a buffer cavity, and the buffer cavity extends in the length direction of the cooling side plate.
(1) Cell phone battery charging services; charging of electric vehicles; heating equipment installation and repair; installation, maintenance and repair of electric household appliances; installation, maintenance and repair of machinery and apparatus for the manufacture of armoring line machines; motor vehicle maintenance and repair; rental of battery chargers; rental of portable power chargers; repair of power lines; vehicle battery charging
(2) Custom assembling of graphite anode materials for others; custom manufacturing of chips, namely integrated circuits, for others; production of energy; providing material treatment information in the field of waste water treatment services and recycling of waste and trash; recycling of waste and trash; rental of batteries for mobile telephones; rental of electricity generators; rental of metal-treating machines and tools; upcycling of electric, electronic, and computer components and equipment; welding services
(3) Computer software design; computer system design; consultancy in the field of energy-saving; electronic data storage, namely, archiving business documents, personal documents and corporate documents; installation of computer software; maintenance of computer software; material testing; providing online non-downloadable software for managing and operating large format battery-based energy storage systems; research and development in the field of fast-charging batteries; research and development of new products for others; technological research in the field of renewable energy resources
A battery pack (100), comprising a casing (10), a battery module (20), reinforcing layers (30), and a fixing adhesive (40). The casing (10) is provided with an accommodating cavity (12). The battery module (20) is provided in the accommodating cavity (12). The reinforcing layers (30) are provided at a discharging end of the battery module (20), and channel holes (32) are provided on the reinforcing layers (30). The fixing adhesive (40) is filled into the accommodating cavity (12) and encapsulates the reinforcing layers (30) and the battery module (20). According to the structure of the above-described battery pack (100), production and manufacturing efficiency can be improved, costs can be reduced, and the fixing effect of the reinforcing layers (30) and the battery module (20) can further be improved.
H01M 50/298 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le câblage des blocs de batterie
15.
METHOD AND APPARATUS FOR CALIBRATING CONTACT PARAMETERS OF ELECTRODE MATERIAL, AND COMPUTER STORAGE MEDIUM
The present application discloses a method and apparatus for calibrating contact parameters of an electrode material, and a computer storage medium. The method comprises: when an axial force-displacement curve of a target pressing sheet of an electrode material meets an adaptation condition of a contact model, carrying out a discrete element simulation test on the electrode material on the basis of calibration ranges of contact parameters of the electrode material and a calibration model; and then obtaining a simulation axial force-axial strain relationship of the electrode material on the basis of a target discrete element simulation parameter of the electrode material, on the basis of the relationship, determining whether the contact parameters are successfully calibrated, and if yes, determining a calibration result of the contact parameters.
Provided in the present application are a battery cell assembly and a battery module. The battery cell assembly comprises a battery cell row, wherein the battery cell row comprises a plurality of battery cells arranged in a first direction; a first heat insulation member is provided between every two adjacent battery cells in the battery cell row; and each first heat insulation member comprises a longitudinal heat insulation portion and a transverse heat insulation portion, the longitudinal heat insulation portion extending vertically and being separately fixed to the battery cells on two sides, the transverse heat insulation portion extending horizontally and being separately fixed to the battery cells on two sides, and the transverse heat insulation portion being located at the bottom end of the battery cells.
A battery module, a battery pack, and a method of manufacturing the battery pack are provided. A bracket includes at least one middle bracket and a top bracket. The middle bracket is arranged between, any one or a combination of, the top battery cell group and the non-top battery cell group and adjacent two of the battery cell groups of the non-top battery cell group. The top bracket is arranged on a side of the top battery cell group facing away from the non-top battery cell group. Each of a side surface of the middle bracket adjacent to the battery cell groups and a side surface of the top bracket adjacent to the battery cell groups is provided with a plurality of first accommodating grooves arranged along the first direction. Each of the battery cells is fixed in a corresponding one of the first accommodating grooves.
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures pour des cellules ou des batteries, p. ex. cadres périphériques, courroies ou tiges
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/514 - Procédés pour interconnecter les batteries ou cellules adjacentes
The present application provides a battery water removal structure and a battery pack. A first mounting area and a water vapor deposition area are formed in a first housing of the battery water removal structure. The first mounting area is used for mounting a battery module, and the water vapor deposition area is provided with a second mounting area. A drying assembly is arranged in the second mounting area, to remove water vapor of the battery module. The present application can remove gaseous water in a battery case, thereby maintaining a certain drying state in the battery case, thus prolonging the service life of a battery, and reducing the thermal runaway risk of the battery.
H01M 50/24 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
A composite silicon-based negative electrode material, comprising a silicon-based material and a coating layer coating the surface of the silicon-based material. The coating layer comprises a copolymer, the copolymer comprises phosphonic acid groups and cyano groups, and the molecular weight of the copolymer is 5,000-100,000 Da.
A silicon negative electrode active material coated with an artificial SEI film, which material comprises a silicon-based material and a film that coats the surface of the silicon-based material, wherein the film comprises a copolymer, the structure of the copolymer containing a 1,3-dioxolanyl group and a sulfonyl fluoride group.
Provided in the present disclosure is a film-coated silicon-based negative electrode active material, including a silicon-based material and a film coated on surfaces of the silicon-based material, in which the film includes a copolymer, and a structure of the copolymer contains 1,3-dioxolane groups and sulfonyl fluoride groups.
Provided is a composite silicon-based negative electrode material, including a silicon-based material and a coating layer coated on a surface of the silicon-based material, in which the coating layer includes a copolymer, the copolymer contains phosphonic acid groups and cyano groups, and a molecular weight of the copolymer is 5,000-100,000 daltons.
A battery pack is provided and includes: an outer housing, defining a receiving cavity; a battery group, received in the receiving cavity; at least one reinforcing layer, disposed at a discharging end of the battery group, wherein the at least one reinforcing layer defines a plurality of channel holes; and a fixation adhesive, filled in the receiving cavity, wherein the fixation adhesive wraps the reinforcing layer and the battery group.
H01M 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures pour des cellules ou des batteries, p. ex. cadres périphériques, courroies ou tiges
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
24.
BATTERY DEHUMIDIFICATION STRUCTURE AND BATTERY PACK
A battery dehumidification structure and a battery pack are provided. The battery dehumidification structure includes a shell and a drying assembly. The shell is provided with a first mounting region and a water vapor deposition region. The first mounting region is configured to mount a battery set. The water vapor deposition region is provided with a second mounting region. The drying assembly is arranged in the second mounting region, so as to remove water vapor from the battery set.
Disclosed in the present application is a battery case, comprising: a case main body, wherein a diversion inner channel and an output pipe joint are provided on an inner support beam of the case main body, and the output pipe joint is in communication with the diversion inner channel; and a liquid cooling assembly, wherein the liquid cooling assembly comprises a first flow splitting member and a second flow splitting member, which are arranged opposite each other; the liquid cooling assembly is mounted in the case main body; the diversion inner channel runs through the space between the first flow splitting member and the second flow splitting member, and both the first flow splitting member and the second flow splitting member are in communication with the output pipe joint; in addition, the first flow splitting member guides a heat exchange medium to be conveyed from a side close to the diversion inner channel and in a diagonal direction of the first flow splitting member, and the second flow splitting member conveys from a side close to the diversion inner channel and in a diagonal direction of the second flow splitting member.
122 comprises an aryl group containing at least one amide group or an aryl group containing at least one amino group; and the molar ratio of the repeating structural unit A to the repeating structural unit B is (2:1)-(6:1).
C09J 177/06 - Polyamides dérivés de polyamines et d'acides polycarboxyliques
C09J 179/08 - PolyimidesPolyesterimidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
27.
