The present application provides a perovskite thin film, a perovskite cell, a preparation method, an electric device and a power generation device. The thickness direction of the perovskite thin film is recorded as the longitudinal direction, the perovskite thin film has two surfaces facing away from each other in the longitudinal direction, at least one surface is a non-smooth surface provided with a plurality of grooves, and at least part of the side surface of each groove is at an inclination angle relative to the longitudinal direction.
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
The present application belongs to the technical field of batteries. Provided are a battery and an electric device. The battery comprises: a case, which has a cavity; a battery cell group, which is accommodated in the cavity and comprises a plurality of arranged battery cells; and a support plate, which is mounted in the cavity, wherein the battery cell group is mounted onto the support plate so that the support plate supports the plurality of battery cells, and the support plate is insulated from the case.
A case (100) and a preparation method therefor, a battery (5), and an electric device. The case (100) comprises a thermally conductive insulating layer (130). The thermally conductive insulating layer (130) is provided on at least part of the inner surface of the case (100). The thermal conductivity coefficient of the thermally conductive insulating layer (130) ranges from 0.03 W/mK to 10 W/mK, and the resistance of the thermally conductive insulating layer (130) at a high voltage of 1000 V ranges from 100 MΩ to 100 GΩ.
The present application provides an energy storage system, and a control method and apparatus therefor. In the control method for the energy storage system, for the energy storage system comprising a plurality of first sub-modules, when a second sub-module is configured into the energy storage system, the battery normalization scoring parameter of the second sub-module is acquired, and then on the basis of a preset score limit value, the second sub-module is controlled to be maintained at a configured state or the second sub-module is removed. The second sub-module is controlled on the basis of fully considering the battery capacity of the second sub-module, thereby achieving coordinated control for different sub-modules, fully testing the performance of a novel sub-module, and being conducive to the overall stable response of the system.
The present application provides a perovskite-based laminated solar cell, comprising a first perovskite layer and a second perovskite layer which have different band gaps. The side surface of the first perovskite layer close to the second perovskite layer is a non-smooth surface in which recessed channels are formed, and ribs are formed between at least some of adjacent recessed channels. The laminated solar cell satisfies at least one of the following features: at least some of recessed channels have different widths in at least some of depth positions; and at least some of ribs have different widths in at least some of height positions.
H10K 39/10 - Organic photovoltaic [PV] modulesArrays of single organic PV cells
H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
axy1-x-yb2-ccc, wherein 0.2≤a≤1.2, x≥0.6, y＞0, b＞0, c＞0, M comprises a high-valence cation, and Q comprises an anion. By doping a high-valence cation and an anion in a nickel-rich ternary positive electrode material, the body structure of the nickel-rich ternary positive electrode material under lithium intercalation is stabilized, side reactions, lattice oxygen evolution and transition metal dissolution are reduced, and the cycling stability, the high-temperature storage performance and the rate capability are improved. In addition, the outer surface of the positive electrode material can be further coated with a selenium-containing substance coating layer (2), a selenium-containing substance in the selenium-containing substance coating layer (2) can react with residual lithium compounds on the surface of the positive electrode material, and the remaining selenium-containing substance can be combined with lattice oxygen released in a high-delithiation state to prevent an electrolyte solution from being oxidized. Moreover, a conductive substance coating layer (3) can be further prepared on the outer surface of the selenium-containing substance coating layer (2), thereby preventing direct contact between the selenium-containing substance and the electrolyte solution, and inhibiting side reactions.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
A tab inspection method, a device and a system, relating to the technical field of battery generation. The method comprises: acquiring optical inspection data of an inspection object, wherein the inspection object has at least one tab, and during the process of the inspection object passes between a light emitting device and a light receiving device, the light receiving device samples inspection light emitted by the light generation device and measures the light intensity value of the sampled inspection light, the optical inspection data comprising a plurality of pieces of light intensity measurement data, and the light intensity measurement data comprising light intensity values and measurement times for the light intensity values; and performing tab quality inspection on the basis of the optical inspection data to obtain a tab quality inspection result.