SAFETY COATING AND PREPARATION METHOD THEREFOR, AND COMPOSITE CURRENT COLLECTOR
A safety coating and a preparation method therefor, and a composite current collector. The safety coating is mainly prepared from a phosphate material, a conductive agent, a binder, and a solvent, wherein the phosphate material is a lithium manganese iron phosphate material doped with at least one of the metals Cr, Mg, Ti, Al, Zn, W, Nb, and Zr. By controlling the addition ratio of each raw material, the adhesion between the safety coating and a current collector substrate can be increased, and the peel strength between an active material layer and the safety coating can be effectively enhanced, such that the prepared safety coating can effectively improve the safety performance of batteries without changing the material system, electrode sheet performance, and product performance; and the safety coating has little impact on energy density, can achieve good long-term cycle and high-rate discharge effects of batteries, and is suitable for promotion and application.
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
28.
BATTERY CASE, BATTERY PACK, AND METHOD FOR MANUFACTURING THE BATTERY CASE
The present disclosure discloses a battery case, which includes a case body and a liquid-cooling assembly. The case body is provided with an inner support beam. The inner support beam is provided with an inner guide passage and an output pipe connector in communication with the inner guide passage. The liquid-cooling assembly is mounted in the case body, and includes a first shunt element and a second shunt element arranged opposite to each other. The inner guide passage is arranged between the first shunt element and the second shunt element, and the first shunt element and the second shunt element are both in communication with the output pipe connector. The first shunt element guides the heat exchange medium to be transmitted along a diagonal direction thereof, while the second shunt element guides the heat exchange medium to transmit along a diagonal direction thereof.
Provided are a method and apparatus for calibrating contact parameters of electrode materials, and a computer storage medium. The method includes the following operations. A discrete element simulation test is performed on an electrode material based on a calibration model and calibration ranges of contact parameters of the electrode material when an axial force-displacement curve of a target pellet of the electrode material meets an adaption condition of the contact model; then a simulated axial pressure-axial strain relationship of the electrode material is acquired based on a target discrete element simulation parameter of the electrode material; whether the contact parameters are calibrated successfully is judged based on this relationship; and when the contact parameters are calibrated successfully, calibration results of the contact parameters are determined.
G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
This disclosure provides a structure designed to enable maintenance without risk of electric shock and a battery pack, including: a structure body provided with a low-voltage control circuit, a main circuit, and a relay; a maintenance cover installed on the structure body; and a switch connected in series with the low-voltage control circuit. The switch includes a plug and a socket, the plug and the socket are respectively equipped on the structure body and on the maintenance cover. When the plug and the socket are electrically and mechanically connected, the low-voltage control circuit is powered on, and the relay is closed and energized to activate the main circuit. When the plug and socket are electrically or mechanically disconnected, the low-voltage control circuit is cut off, and the relay is open and de-energized to cut off the main circuit.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/296 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les bornes des blocs de batterie
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
The present application relates to a battery box body and a battery system. A first accommodating chamber is defined between a support plate and a side plate assembly in the battery box body. The support plate is provided with a plurality of first through holes, the first through holes and explosion-proof valves of battery cells being arranged on an one-to-one basis. A first surface of the support plate is provided with a first thermal insulation layer, the first thermal insulation layer sealing each first through hole. A bottom plate is arranged to be spaced apart from the support plate, the bottom plate, the support plate and the side plate assembly defining a pressure relief chamber.
A cold start system and method and an electric vehicle. The cold start system (100) comprises a main energy supply module (110), a conversion module (120), a pulse module (130), and a start-up energy supply module (140). The main energy supply module (110) is configured to provide a first electric signal; the conversion module (120) is electrically connected to the main energy supply module (110) and is configured to convert the first electric signal into a second electric signal, a voltage value of the second electric signal being less than a voltage value of the first electric signal; the pulse module (130) is electrically connected to the conversion module (120) and is configured to convert the second electric signal into a pulse signal; and the start-up energy supply module (140) is electrically connected to the pulse module (130) and is configured to receive the pulse signal to work under the action of the pulse signal. The cold start system (100) can greatly improve the cold starting capability of the start-up energy supply module.
B60L 58/10 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
A battery pack and an electronic device. The battery pack (100) comprises: a case body (10) having an accommodating cavity; a locking-attaching beam (11) detachably connected to the case body (10), the locking-attaching beam (11) dividing the accommodating cavity into a module area (41) and an electrical area (42); a battery module (20) disposed within the module area (41); and a first cover (31) connected to the case body (10) and covering the module area (41), wherein a gap is provided between the locking-attaching beam (11) and the bottom of the accommodating cavity, and a wire harness connected to the battery module (20) passes below the locking-attaching beam (11) and enters the electrical area (42).
A support fixing assembly and a battery module. The support fixing assembly comprises a support (1) and a module upper cover (2). One of the support (1) and the module upper cover (2) is provided with positioning protrusions (11), the other one of the support (1) and the module upper cover (2) is provided with positioning slots (21), and the positioning protrusions (11) are inserted into the positioning slots (21); and one of the support (1) and the module upper cover (2) is provided with snaps (3) at least at two opposite sides, and the support (1) is connected to the module upper cover (2) by means of the snaps (3).
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/258 - Batteries modulairesBoîtiers pourvus de moyens d’assemblage
35.
BINDER, PREPARATION METHOD THEREOF AND LITHIUM-ION CELL
A binder, including a polyamide polymer containing repeating structural units A shown in formula (I) and repeating structural units B shown in formula (II), in which R1 is an aryl group not containing amide groups and amino groups, R2 includes an aryl group containing at least one amide groups or at least one amino groups, and a mole ratio of the repeating structural units A to the repeating structural units B is (2:1) to (6:1).
C08G 69/32 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques à partir de diamines aromatiques et d'acides aromatiques dicarboxyliques avec des groupes amino et carboxylique liés tous deux aromatiquement
C08G 69/40 - Polyamides contenant de l'oxygène sous forme de groupes éther
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
36.
CIRCUIT FOR BATTERY MANAGEMENT SYSTEM, AND BATTERY SYSTEM
The present application relates to a circuit for a battery management system, and a battery system. The circuit comprises: a processing chip, which is configured to control, when a battery pack requires charging, an auxiliary driving module to amplify a driving current; and a charging driving module, which is configured to turn on a charging path between a battery connection interface and an external connection interface, driven by an amplified driving current, wherein the processing chip is further configured to control, when the battery pack requires discharging, a discharging driving module to turn on a discharging path between the battery connection interface and the external connection interface.
A threaded connecting member (100), comprising a threaded rod (10) and a flange (20). The threaded rod is used for being in threaded connection with a member to be connected; the flange is provided with a pressing surface (21), and one end of the threaded rod is connected to the pressing surface; the pressing surface is used for pressing on the member to be connected, an anti-scraping arc surface (22) is provided around the periphery of the pressing surface, and the anti-scraping arc surface is tangentially arranged with the pressing surface. The threaded connecting member can solve the technical problem that cutting-induced burrs and debris are easily generated on members to be connected. The present invention further relates to a battery pack.
F16B 35/04 - Boulons filetésBoulons d'ancrageGoujons filetésVisVis de pression avec tête ou axe de forme particulière permettant de fixer le boulon sur ou dans un objet
A battery box and a battery system are provided. A support plate and a side plate assembly in the battery box are enclosed to form a first accommodating cavity. The support plate is provided with a plurality of first through holes, and each of the first through holes is disposed in one-to-one correspondence with the explosion-proof valve of each of the single-cells. A first surface of the support plate is provided with a first heat insulating layer, and the first heat insulating layer seals each of the first through holes. A bottom plate and the support plate are spaced apart, and the bottom plate, the support plate and the side plate assembly are enclosed to form a pressure relief cavity.
H01M 10/658 - Moyens de commande de la température associés de façon structurelle avec les éléments par isolation ou protection thermique
H01M 50/143 - Boîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes ignifugesBoîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes à l'épreuve des explosions
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
A battery pack (100) and a battery module. The battery pack (100) comprises a case (1), a battery cell module (3) and a connecting assembly (4), wherein at least two cross beams (2) are provided in the case (1), two adjacent cross beams (2) are spaced apart from each other to form an accommodating space (20), and the battery cell module (3) is arranged in the accommodating space (20). At least one connecting assembly (4) is provided, and the connecting assembly (4) is configured to connect the two cross beams (2) which form the accommodating space (20), so as to restrict the deformation of the two cross beams (2) in directions away from each other.