Disclosed in the present application are a battery cell, a battery and an electrical apparatus. The battery cell comprises an electrode assembly and a casing; the electrode assembly comprises a main body part and a first tab, the first tab extending out of one end of the main body part in a first direction; the casing is provided with an accommodation cavity, the electrode assembly being arranged in the accommodation cavity; the casing is provided with a first through hole and a second through hole, the portion of the accommodation cavity located on the side of the first tab is communicated with the first through hole, and the portion of the accommodation cavity located on the side of the main body part facing away from the first tab is communicated with the second through hole, the first through hole being used for injection of an electrolyte; in the axial direction of the first through hole, both the first tab and the main body part do not overlap the first through hole. The present application can improve the cycle performance of battery cells.
A nail penetration test method and device, which can improve the nail penetration test performance. The method comprises: controlling a penetrating nail to move towards the direction where the penetrating nail is penetrated into a battery cell; and when the voltage between the penetrating nail and a first electrode terminal of the battery cell exceeds a preset voltage, continuing controlling the penetrating nail to penetrate into a predetermined depth.
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A visual inspection system and method. The visual inspection system comprises a visual verification device (100), a visual inspection device (200) and a superordinate computer (300), wherein the visual verification device (100) comprises a verification member (10) and a verification member moving device (20), the verification member moving device (20) comprises a movably mounted mounting plate (50), the mounting plate (50) can be located at a verification position on the movement range of the mounting plate (50), the verification position is within an inspection range of the visual inspection device (200), and the verification member (10) is arranged on the mounting plate (50); the visual inspection device (200) is used for acquiring an image of the verification member (10) and sending the image of the verification member (10) to the superordinate computer (300); and the superordinate computer (300) is used for determining a systematic verification result of the visual inspection device (200) on the basis of the image of the verification member (10).
1231-341-31-3 alkyl group, and a single bond. The binder can enable the slurry to have high viscosity at low solid content, is suitable for a thin coating process, can improve the surface density uniformity of the electrode sheet, and can reduce the impedance of the solid-state battery, improving the cycle stability of the solid-state battery.
Disclosed in the present disclosure are a tape sticking treatment method and a tape sticking device. The tape sticking treatment method is applied to a control apparatus in the tape sticking device, the tape sticking device further comprises a detection apparatus and a tape stripping apparatus, and the method comprises: when it is determined that tape preparation is completed, the control apparatus in the tape sticking device can acquire a detection result obtained by the detection apparatus in the tape sticking device detecting a tape segment to be sticked; and when it is determined on the basis of the detection result that said tape segment is a defective tape segment, the control apparatus in the tape sticking device can control the tape stripping apparatus in the tape sticking device to strip said tape segment, so that tape segments subsequently sticked to battery cells are qualified tape segments, and the production efficiency of the battery cells can be improved.
A battery cell, a battery and an electric device, which relate to the technical field of batteries. The battery cell comprises: a casing, which comprises a wall portion, the wall portion being provided with a first electrode lead-out member; an electrode component, which is accommodated in the casing, and comprises a body portion and a tab extending from the body portion; and a separator member, which is at least partially disposed between the first electrode lead-out member and the body portion, wherein the separator member comprises a separator plate, which is provided with a channel; the tab passes through the channel and is electrically connected to the first electrode lead-out member; the separator plate is provided with at least one through hole; and the through hole penetrates the separator plate in the direction of thickness of the separator plate. The technical solution of the embodiments of the present application is conducive to reducing the risk of the accumulation of an electrolyte in the separator member, thereby facilitating the full utilization of the electrolyte.
244, wherein M comprises chalcogens. The electrolyte comprises a solvent and a lithium salt, and further comprises at least one of a lithium metal chelate and an additive capable of being combined with lithium ions to form a chelate. The secondary battery of the present application has low DCR, and has good rate performance and cycle performance.
The present application belongs to the technical field of battery production. Provided are an electronic control device, a battery device, a related device, an energy storage system and a charging network. The electronic control device comprises a battery management circuit board and an electrical connection assembly, wherein the battery management circuit board is provided with a first connecting terminal, which first connecting terminal is electrically connected to an internal circuit of the battery management circuit board; and the electrical connection assembly comprises a bearing member and a conductive component, the conductive component being connected to the bearing member, and the conductive component comprising a conductive part, a second connecting terminal and a third connecting terminal. The second connecting terminal is connected to the third connecting terminal by means of the conductive part, the second connecting terminal is connected to the first connecting terminal, and the third connecting terminal is connected to a busbar or a relay inside the electric control device. The present application is aimed at replacing the connection mode of a wire harness, so as to simplify the structure and improving the integration level.
H01M 50/298 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the wiring of battery packs
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
18.
HIGH-VOLTAGE POWER DISTRIBUTION DEVICE AND FORMING METHOD FOR HOUSING STRUCTURE THEREOF, AND BATTERY DEVICE AND ELECTRIC APPARATUS
The present application belongs to the technical field of batteries, and specifically relates to a high-voltage power distribution device and a forming method for a housing structure thereof, and a battery device and an electric apparatus. The high-voltage power distribution device comprises a first housing, and the first housing comprises a housing main body and a plurality of electrical connection members, wherein the housing main body is an insulated member; each electrical connection member comprises an inner main body portion embedded in the housing main body, and a first connection portion exposed to a surface of the housing main body; a spacing area is formed between every two adjacent main body portions; the surface of the housing main body is recessed inwardly to form several recessed holes; and a cavity area is formed at the position between every two adjacent main body portions by means of the recessed hole. A connection rib can be provided at the position of the spacing area that corresponds to the recessed hole, so as to connect adjacent main body portions, and after injection molding, the connection rib is disconnected at the position of the recessed hole to separate the two main body portions; and the adjacent electrical connection members can be positioned and connected by means of the connection rib, and the connection rib can play a role in positioning and supporting, such that the plurality of electrical connection members can be integrally injection molded as an integral member with the housing main body, thus facilitating an increase in the machining efficiency.
H01R 43/16 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
A separator, a battery cell, a battery, and an electric device. The separator comprises a porous base material. The porous base material satisfies at least one of the following conditions (1) to (3): (1) when t is 300 seconds, the compressive creep compliance of the porous base material is 0.05 MPa-1to 0.24 MPa-1; (2) when t is 1,800 seconds, the compressive creep compliance of the porous base material is 0.12 MPa-1to 0.36 MPa-1; and (3) when t is 3,600 seconds, the compressive creep compliance of the porous base material is 0.23 MPa-1to 0.52 MPa-1. The provided separator enables a battery to have good cycle performance and rate performance.
The present application is applicable to the technical field of power batteries, and provides an electrode assembly (400) and an adhesive tape application method therefor, a battery cell (300), a battery (200), and an electric device (100). The electrode assembly comprises: a first covering member (60) provided on the surface of the electrode assembly, the first covering member being provided with an information pattern; and a second covering member (70) provided on the surface of the electrode assembly, the information pattern being exposed outside the second covering member. According to the present application, the second covering member covers the surface of the electrode assembly, so that the electrode assembly is protected by the second covering member, thus reducing the impact of the external environment on the electrode assembly; and when the second covering member covers the electrode assembly, the information pattern can be exposed outside the second covering member, thus reducing the impact of the second covering member on the first covering member, so that an identification device can identify information recorded on the first covering member.
A connector, a battery, and an electric device. The connector (10, 20) comprises a base (11, 21) and first terminals (16, 25). The base (11, 21) has an insertion side (101, 201) and a fixing side (102, 202) arranged opposite to the insertion side (101, 201); a flow channel (110, 210) for conveying a fluid is formed on the base (11, 21); and two ports of the flow channel (110, 210) are respectively located on the insertion side (101, 201) and the fixing side (102, 202). The first terminals (16, 25) are configured to be electrically connected to a power supply; the first terminals (16, 25) are connected to the base (11, 21); and the first terminals (16, 25) extend to the insertion side (101, 201).
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/298 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the wiring of battery packs
F16K 1/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
Provided in the present application are a coating mechanism and a coating device. The coating mechanism comprises a coating head and an acceleration mechanism, the coating head being provided with an accommodating cavity, and the cavity wall of the accommodating cavity being provided with a feeding opening and a discharging opening. At least part of the acceleration mechanism is located in the accommodating cavity. The acceleration mechanism is configured to split in the first direction a slurry stream entering from the feeding opening, the first direction intersecting with a discharging direction of the discharging opening. The slurry enters the accommodating cavity of the coating head through the feeding opening and is coated onto an electrode sheet by means of the discharging opening. Using the part of the acceleration mechanism inside the accommodating cavity can raise the flow speed of the slurry in the accommodating cavity, i.e. using an active mode to raise the flow speed of the slurry in the accommodating cavity, thereby solving the problem of slurry accumulation in accommodating cavities.