A current collecting needle, a cover plate assembly, and a battery, relating to the technical field of batteries. The current collecting needle comprises a body, wherein the peripheral surface of the body is provided with grooves. By providing the peripheral surface of the body with the grooves, the space occupied by the current collecting needle in the battery can be controlled, and the outer surface area of the current collecting needle can also be increased, such that the contact area between the current collecting needle and a positive electrode can be increased, thereby increasing the current collecting area of the current collecting needle.
H01M 50/152 - Couvercles caractérisés par leur forme pour des cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/179 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers adaptées à la forme des cellules pour des cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
41.
CIRCUIT FOR BATTERY MANAGEMENT SYSTEM (BMS) AND BATTERY SYSTEM
A circuit for battery management system (BMS) and a battery system are disclosed. The circuit includes: a processing chip configured for controlling the auxiliary driver to amplify a driving current in response to the battery pack requiring being charged; a charging driver configured for conducting a charging path between the battery connection interface and the external connection interface to charge the battery pack, under driving of the amplified driving current; the processing chip is further configured for controlling the discharging driver to conduct a discharging path between the battery connection interface and the external connection interface, in response to the battery pack requiring being discharged.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
42.
CURRENT COLLECTION PIN, COVER ASSEMBLY, AND BATTERY CELL
The present disclosure provides a current collection pin, a cover assembly, and a battery cell. The battery cell includes the cover assembly. The cover assembly includes a cover plate provided with a mounting hole, a pole inserted through the mounting hole and connected to the cover plate through an insulating seal, and the current collection pin. The current collection pin includes a body, and a slot body is provided on an outer peripheral surface of the body. An end of the body is connected to the pole.
H01M 50/172 - Dispositions pour introduire des connecteurs électriques dans ou à travers des boîtiers
H01M 50/188 - Éléments de scellement caractérisés par la position des éléments de scellement les éléments de scellement étant arrangés entre le couvercle et la borne
H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie
43.
NEGATIVE ELECTRODE SHEET, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed in the present application are a negative electrode sheet, and a preparation method therefor and the use thereof. The negative electrode sheet comprises a current collector and a composite active substance layer arranged on at least one surface of the current collector, wherein the composite active substance layer comprises a first active substance layer and a second active substance layer, which are sequentially arranged on the surface of the current collector, with the second active substance layer being arranged on the surface, away from the current collector, of the first active substance layer. The first active substance layer comprises a first binder, and the first binder comprises a low-swelling binder; and the second active substance layer comprises a second binder, and the second binder comprises at least one of a high-swelling binder and an acrylic acid derivative multipolymer, wherein the volume swelling ratio of the low-swelling binder is 25-40%, and the volume swelling ratio of the high-swelling binder is 60-85%.
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
44.
FAST-CHARGING NEGATIVE ELECTRODE SHEET, LITHIUM-ION BATTERY AND ELECTRIC DEVICE
Provided in the present application are a fast-charging negative electrode sheet, a lithium-ion battery and an electric device. A negative electrode active material in a negative electrode material layer of the fast-charging negative electrode sheet comprises a silicon-based material and a carbon-based material. On the basis that the mass of the negative electrode active material is 100%, the mass fraction of the silicon-based material in the negative electrode active material is 70-99.5 wt%, and the mass fraction of the carbon-based material is 0.5-30 wt%. The negative electrode active material in the negative electrode material layer of the fast-charging negative electrode sheet comprises the silicon-based material and the carbon-based material, and the silicon-based material is the main component of the negative electrode active material, such that the negative electrode material layer has a relatively low surface density while it is ensured that the negative electrode material layer has a relatively high gram volume and fast-charging performance, and a lithium-ion battery prepared by using the fast-charging negative electrode sheet in cooperation with the positive electrode sheet having a relatively high surface density has a relatively high energy density and also can achieve high-rate charging. The fast-charging negative electrode sheet also has the advantages of a relatively low production cost and a simple production process.
H01M 4/13 - Électrodes pour accumulateurs à électrolyte non aqueux, p. ex. pour accumulateurs au lithiumLeurs procédés de fabrication
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
45.
THICK-ELECTRODE POSITIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND PRIMARY BATTERY
Provided in the present application are a thick-electrode positive electrode sheet and a preparation method therefor, and a primary battery. The method comprises: firstly, mixing a positive electrode active substance, an electrically conductive agent and a binder resin, so as to obtain a mixed material; subjecting the mixed material to a fibration treatment, so as to obtain a fiberized mixed material; then subjecting the fiberized mixed material and a granulating agent to a granulation treatment, so as to obtain a precursor material; and finally, subjecting the precursor material to a rolling film-forming treatment, so as to obtain the thick-electrode positive electrode sheet.
The present disclosure provides a cover assembly and a battery cell. The battery cell includes the cover assembly. The cover assembly includes a current collection pin, a cover plate provided with a mounting hole, a pole inserted through the mounting hole and connected to the cover plate through an insulating seal, and a positioning bracket sleeved on at least one the pole and the current collection pin. The current collection pin includes a body, and a slot body is provided on an outer peripheral surface of the body. One end of the body is connected to the pole.
H01M 50/186 - Éléments de scellement caractérisés par la position des éléments de scellement
H01M 50/474 - Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmesLeurs procédés de fabrication caractérisés par leur position dans les cellules
H01M 50/477 - Éléments d'espacement à l'intérieur des cellules autres que les séparateurs, les membranes ou les diaphragmesLeurs procédés de fabrication caractérisés par leur forme
H01M 50/533 - Connexions d’électrodes dans un boîtier de batterie caractérisées par la forme des conducteurs ou des languettes
H01M 50/559 - Bornes adaptées aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
The present application discloses a lithium ion battery formation and capacity grading method, comprising the following steps: formation: charging a lithium ion battery until the SOC is greater than or equal to 100%, the charging process at least comprising a first stage, a second stage, a third stage, a fourth stage and a fifth stage, and pressure being applied to two opposite surfaces of the lithium ion battery in each stage, wherein the pressure applied in the first stage is 0.1-0.3 MPa, the pressure applied in the second stage is 0.3-0.5 MPa, the pressure applied in the third stage is 0.8-1.2 MPa, the pressure applied in the fourth stage is 0.3-0.5 MPa, and the pressure applied in the fifth stage is 0.8-1.2 MPa; and capacity grading: fixing the formed lithium ion battery, applying pressure of 50-100 kg onto the two opposite surfaces of the lithium ion battery, and then carrying out capacity grading cycle.
The present application provides a pressure relief liquid cooling assembly and a battery pack. The pressure relief liquid cooling assembly comprises a first liquid cooling part and a second liquid cooling part arranged opposite the first liquid cooling part in a first direction, wherein a first coolant flow channel is provided in the first liquid cooling part, a second coolant flow channel is provided in the second liquid cooling part, a gap is provided between the second liquid cooling part and the first liquid cooling part to form a first pressure relief channel, a first pressure relief hole is formed in the first liquid cooling part, the first pressure relief hole passes through the first liquid cooling part in the first direction and is in communication with the first pressure relief channel, and the first pressure relief hole is arranged to be in communication with rupture valves of at least some of battery cells in a battery module. In the present application, the first pressure relief channel is formed by directly joining the first liquid cooling part and the second liquid cooling part, such that pressure relief and liquid cooling are integrated, which eliminates the need to separately provide the first pressure relief channel, thereby contributing to a reduction in the overall spatial footprint of the pressure relief liquid cooling assembly.
The present application provides an integrated busbar, and a bracket of the integrated busbar, and a battery module of the integrated busbar. The integrated busbar includes a bus assembly and an integrated busbar bracket. The bus assembly is configured to be electrically connected to a plurality of battery cells. The integrated busbar bracket includes a mounting bracket and an installation bracket configured as split structures. Two ends of the bus assembly are installed on the mounting bracket. A middle part of the bus assembly is installed on the installation bracket.
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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
A battery assembly structure and a battery module. A support (100) is provided with a first through hole group (102). An electric connection board (200) is arranged on the support (100); a first board surface is provided with a first connection terminal group (202), and a second board surface is provided with a second connection terminal group (204), the first connection terminal group (202) being connected to the second connection terminal group (204). The second connection terminal group (204) is arranged corresponding to the first through hole group (102). An electrical load or an external power supply can be connected to the second connection terminal group (204) by means of the first through hole group (102).
The present application provides a battery pack cover body structure, and a battery pack. A substrate is used for covering a box body, the substrate and the box body defining a containing cavity, and the containing cavity being used for containing multiple single battery cells and foamed adhesive arranged along multiple adhesive filling tracks. An exhaust part is disposed adjacent to a middle part of the substrate, the exhaust part being provided with multiple exhaust holes, and at least one exhaust hole being formed between every two adjacent adhesive filling tracks, so that gas is discharged in a timely manner during the entire foam filling and sealing process of the battery pack, and residual bubbles in the box cover are prevented.
H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
H01M 50/24 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/233 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p. ex. dimensions
H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
A battery module (100) and a battery pack. The battery module (100) comprises a mounting frame (110), a battery cell assembly (120) and a connection assembly (130). The battery cell assembly (120) comprises two battery cell groups (121) distributed in a first direction (X) in the mounting frame (110), each battery cell group (121) comprising a plurality of battery cell units (1210) successively distributed in a second direction (Y), each battery cell unit (1210) comprising two battery cells (1211) successively distributed in the second direction (Y), and each battery cell (1211) comprising a first terminal (1212) and a second terminal (1213) distributed in the first direction (X); the first terminals (1212) of two adjacent battery cells (1211) distributed in the first direction (X) are close to each other; the first terminals (1212) of two adjacent battery cells (1211) distributed in the first direction (X) are connected by means of a first connection member (131) of the connection assembly (130); and the second terminals (1213) of the two battery cells (1211) of each battery cell unit (1210) are connected by means of a second connection member (132) of the connection assembly (130).
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
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 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
H01R 25/16 - Rails ou barres omnibus pourvus de plusieurs points de connexion pour pièces complémentaires
A battery cell, a battery module and a battery pack. The battery cell comprises a battery casing (100) and an electrode assembly, wherein the battery casing (100) is provided with an accommodating cavity (110); the electrode assembly is arranged in the accommodating cavity (110); the electrode assembly comprises tabs (210) and electrode sheets (220); each tab (210) comprising a first connecting strip (211) and a second connecting strip (212); a first end of the first connecting strip (211) is connected to a second end of the second connecting strip (212), a second end of the first connecting strip (211) is welded to one electrode sheet (220), and the first connecting strip (211) and the electrode sheet (220) are made of the same material; and a first end of the second connecting strip (212) is welded to the battery casing (100), and the second connecting strip (212) and the battery casing (100) are made of the same material, thereby improving the welding effect between the tabs and the electrode sheets and the welding effect between the tabs and the battery casing.
Disclosed in the present disclosure is a method of formation and capacity grading for lithium-ion batteries, including the following steps: Formation: charging the SOC of the lithium-ion battery to be greater than or equal to 100%, wherein a charging process comprises at least a first stage, a second stage, a third stage, a fourth stage, and a fifth stage; and applying pressure to two opposite surfaces of the lithium-ion battery at each stage, wherein the pressure applied at the first stage is 0.1-0.3 Mpa, the pressure applied at the second stage is 0.3-0.5 Mpa, the pressure applied at the third stage is 0.8-1.2 Mpa, the pressure applied at the fourth stage is 0.3-0.5 Mpa, and the pressure applied at the fifth stage is 0.8-1.2 Mpa. Capacity Grading: fixing the lithium-ion battery after formation; applying pressure to 50-100 kg on the two opposite surfaces of the lithium-ion battery; and performing a capacity grading cycle.
A battery case includes a case body and a loading assembly arranged at an exterior of the case body. The case body includes a frame, the loading assembly includes a first loading plate, the first loading plate is arranged with a first connection portion, the first connection portion is disposed at a lower side of the frame; the first connection portion is fixed, by resistance-welding, to a bottom surface of the frame; the frame defines a cavity therein; a top surface of the frame defines a first welding hole communicated with the cavity; the first welding hole leaves a space for a resistance welding needle; a sealing adhesive layer is arranged around a welding position where the first connection portion is welded to the frame.
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 50/231 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le matériau des boîtiers ou des bâtis ayant une structure en couches
H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
56.
CURRENT COLLECTOR SYSTEM AND LIQUID COOLING SYSTEM
The present disclosure relates to a current collector system and a liquid colling system, including at least two current collectors. Each of the current collectors includes a current collector housing, provided with a liquid cavity for liquid circulation, a side of the liquid cavity being provided with an open current collector connection port; a current collector primary flow channel, penetrating through the current collector housing, in which the current collector primary flow channel of each of the at least two current collectors is connected in series with each other; and a flow hole, provided between the liquid cavity and the current collector primary flow channel to allow the current collector primary flow channel to be in communication with the liquid cavity. A diameter of the flow hole of each of the at least two current collectors is not equal.
Disclosed are a pressure relief structure for a double-layer battery and a battery pack, including an upper cell module having a plurality of upper cell pressure relief openings, a lower cell module having a plurality of lower cell pressure relief openings, a pressure relief layer clamped between the upper cell module and the lower cell module, in which a pressure relief chamber, in communication with the plurality of upper cell pressure relief openings and the plurality of lower cell pressure relief openings, is formed within the pressure relief layer, and the plurality of upper cell pressure relief openings and the plurality of lower cell pressure relief openings are staggered in position.
H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
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
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 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures pour des cellules ou des batteries, p. ex. cadres périphériques, courroies ou tiges
A cover structure and a battery pack employing the cover structure are provided. The battery pack further includes a plurality of cells and a box. The cover structure includes a substrate and an exhaust portion. The substrate is configured to cover the box. The substrate and the box together form an accommodating cavity to accommodate the plurality of cells and foam adhesive arranged along a plurality of adhesive injection tracks preset in the accommodating cavity. The exhaust portion is provided on a middle portion of the substrate. The exhaust portion is provided with a plurality of exhaust holes. An area between two adjacent adhesive injection tracks corresponds to at least one of the exhaust holes.
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/233 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p. ex. dimensions
59.
SIGNAL ACQUISITION ASSEMBLY OF BATTERY CELL AND BATTERY PACK
A signal acquisition assembly (1) of a battery cell (20) and a battery pack. The signal acquisition assembly (1) comprises a frame (10), a circuit board (11), a plurality of pin-type electrical connectors (12), and a plurality of signal acquisition lines (13); the frame (10) has a first side surface (101) and a second side surface (102) opposite to each other in a first direction; the circuit board (11) is provided with a plurality of insertion structures (110), each pin-type electrical connector (12) comprises a first connection portion (1210) and a pin-type insertion portion (1220), the pin-type insertion portions (1220) of the plurality of pin-type electrical connectors (12) are inserted into the plurality of insertion structures (110) in one-to-one correspondence, and the pin-type insertion portions (1220) are electrically connected to a battery management circuit (113) carried by the circuit board (11); second connection portions (130) of the plurality of signal acquisition lines (13) are correspondingly connected to the first connection portions (1210) of the plurality of pin-type electrical connectors (12); and an acquisition portion (131) of each signal acquisition line (13) is configured to acquire a signal of the battery cell (20).