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
A battery cell, a battery and an electrical apparatus, relating to the technical field of batteries. The battery cell comprises a casing, having a first opening; a first end cap assembly, used for covering the first opening, the first end cap assembly comprising protruding structures and a first electrode lead-out component; an electrode assembly, accommodated in the casing, the electrode assembly comprising a main body part and tabs extending from the main body part; and an isolation component, at least partially provided between the first electrode lead-out component and the main body part, wherein the isolation component comprises opening structures, reinforcement structures and isolation plates, the opening structures are protrudingly arranged on the surfaces of the isolation plates facing the first end cap assembly and are snap-fitted with the protruding structures, and the reinforcement structures are connected to the outer side walls of the opening structures, thus improving the reliability of the battery cell.
The present application relates to a secondary battery and an electrical apparatus. The secondary battery comprises a positive electrode piece; the positive electrode piece comprises a positive electrode active material layer, the single-sided coating weight G1 of the positive electrode active material layer satisfying: 360 mg/1540.25 mm2≤G1≤550 mg/1540.25 mm2; the compaction density ρ1 of the positive electrode piece satisfies: 2.4 g/cm3≤ρ1≤2.9 g/cm3; the positive electrode piece satisfies: when the positive electrode piece and a lithium metal piece are manufactured into a button cell, and the button cell is subjected to constant-current discharging to 3.2 V at the 1C rate, the obtained discharge capacity per gram is C1, and when the button cell is subjected to constant-current discharging to 2 V at the 1C rate, the obtained discharge capacity per gram is C2, where r=C1/C2, and r satisfies: 80%≤r≤98%.
A composite lithium-supplementing material and a preparation method therefor, a positive electrode sheet, a battery and an electric device. The composite lithium-supplementing material comprises: a porous carrier and a lithium-supplementing agent, wherein the porous carrier is a nitrogen-doped porous carbon carrier, and a transition metal compound is present on the inner surface of pore structures of the porous carrier; and the lithium-supplementing agent is located inside the pores of the porous carrier.
A silicon-carbon composite material and a preparation method therefor, a secondary battery, and an electric device. The silicon-carbon composite material comprises a core and a coating coated on the surface of the core; the core comprises a carbon matrix and a silicon-based material located on the surface of the carbon matrix; the silicon-based material comprises a silicon cluster and a silicon carbide cluster; the silicon carbide cluster forms a network structure; and the silicon cluster is located in a gap of the network structure. The silicon-carbon composite material can eliminate the memory effect of silicon and improve the capacity retention rate.
The present application relates to the technical field of batteries. Disclosed are a beam structure of a battery, a battery and an electric device. The beam structure comprises: a mounting member, which is provided with a first mounting position where a high-voltage control element is mounted; and an expansion beam, which is provided with a second mounting position where the high-voltage control element and a connecting terminal of a battery cell group are mounted, at least part of the expansion beam being connected to the mounting member into one piece.
Disclosed in the present application are a negative current collector and a preparation method therefor, and a battery cell, a battery and an electric apparatus. The negative current collector comprises a metal substrate and metal nanoparticles located on at least part of a surface of the metal substrate, wherein the metal substrate comprises a first metal element, and the first metal element is made of the same material as the metal nanoparticles. By means of the negative current collector provided in the present application, a battery has good cycle performance and high reliability.
Provided are an electrode sheet, an electrode assembly, a cell, a battery, and an electric device. The electrode sheet comprises a current collector and an active material layer; the current collector comprises a conductive layer; in the thickness direction of the electrode sheet, the active material layer is arranged on at least one side of the conductive layer; the conductive layer has a coated portion; the active material layer is arranged on the coated portion; and the melting point of at least part of the coated portion is less than or equal to 300°C. The melting point of at least partial area of the conductive layer is low, and therefore, when a short circuit occurs at the partial area inside the cell, the part of the conductive layer can be melted to cause an open circuit inside the cell, or the overcurrent capability of the conductive layer can be partially reduced after the partial area is melted, so that the conductive layer can be quickly melted, the active material layer in the short-circuit area collapses, and a positive electrode and a negative electrode that comprise the electrode sheet are disconnected, thereby effectively alleviating the temperature rise inside the cell, and thus reducing the risk of thermal runaway of the cell comprising the electrode sheet, and improving the reliability of the cell.