H01M 50/569 - Détails de construction des connexions conductrices de courant pour détecter les conditions à l'intérieur des cellules ou des batteries, p. ex. détails des bornes de détection de tension
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
A CTP battery case and a CTP battery system. The CTP battery case comprises a bottom plate (1) and a plurality of side plates (2), wherein the side plates (2) are connected to the bottom plate (1), and adjacent side plates (2) are connected to each other to form a mounting space (3); an adhesive bonding groove (4) is formed in the side of the bottom plate (1) close to the mounting space (3); an insulating layer (5) covers the adhesive bonding groove (4), and the insulating layer (5) is provided with a through hole (6) adapted to an opening of the adhesive bonding groove (4); an adhesive bonding member (7) is provided in the adhesive bonding groove (4), and the adhesive bonding member (7) passes through the through hole (6); the insulating layer (5) isolates the bottom plate (1) from a battery cell (10); the adhesive bonding member (7) is bonded to the battery cell (10); and the adhesive bonding member (7) is a structural member made of an insulating material.
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 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures pour des cellules ou des batteries, p. ex. cadres périphériques, courroies ou tiges
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
The present application discloses a battery pack, comprises a case, the case being provided with an accommodating cavity having one open side; a cover, the cover covering the open side of the case to seal the accommodating cavity; a battery cell group, the battery cell group being arranged in the accommodating cavity, and electrodes of the battery cell group facing the cover; and a busbar, the busbar being arranged between the battery cell group and the cover, a pressure relief space is reserved between the busbar and the cover, wherein insulating cooling oil is injected into the accommodating cavity, and the electrodes of the battery cell group and the busbar are immersed in the insulating cooling oil.
Disclosed in the present application is a liquid cooling system with direct cooling connection, comprising: a liquid cooling plate assembly, which comprises two or more liquid cooling plate branches, each of the liquid cooling plate branches being provided with a quick plug-in socket; and a direct-cooling type liquid cooling pipeline, which comprises an L-shaped quick plug-in connector, at least one T-shaped quick plug-in connector and a hydraulic connector which are sequentially connected by means of a communication pipe, the quick plug-in socket of each of the liquid cooling plate branches being plugged with the L-shaped quick plug-in connector or the T-shaped quick plug-in connector so as to connect the liquid cooling plate branch to the direct-cooling type liquid cooling pipeline.
A bottom protective plate and a battery case. The bottom protective plate comprises an upper skin (10), a lower skin (20), and an interlayer (30). The lower skin (20) and the upper skin (10) are spaced apart. The interlayer (30) is sandwiched between the upper skin (10) and the lower skin (20). The thickness of the upper skin (10) is greater than the thickness of the lower skin (20).
B32B 15/08 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique
B32B 9/00 - Produits stratifiés composés essentiellement d'une substance particulière non couverte par les groupes
B32B 17/02 - Produits stratifiés composés essentiellement d'une feuille de verre ou de fibres de verre, de scorie ou d'une substance similaire sous forme de fibres ou filaments
B32B 17/06 - Produits stratifiés composés essentiellement d'une feuille de verre ou de fibres de verre, de scorie ou d'une substance similaire comprenant du verre comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
B32B 17/12 - Produits stratifiés composés essentiellement d'une feuille de verre ou de fibres de verre, de scorie ou d'une substance similaire adjacentes à une couche fibreuse ou filamenteuse
B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre
B32B 27/02 - Produits stratifiés composés essentiellement de résine synthétique sous forme de fibres ou de filaments
B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
B32B 3/12 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche discontinue, c.-à-d. soit continue et percée de trous, soit réellement constituée d'éléments individuels caractérisés par une couche d'alvéoles disposées régulièrement, soit formant corps unique dans un tout, soit structurées individuellement ou par assemblage de bandes indépendantes, p. ex. structures en nids d'abeilles
B32B 37/10 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par la technique de pressage, p. ex. faisant usage de l'action directe du vide ou d'un fluide sous pression
B32B 37/12 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par l'usage d'adhésifs
B32B 38/00 - Opérations auxiliaires liées aux procédés de stratification
H01M 50/231 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le matériau des boîtiers ou des bâtis ayant une structure en couches
A battery pack (100), comprising: a housing (10) provided with an accommodating space (101); a battery module (20) arranged in the accommodating space (101); a BMS module (30) spaced apart from the battery module (20); and an isolation plate (40) provided between the battery module (20) and the BMS module (30) and sealedly connected to the housing (10) so as to isolate the battery module (20) from the BMS module (30).
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
65.
BATTERY MODULE INFORMATION COLLECTION CONNECTION SYSTEM AND ELECTRIC DEVICE
A battery module information collection connection system and an electric device. The system comprises an insulating support (100), flexible printed circuits (200), a battery control member (300), a first conductive portion (400), collection members (500) and a battery module (600), wherein the insulating support (100) is arranged on the battery module (600); the flexible printed circuits (200) include first flexible printed circuits (210) and a second flexible printed circuit (220), the first flexible printed circuits (210) being arranged on the side of the insulating support (100) facing away from the battery module (600), and the second flexible printed circuit (220) being arranged on the side of the insulating support (100) facing towards the battery module (600); the flexible printed circuits (200) are connected to the battery control member (300), and battery cells are connected to the flexible printed circuits (200) by means of the collection members (500); the battery control member (300) is connected to the battery module (600); and the first conductive portion (400) is arranged on the side of the insulating support (100) facing away from the second flexible printed circuit (220) and corresponds to the second flexible printed circuit (220) in terms of position, with one end of the first conductive portion (400) being connected to the battery control member (300), the other end of the first conductive portion (400) being connected to a high-voltage interface, and the high-voltage interface being communicatively connected to the battery control member (300).
H01M 50/569 - Détails de construction des connexions conductrices de courant pour détecter les conditions à l'intérieur des cellules ou des batteries, p. ex. détails des bornes de détection de tension
H01M 50/519 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant des circuits imprimés
A battery pack is disclosed according to the present disclosure. The battery pack includes: a housing, a cover, a cell set and a bus bar. The housing includes a receiving cavity with an opening on a side of the housing. The cover is provided over the side of the housing with the opening to close the receiving cavity. The cell set is provided in the receiving cavity, and electrodes of the cell set face the cover. The bus bar is provided between the cell set and the cover, and a pressure relief space is reserved between the bus bar and the cover. The receiving cavity is filled with insulating cooling oil, and the electrodes of the cell set and the bus bar are submerged in the insulating cooling oil.
H01M 10/658 - Moyens de commande de la température associés de façon structurelle avec les éléments par isolation ou protection thermique
H01M 50/143 - Boîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes ignifugesBoîtiers primairesFourreaux ou enveloppes pour protéger contre les dommages causés par des facteurs externes à l'épreuve des explosions
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures pour des cellules ou des batteries, p. ex. cadres périphériques, courroies ou tiges
H01M 50/505 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant une barre omnibus unique
H01M 50/514 - Procédés pour interconnecter les batteries ou cellules adjacentes
Disclosed is a battery pack, including a cell contact system, CCS, assembly; a battery box, in which the CCS assembly is mounted and fixed in the battery box; and a sealant component, in which the sealant component is provided between the battery box and the CCS assembly, and the sealant component is extended along a peripheral direction of the CCS assembly to seal an assembly clearance between the CCS assembly and the battery box.
Provided are a signal acquisition assembly of a cell and a battery pack. The signal acquisition assembly includes a support, a circuit board, multiple pin-type electrical connectors, and multiple signal acquisition lines. The support includes a first side surface and a second side surface opposite to each other in a first direction. The circuit board is provided with multiple plug-in structures. A pin-type electrical connector has a first connection portion and a pin-type plug-in portion. Pin-type plug-in portions of the pin-type electrical connectors are plugged in the plug-in structures in one-to-one correspondence. The pin-type plug-in portion is electrically connected to a battery management circuit carried by the circuit board. Second connection portions of the signal acquisition lines are correspondingly connected to first connection portions of the multiple pin-type electrical connectors. The acquisition portion of the signal acquisition line is configured to acquire the signal of the cell.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
G01R 31/364 - Connexions pour bornes de batteries, munies de dispositions de mesure intégrées
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/284 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports comprenant l’insertion de cartes de circuits, p. ex. de cartes de circuits imprimés
H01M 50/505 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant une barre omnibus unique
A battery pack includes a housing, a battery module, a battery management system (BMS) module, and an isolation plate disposed between the battery module and the BMS module. An accommodating space is formed in the housing. The battery module is disposed within the accommodating space. The isolation plate is hermetically connected to the housing to isolate the battery module from the BMS module.
H01M 50/284 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports comprenant l’insertion de cartes de circuits, p. ex. de cartes de circuits imprimés
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/298 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le câblage des blocs de batterie
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
Provided are a battery box and a battery pack. The battery box includes a box body, a bottom guard plate, a bracket, and a suction disc. The box body is provided with an accommodation cavity. One side of the box body along the first direction is provided with an opening communicating with the accommodation cavity. The bottom guard plate is detachably connected to the opening. The bracket is mounted on the cavity wall of the accommodation cavity. The bracket and the bottom guard plate are spaced apart to form a pressure relief channel. The pressure relief channel is configured to relieve a thermal runaway gas of a cell assembly on the bracket. One side of the bracket facing the bottom guard plate is provided with the suction disc. The suction disc abuts against the bottom guard plate.
A battery module and a battery pack are provided. The battery pack includes a mounting frame, a battery cell assembly, and a connecting assembly. The battery cell assembly includes two battery cell groups distributed inside the mounting frame along a first direction. Each of the two battery cell groups includes a plurality of battery cell units distributed along a second direction. Each of the battery cell units includes two battery cells distributed along the second direction. Each of the battery cells includes a first pole post and a second pole post distributed along the first direction. First pole posts of adjacent two of the battery cells distributed along the first direction are connected by a corresponding one of first connecting members. Second pole posts of the two battery cells of each of the battery cell units are connected by a corresponding one of second connecting members.
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 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
H01M 50/298 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par le câblage des blocs de batterie
A battery box, comprising a housing (1) and mounting assemblies (2). The housing (1) comprises a frame (11). Each mounting assembly (2) comprises a first mounting plate (21), a first connecting portion (211) is provided at one end of the first mounting plate (21), and the first connecting portion (211) is located on the lower side of the frame (11) and is welded to a bottom surface (110) of the frame (11) by means of electric resistance welding. Cavities (114) are formed in the frame (11), first welding holes (1121) communicated with the cavities (114) are formed in the top surface of the frame (11), the first welding holes (1121) are used for providing clearance for electric resistance welding pins, and a sealant layer (8) is provided around the welded position between each first connecting portion (211) and the frame (11).
A current collector system and a liquid cooling system, the current collector system comprising at least two current collectors; each current collector comprises: a current collector housing (1) which is internally provided with a liquid cavity (11) for liquid circulation, one side of the liquid cavity (11) being provided with an open current collector connection port (12); and a current collector main flow channel (2) which passes through the current collector housing (1), the current collector main flow channels (2) of the at least two current collectors being connected in series; a flow hole (3) is provided between the liquid cavity (11) and the current collector main flow channel (2), such that the current collector main flow channel (2) is in communication with the liquid cavity (11); the aperture sizes of the flow holes (3) of the at least two current collectors are different.
A snap-fitting structure for a cover plate and a battery cell support, and a battery module. The snap-fitting structure comprises a first member (1) and a second member (2), wherein the first member (1) is provided with a snap-fitting hole (11), the snap-fitting hole (11) comprising a first hole portion (111), a communication portion (113) and a second hole portion (112), which are arranged in sequence and are in communication with each other, and the snap-fitting hole (11) being constricted at the communication portion (113); and the second member (2) comprises a base (21), and a first snap-fastener (22) and a second snap-fastener (23), which are arranged on the surface of the base (21), the first snap-fastener (22) being snap-fitted into the first hole portion (111), and the second snap-fastener (23) being snap-fitted into the second hole portion (112).
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
77 comprises a fluorine atom. In the electrolyte, by introducing two functional additives having a specific structure, and under the combined use of the two functional additives, stable growth of an interface SEI film of a negative electrode, especially a silicon negative electrode, can be promoted, thereby improving the interface stability of the negative electrode; in addition, gas production of a positive electrode can also be further reduced, thereby optimizing the interface stability of the positive electrode. Therefore, the electrolyte can further improve the electrochemical performance, such as the cycle performance and rate capability, of the battery.
H01M 10/0567 - Matériaux liquides caracterisés par les additifs
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
A battery pack is disclosed. The battery pack includes a battery module and a battery management assembly connected to the battery module. The battery management assembly includes a printed circuit board, a positive busbar, a negative busbar, and a flexible circuit board. One end of the positive busbar and one end of the negative busbar are connected to the battery module, respectively. Another end of the positive busbar and another end of the negative busbar are connected to the printed circuit board, respectively. The flexible circuit board is connected to the positive busbar, the negative busbar, the battery module and the printed circuit board, respectively.
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/213 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules ayant une section transversale courbée, p. ex. ronde ou elliptique
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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 50/519 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant des circuits imprimés
H01M 50/569 - Détails de construction des connexions conductrices de courant pour détecter les conditions à l'intérieur des cellules ou des batteries, p. ex. détails des bornes de détection de tension
77.
BATTERY DATA PROCESSING METHOD, ELECTRONIC DEVICE AND STORAGE MEDIUM
A method includes: obtaining preset life decay curves of a target battery under multiple different life decay types; extracting one curve segment from a respective one of the preset life decay curves; splicing multiple curve segments end-to-end to obtain a predicted life decay curve of the target battery; and determining a predicted life of the target battery based on the predicted life decay curve.
The present application provides an immersion-type liquid-cooled energy storage battery pack. The immersion-type liquid-cooled energy storage battery pack comprises an enclosure structure (300), a first liquid-cooling plate (100) and a second liquid-cooling plate (200), wherein the enclosure structure (300) has an accommodating space (330) for accommodating a battery (2000), and two ends of the accommodating space (330) in a first direction are provided with openings; the first liquid-cooling plate (100) and the second liquid-cooling plate (200) block the openings respectively; the first liquid-cooling plate (100) has a first liquid-cooling flow channel (120) and a first liquid inlet (130) and a first liquid outlet (140) in communication with the first liquid-cooling flow channel (120), the first liquid outlet (140) being in communication with the accommodating space (330); and the second liquid-cooling plate (200) has a second liquid-cooling flow channel (220) and a second liquid inlet (230) and a second liquid outlet (240) in communication with the second liquid-cooling flow channel (220), the second liquid inlet (230) being in communication with the accommodating space (330). The immersion-type liquid-cooled energy storage battery pack is provided with a circulating immersion flow channel for circulating flow of an immersion liquid, wherein the circulating immersion flow channel comprises the first liquid inlet (130), the first liquid-cooling flow channel (120), the first liquid outlet (140), the accommodating space (330), the second liquid inlet (230), the second liquid-cooling flow channel (220) and the second liquid outlet (240) in communication with one another.
The present application belongs to the technical field of batteries. Disclosed are a dry-method electrode film and a preparation method therefor, an electrode and a battery. The method of the present application comprises: mixing polytetrafluoroethylene, an active substance and an electrically conductive agent, and crushing same, so as to obtain a crushed mixture; subjecting the crushed mixture to primary airflow grinding and shearing, so as obtain a ground and sheared mixture, wherein conditions of the primary shearing comprise: the airflow temperature is -10 to 10°C, the airflow pressure is 0.7-0.9 MPa, and the rotation speed is 8000-12000 rpm; subjecting the ground and sheared mixture to secondary airflow grinding, shearing and fibration, so as to obtain a fibration material; and subjecting the fibration material to a secondary fibration treatment, so as to obtain a dry-method electrode film. The method of the present application can significantly improve the tensile strength of an electrode film, improve the liquid absorption rate of an electrode and reduce the resistivity of the electrode.