The present application provides a cooling structure, a battery, and an electric device. The cooling structure comprises a side plate and a cooling channel arranged on at least one side of the side plate. The side plate is configured to be able to deform towards the side where the cooling channel is located, and generate an amount of deformation, and the side plate has different amounts of deformation in at least one direction. The side plate can deform towards the side where the cooling channel is located, and generates the amount of deformation, and the amounts of deformation at different positions of the side plate are different. The side surface, in contact with a side plate, of a cooled component has different degrees of expansion, the different degrees of expansion exert different forces on different areas of the side plate, and different amounts of deformation on the side plate provide expansion spaces required for different degrees of expansion, allowing the cooled component to expand differently according to changes of internal stress, thereby maintaining the normal service life of the cooled component or even prolonging the service life of the cooled component.
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises: a housing, an electrode assembly, an electrode lead-out member, and an insulating bracket. The electrode assembly is accommodated in the housing and comprises a main body portion and a first tab, the first tab extending out through the end of the main body portion in a first direction. The electrode lead-out member is arranged on the housing and is electrically connected to the first tab. The insulating bracket is accommodated in the housing and is arranged in the first direction with the main body portion, a portion of the insulating bracket is located between the electrode lead-out member and the housing, and the insulating bracket is provided with a first accommodating recess on the side facing the main body portion, at least part of the first tab extending into the first accommodating recess. By means of the provision of the insulating bracket, the embodiments of the present application can improve reliability.
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
H01M 50/531 - Electrode connections inside a battery casing
H01M 10/04 - Construction or manufacture in general
The present application provides a battery cell, a battery and an electrical apparatus, and belongs to the technical field of batteries. The battery cell comprises an electrode assembly, a casing and a current collecting end cover. The electrode assembly comprises a first tab; the casing forms a containing cavity and an opening located at one end of the containing cavity, the containing cavity being used for containing the electrode assembly; the current collecting end cover is connected to the casing to seal the opening; the current collecting end cover comprises a tab connecting part and a casing connecting part which are connected to each other, the tab connecting part being connected to the first tab, and the casing connecting part being connected to the casing.
Provided in the embodiments of the present application are a battery cell, a battery, and an electrical device. The battery comprises a housing and an electrode assembly, the electrode assembly being flat, and the housing accommodating the electrode assembly. The housing comprises a first wall portion and a second wall portion which are adjacent and connected to one another, the first wall portion being provided with a pressure relief mechanism, and the second wall portion being disposed opposite to the electrode assembly along the thickness direction of the electrode assembly. The second wall portion is provided with a protruding portion, the protruding portion being used to reinforce the second wall portion. The protruding portion can reinforce the second wall portion so as to improve the deformation resistance of the second wall portion. When the electrode assembly expands along the thickness direction thereof, the presence of the protruding portion can reduce the deformation amount of the second wall portion, thus reducing the impact of the second wall portion on the first wall portion, reducing the deformation amount of the first wall portion, improving the anti-fatigue strength of the pressure relief mechanism on the first wall portion, and prolonging the service life of the battery cell.
abcdefabcdeff precursor. The positive electrode contains the layered oxide represented by the chemical formula, and the sodium battery contains the positive electrode. The electric device comprises the sodium battery. The layered oxide contained in the positive electrode material has high structure stability, gram capacity and energy density and good cycle performance. The sodium battery has high energy density and good cycle performance.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
A visual inspection system includes: a visual calibration apparatus, including a calibration member and a calibration member moving apparatus, where the calibration member moving apparatus includes a movable mounting plate, the mounting plate is able to be located at a calibration position within a movement range of the mounting plate, the calibration position is located within an inspection range of a visual inspection apparatus, and the calibration member is disposed on the mounting plate; the visual inspection apparatus, configured to obtain an image of the calibration member and send the image of the calibration member to an upper computer, and the upper computer, configured to determine, based on the image of the calibration member, a systematic calibration result of the visual inspection apparatus.