This application provides a battery box and a battery pack, and relates to the technical field of batteries. The battery box includes a box cover, a box, a diaphragm and two longitudinal beams. The box cover covers and closes the box to define a mounting cavity. The mounting cavity has two first side walls disposed oppositely. The two longitudinal beams are disposed on the two first side walls, respectively. Both ends of the diaphragm are lapped with the two longitudinal beams, respectively. The diaphragm divides the mounting cavity into a lower module mounting cavity and an upper module mounting cavity. A side of each of the two longitudinal beams close to the box cover is configured to abut against the upper battery module.
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 50/358 - Passages externes d’évacuation des gaz sur le couvercle ou sur le boîtier de batterie
H01M 50/367 - Passages internes d’évacuation des gaz dans le couvercle ou le boîtier de la batterieSystèmes d’évent à double couvercle
A bottom guard plate and battery box are provided in the present application. The bottom guard plate includes an upper skin; a lower skin spaced from the upper skin; an interlayer sandwiched between the upper skin and the lower skin. A thickness of the upper skin is greater than a thickness of the lower skin.
H01M 50/129 - Boîtiers primairesFourreaux ou enveloppes caractérisés par le matériau ayant une structure en couches comprenant au moins trois couches dont au moins deux couches de matériaux organiques uniquement
H01M 50/103 - Boîtiers primairesFourreaux ou enveloppes caractérisés par leur forme ou leur structure physique prismatique ou rectangulaire
A composite bottom guard plate, a battery and an electric device. The composite bottom guard plate comprises a first plate (1), a second plate (2) and metal plates (4), wherein the first plate (1) and the second plate (2) enclose a first accommodating cavity (10), and the first accommodating cavity (10) is filled with the metal plates (4); or the composite bottom guard plate further comprises a third plate (3) and honeycomb plates (5), wherein the second plate (2) and the third plate (3) enclose a second accommodating cavity (30), one of the metal plates (4) and the honeycomb plates (5) is accommodated in the first accommodating cavity (10), and the other of the metal plates (4) and the honeycomb plates (5) is accommodated in the second accommodating cavity (30).
Provided in the present application are a battery data processing method, an electronic device and a storage medium. The method comprises: acquiring preset lifespan attenuation curves of a target battery under a plurality of different lifespan attenuation types; intercepting a curve segment from each preset lifespan attenuation curve; splicing a plurality of curve segments end to end, so as to obtain a predicted lifespan attenuation curve of the target battery; and determining a predicted lifespan of the target battery on the basis of the predicted lifespan attenuation curve.
The present application provides a battery pack, comprising: a battery module; and a battery management assembly connected to the battery module, wherein the battery management assembly comprises a printed circuit board, a positive busbar, a negative busbar, and a flexible circuit board; one end of the positive busbar and one end of the negative busbar are connected to the battery module, and the other ends of the positive busbar and the negative busbar are connected to the printed circuit board; and the flexible circuit board is connected to the positive busbar, the negative busbar, the battery module and the printed circuit board.
H01M 50/519 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant des circuits imprimés
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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
A battery case (011) and a battery pack (001), relating to the technical field of batteries. The battery case (011) comprises a case cover (111), a case body (112), a partition plate (1131) and two longitudinal beams (114); the case cover (111) covers the case body (112) so as to define a mounting cavity; and the mounting cavity has two first side walls (1141) arranged opposite to each other. The two longitudinal beams (114) are respectively arranged on the two first side walls (1141); two ends of the partition plate (1131) are respectively in lap joint with the two longitudinal beams (114); the partition plate (1131) divides the mounting cavity into a lower-layer module mounting cavity (1123) and an upper-layer module mounting cavity (1124); and the side of the longitudinal beams (114) close to the case cover (111) is configured to abut against an upper-layer battery module (012).
H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
A projection is on the sidewall of a cooling channel. When the outer side of a liquid cooling plate is squeezed, the projection between the sidewalls of the cooling channel supports the sidewalls.
A battery tray, a battery pack, and an electric device. The battery tray comprises a base plate (1) and at least two expansion beams (2) extending in a first direction, wherein the at least two expansion beams (2) are spaced apart on the base plate (1) in a second direction, with the first direction being perpendicular to the second direction; one of the expansion beams (2) at least comprises a first expansion portion (21) and a second expansion portion (22); a first mounting area (11) is formed between the first expansion portion (21) and another expansion beam (2); a second mounting area (12) is formed between the second expansion portion (22) and another expansion beam (2); and the widths of the first expansion portion (21) and the second expansion portion (22) are not equal in the second direction, such that the lengths of the first mounting area (11) and the second mounting area (12) are not equal in the second direction. The battery tray enables the same expansion beam (2) to limit battery cell groups (4) having different numbers of battery cells, thereby improving the versatility of the battery tray. Moreover, the expansion beams (2) can resist the expansion deformation of the battery cells (40).
The present application provides a CTP battery pack and an electrical device. The CTP battery pack comprises a case and a plurality of battery cell modules; a plurality of accommodating cavities are formed in the case, and at least one battery cell module is arranged in each accommodating cavity; each battery cell module comprises a plurality of battery cells, a vapor chamber member, a first connecting member, and a second connecting member; the plurality of battery cells are arranged in a first direction, and the first connecting member, the vapor chamber member, and the second connecting member are sequentially stacked between two adjacent battery cells.
H01M 10/617 - Types de commande de la température pour réaliser l'uniformité ou une répartition désirée de la température
H01M 50/264 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
A cap structure (100, 200) and a battery. The cap structure (100, 200) comprises a cap assembly (10) and a sealing ring (20), wherein the sealing ring (20) is sleeved on the cap assembly (10). A first sealing portion (201) of the sealing ring (20) comprises a first outer wall (2011), a first inner wall (2012), a second outer wall (2013), and a second inner wall (2014). The distance between the first outer wall (2011) and a central axis is greater than the distance between the second outer wall (2013) and the central axis, and the ratio of the distance between the second outer wall (2013) and the extension line of the first outer wall (2011) to the distance between the extension line of the second inner wall (2014) to the first inner wall (2012) is 1:(1-10). The cap assembly (10) is arranged corresponding to the second inner wall (2014).
An active equalization circuit for a battery pack, and a battery management system. The active equalization circuit comprises a control module (20) and at least one equalization module (10). Each equalization module (10) is configured to be connected to one battery cell string (200) in a battery pack, and comprises: an active equalization control unit (110), which comprises (n+1) equalization switches (K1), wherein the (n+1) equalization switches (K1) are arranged in an order from a first end to a second end of the battery cell string (200); a polarity conditioning unit (120), which comprises two main circuit switches (K2), wherein odd-level equalization switches (K1) are connected to first selection ends of the main circuit switches (K2), and even-level equalization switches (K1) are connected to second selection ends of the main circuit switches (K2); and a bidirectional DC/DC converter (130), which is respectively connected to fixed connection ends of the two main circuit switches (K2). The control module (20) is respectively connected to the active equalization control unit (110), the polarity conditioning unit (120) and the bidirectional DC/DC converter (130).
A battery module includes a liquid-cooling assembly, a battery cell assembly, and a plurality of heat-conductive members. The liquid-cooling assembly includes a plurality of liquid-cooling plates extending in a first direction, each of the liquid-cooling plates including a plurality of arc-shaped portions. The battery cell assembly includes a plurality of cylindrically-shaped battery cells. Each of the heat-conductive members is disposed between a battery cell of the plurality of battery cells and a respective arc-shaped portion of the plurality of arc-shaped portions of the liquid-cooling plate for which the battery cell is disposed on a side thereof. For each of the plurality of heat-conductive members, an angle α between lines connecting a center of an adjacent battery cell and either end of the heat-conductive member satisfies: 72°≤α≤82°.
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
A battery module (1000), and a battery pack. The battery module (1000) comprises a liquid-cooling assembly (1), a battery cell assembly (2) and heat-conducting members (3), wherein the liquid-cooling assembly (1) comprises a plurality of liquid-cooling plates (11) extending in a first direction, the plurality of liquid-cooling plates (11) are arranged at intervals in a second direction intersecting the first direction, and each liquid-cooling plate (11) comprises a plurality of arc-shaped portions (11A); the battery cell assembly (2) comprises a plurality of columnar battery cells (21), and each battery cell (21) is arranged on one side of a liquid-cooling plate (11) in the second direction and is connected to a corresponding arc-shaped portion (11A); and the heat-conducting members (3) are arranged between the battery cells (21) and the arc-shaped portions (11A) and are connected to the battery cells (21) and the arc-shaped portions (11A), and an included angle between the circle center of each battery cell (21) and a connecting line of two ends of a heat-conducting member (3) is α, with α satisfying: 72°≤α≤82°.
A lithium primary battery, comprising a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein at least one side of the positive electrode that faces the negative electrode is provided with a modified layer, and/or at least one side of the separator is provided with a modified layer; and the modified layer comprises a base material layer and a carbon layer arranged on one side of the base material layer. A modified layer is provided between a positive electrode and a negative electrode, such that the pulse performance of the lithium primary battery at a high temperature is further improved, and the internal resistance of the battery is reduced.
A battery pack and a vehicle. The battery pack comprises a battery pack housing (1), a battery module (2), a BDU (4), a BMS master board (3) and a BMS slave board (5), wherein the battery pack housing (1) is internally provided with an accommodating cavity (10); the battery module (2) is placed in the accommodating cavity (10); a first electrical compartment (8) and a second electrical compartment (9) are respectively formed at two ends of the battery module (2); the BDU (4) and the BMS master board (3) are both arranged in the first electrical compartment (8), and the BDU (4) is electrically connected to the battery module (2); the BMS slave board (5) is arranged in the second electrical compartment (9), and the BMS slave board (5) is in signal communication with the BMS master board (3); and the battery module (2) comprises a plurality of battery cells (21), the plurality of battery cells (21) being arranged in a matrix and being configured to be connected in series by means of a busbar (6), and positive electrodes and negative electrodes of the battery cells (21) close to the inner side wall of the battery pack housing (1) all being arranged close to the center line of the accommodating cavity (10).
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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 50/519 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant des circuits imprimés
Provided are a battery management system and a battery pack. The battery pack includes a battery management system. The battery management system includes a first circuit board, a second circuit board, a copper bar and a fastening assembly. The first circuit board and the second circuit board are arranged at intervals and are fixed within a box body. The copper bar is located between the first circuit board and the second circuit board. The fastening assembly includes an insulating member and a first fastener. The copper bar is disposed to be attached to the first circuit board. A first end of the insulating member is connected to the second circuit board, and a second end of the insulating member supports the copper bar. The first fastener is fastenably connected to the insulating member and abuts against a side of the first circuit board away from the second circuit board
H01M 50/262 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports avec des moyens de fixation, p. ex. des serrures
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 50/284 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports comprenant l’insertion de cartes de circuits, p. ex. de cartes de circuits imprimés
Provided are a battery module and a battery pack. The battery module includes multiple battery cells, multiple first connection members and multiple second connection members. A battery cell has an end surface, and the end surface is provided with a tab. The multiple first connection members and the multiple second connection members are flexible members. A first connection member has a first connection portion, a second connection portion and a bend. Two ends of the bend are connected to the first connection portion and the second connection portion, separately. The multiple battery cells are disposed in a superimposed manner. The first connection portion is connected to tabs of two adjacent battery cells. The second connection member is connected between second connection portions of two adjacent first connection members, the first connection portion and the second connection portion are superimposed on the end surface.
H01M 50/521 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par le matériau
H01M 50/211 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules en forme de poche
H01M 50/291 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
A battery module (3) and a battery pack. The battery module comprises a plurality of battery cells (32), a plurality of first connecting members (33), and a plurality of second connecting members (34), wherein the battery cells (32) each have an end face provided with a tab (322); the first connecting member (33) and the second connecting member (34) are both flexible members, and the first connecting member (33) has a first connecting portion (331), a second connecting portion (332) and a bent portion (333), the first connecting portion (331) and the second connecting portion (332) both being in the form of a sheet, and two ends of the bent portion (333) being respectively connected to the first connecting portion (331) and the second connecting portion (332); and the plurality of battery cells (32) are stacked, the first connecting portion (331) connects the tabs (322) of two adjacent battery cells (32), the second connecting member (34) is in the form of a sheet, the second connecting member (34) connects the second connecting portions (332) of two adjacent first connecting members (33), and the second connecting member (34), the first connecting portion (331) and the second connecting portion (332) are stacked on the end face. When a battery cell (32) expands, the first connecting member (33) and the second connecting member (34) can more easily absorb the expansion of the battery cell (32) by generating deformation, thereby ensuring the stability of the connection between the battery cells (32).
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
H01M 50/505 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant une barre omnibus unique
H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs 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 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
98.
BATTERY CELL SUPPORT AND IMMERSED LIQUID-COOLED BATTERY PACK
A battery cell support and an immersed liquid-cooled battery pack. A first surface (4a) of the battery cell support is provided with a plurality of battery cell limiting recesses (41), the battery cell limiting recesses (41) being configured to accommodate battery cells (21) of a battery pack. Each battery cell limiting groove (41) is internally provided with a protruding block (42) configured to support a battery cell (21), and in a state in which an end face of the battery cell (21) abuts against the protruding block (42), an overcurrent gap (41a) is reserved between a groove bottom face of the battery cell limiting recess (41) and the end face of the battery cell (21). The battery cell support is further provided with a second surface (4b) arranged opposite the first surface (4a), the battery cell support is provided with communication holes (43) running through the first surface (4a) and the second surface (4b), the communication holes (43) are configured to be in communication with a liquid hole of a liquid-cooling plate of the battery pack, and in a state in which the battery cells (21) are accommodated in the battery cell limiting recesses (41), the communication holes (43) are in fluid communication with the overcurrent gap (41a) to ensure that a cooling liquid can flow into the battery cell limiting recesses (41), so as to implement liquid-cooling heat dissipation of the parts of the battery cells (21) that are accommodated in the battery cell limiting recesses (41), thereby ensuring the consistency of the overall temperatures of the battery cells (21), and improving the stability of the battery cells (21).
The application provides a busbar and a battery module, which relate to the technical field of battery. The busbar includes a bar part and a plurality of conductors arranged at intervals. Each of the plurality of conductors includes a fuse part and a conducting part. The fuse part has a melting point lower than a melting point of the bus bar and lower than a melting point of the conducting part. Two ends of the fuse part are respectively connected to the conducting part and the bar part. The conducting part is configured to be connected to a positive electrode or a negative electrode of a battery cell.
H01M 50/503 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie caractérisées par la forme des interconnecteurs
H01B 5/00 - Conducteurs ou corps conducteurs non isolés caractérisés par la forme
H01M 50/583 - Dispositifs ou dispositions pour l’interruption du courant en réponse au courant, p. ex. fusibles
100.
BATTERY CASE BEAM, BATTERY CASE, AND BATTERY MODULE
A battery case beam, a battery case, and a battery module, which relate to the technical field of batteries and aim to solve the technical problems of insufficient connection strength at a joint of a rolled battery case beam and possible separation. The battery case beam comprises a main body wall (7); and a first beam wall (8) connected to one end of the main body wall (7), wherein the first beam wall (8) comprises a first pressure-bearing section (81), and the first pressure-bearing section (81) is arranged opposite the main body wall (7). A second pressure-bearing section (91) and the first pressure-bearing section (81) extend toward each other, and have an overlapping portion, and the second pressure-bearing section (91) is fixedly connected to the first pressure-bearing section (81) at the overlapping portion. The requirements of light weight and strength of the battery module can be considered.
H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports 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