Provided are a clamping device (100) and a battery production apparatus. The clamping device (100) comprises a first clamping assembly (10), a second clamping assembly (20), a pressure sensing assembly (30), and a driving assembly (40). The first clamping assembly (10) comprises a power member (11) and a driving roller (12), the power member (11) being drivingly connected to the driving roller (12). The second clamping assembly (20) comprises a connecting base (21) and a driven roller (22), the connecting base (21) being connected to an external apparatus, and the driven roller (22) being rotatably arranged on the connecting base (21). The driven roller (22) and the driving roller (12) are oppositely arranged; the driving roller (12) is configured to drive, during rotation, the driven roller (22) to rotate, so as to transfer a material therebetween. The pressure sensing assembly (30) is arranged on the driving roller (12) and is used for sensing a clamping force between the driving roller (12) and the driven roller (22) during material transfer. The driving assembly (40) is drivingly connected to the driving roller (12); and the driving assembly (40) is configured to drive, when the clamping force sensed by the pressure sensing assembly (30) is beyond a set threshold, at least one axial end of the driving roller (12) to move relative to the driven roller (22) until the clamping force is at the set threshold, so as to implement self-detection and self-adjustment of the position of the driving roller (12), thus ensuring the stability of the clamping force.
B65H 23/26 - Registering, tensioning, smoothing, or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
37.
POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRIC DEVICE
A positive electrode active material and a preparation method therefor, a secondary battery, and an electric device. The positive electrode active material comprises particles containing lithium nickel cobalt manganese oxide. In a range of an extension distance L from the surfaces of the particles to the interiors of the particles along the radial direction of the particles, the mass concentration of Co gradually increases from the interiors of the particles to the surfaces of the particles along the radial direction of the particles, wherein L = 1 µm.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
A battery (10) and an electric apparatus. The battery (10) comprises battery cells (30) and a heat exchange member (20). Each battery cell (30) comprises electrode terminals (33) and a casing (31), the electrode terminals (33) are provided at the end of the casing (31) along a first direction, the casing (31) has two first surfaces (311a) opposite to each other along a second direction and two second surfaces (311b) opposite to each other along a third direction, the first surfaces (311a) are connected to the two second surfaces (311b), and the first direction, the second direction and the third direction intersect with each other. The heat exchange member (20) comprises a first sub-portion (21) and a second sub-portion (22), the first sub-portion (21) is opposite to the first surfaces (311a), and the second sub-portion (22) is opposite to the second surfaces (311b).
H01M 10/60 - Heating or coolingTemperature control
H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device comprises the battery cell (10) and the battery (100), wherein the battery (100) comprises battery cells (10), and the battery cells (10) each comprise a casing (12) and an electrode assembly (11). At least part of the casing (12) is a steel casing, and the casing (12) comprises a body (121) and a bottom (122). The bottom (122) is formed at one end of the body (121) in a first direction (Z), and is separated from or integrated with the body (121). At least part of the body (121) is welded. At least part of the electrode assembly (11) is provided in a space defined by the body (121) and the bottom (122). Therefore, the wall thickness of the casing (12) can be reduced while the structural strength of the battery cell (10) is relatively high, thereby reducing the proportion of the casing (12) in the battery cell (10), and achieving high energy density of the battery cell (10).
The present application belongs to the technical field of batteries, and specifically relates to a high-voltage power distribution device, a battery device and an electric apparatus. The high-voltage power distribution device comprises a housing and electrical connection members, wherein the housing comprises a first housing body, and the first housing body comprises an insulated housing main body; the plurality of electrical connection members are arranged spaced apart from one another and are embedded in the housing main body; each electrical connection member comprises a connection portion and an output portion, the connection portion being electrically connected to an electrical member; and the housing main body is further provided with an interface into which an external electrical connector can be adaptively plugged, and the output portion extends to be located within the interface. Each output portion is exposed to an inner wall surface of the interface, and when the external electrical connector is plugged into the interface, a connection terminal in the electrical connector comes into electrical contact with the corresponding output portion, and each output portion is accommodated in the interface and is electrically connected to an external electrical connection structure by means of the interface, such that there is no need to lead out the output portions by means of an adapter or a wire, thus facilitating the simplification of the overall structure of the high-voltage power distribution device, and increasing the assembly efficiency.
H01M 50/298 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the wiring of battery packs
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
H01R 13/40 - Securing contact members in or to a base or caseInsulating of contact members
41.
ANOMALOUS DATA ACQUISITION METHOD AND APPARATUS, DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM
Disclosed in embodiments of the present disclosure are an anomalous data acquisition method and apparatus, a device, and a computer-readable storage medium. The anomalous data acquisition method comprises: on the basis of a target acquisition strategy pre-configured in an execution program, capturing anomalous data generated when the execution program crashes during running; and writing the anomalous data into a file to obtain an anomalous data file, wherein the anomalous data file represents a calling condition of an anomalous function when the execution program is running.
The present application provides a battery and an electric device. The battery comprises a case, a battery cell, and a detection device; the case is provided with an accommodating cavity; the battery cell is arranged in the accommodating cavity and comprises a casing and a pressure relief mechanism, the casing has a first wall, and the pressure relief mechanism is arranged on the first wall of the casing; the detection device is arranged in the accommodating cavity, and the detection device is located between the first wall and the case and used for detecting whether the pressure relief mechanism is opened or not. According to the battery provided by the present application, the opening of the pressure relief mechanism can be detected more timely and accurately by means of the detection device, so that the battery can be controlled to take measures such as power shutdown and cooling in time, helping to reduce the further spread of thermal runaway in the battery, improving the reliability of the battery.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A nail penetration test device, which can improve the performance of nail penetration tests. The device comprises: a voltage acquisition module, which comprises a first connection port and a second connection port, the first connection port being connected to a nail, and the second connection port being connected to a first electrode terminal of a battery cell; and a nail mechanism, which is used for controlling the nail to move towards the battery cell. The voltage acquisition module is used for measuring the voltage between the nail and the first electrode terminal during the process of the nail moving towards the battery cell, the voltage being used for determining an initial penetration position of the nail on the battery cell.
G01R 31/385 - Arrangements for measuring battery or accumulator variables
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44.
SOLAR CELL AND PREPARATION METHOD THEREFOR, PHOTOVOLTAIC MODULE, SYSTEM, AND APPARATUS
A solar cell and a preparation method therefor, a photovoltaic module, a system, and an apparatus. The preparation method for the solar cell comprises the following steps: forming a perovskite light-absorbing layer on a first electrode to obtain an intermediate product; placing the intermediate product in a fumigation atmosphere for fumigation treatment, wherein the fumigation atmosphere comprises a gaseous passivation material and a gaseous solvent, the solvent can dissolve a surface material of the perovskite light-absorbing layer, and the passivation material can undergo a passivation reaction with the dissolved surface material to form a passivation layer on the surface of the perovskite light-absorbing layer; and forming a second electrode on the surface of the passivation layer away from the perovskite light-absorbing layer. According to the preparation method, a thin and uniform passivation layer can be quickly formed on the surface of a perovskite absorption layer by means of fumigation of a perovskite light-absorbing layer, thereby improving the photoelectric conversion efficiency and stability of solar cell devices.
A preparation process for a battery cell. The preparation process comprises the following steps: baking an electrode assembly; mixing the baked electrode assembly with an electrolytic solution containing a monomer and a free radical initiator, and performing activation treatment, so as to obtain a semi-finished product containing a gel-state electrolyte; and coating the outside of the semi-finished product with an insulating film. The insulating film plays an insulating isolation role between the semi-finished product and the inner wall of a casing, and the semi-finished product in a gel state can reduce the degree of freedom of the electrolytic solution on the basis of ensuring that the electrolytic solution fully infiltrates the electrode assembly, such that the electrolytic solution is more stably wrapped in the insulating film, thereby reducing the probability of the electrolytic solution moving to between the electrode assembly and the inner wall of the casing, and improving the voltage breakdown resistance of a battery cell.
The present invention provides an Mn-M binary multi-phase alloy, comprising: 39wt％≤Mn≤78wt％, and the remainder comprising a metal M, wherein the standard electrode potential of the metal M is higher than that of Mn, and an αMn phase, a γM-Mn phase, and a γ'Mn-M phase are distributed in the binary metallic multi-phase alloy. In addition, the present invention further relates to a preparation method for the Mn-M binary multi-phase alloy, a use thereof in preparation of a porous material, a current collector comprising the porous material, a secondary battery, and an electric device.
An adapter (40) detection tool (50), a sealing detection device (400), and a sealing detection method, relating to the technical field of batteries. The detection tool (50) comprises a tool body (500) and a detection channel (540); the tool body (500) comprises a first end (511) and a second end (512) opposite to each other; an accommodating cavity (530) is provided in the tool body (500); a first opening (513) communicated with the accommodating cavity (530) is formed in the first end (511); a second opening (514) communicated with the accommodating cavity (530) is formed in the second end (512); the first end (511) is used for being docked with a mounting plate (110) where a first connecting end (401) of the adapter (40) is located; the accommodating cavity (530) is used for accommodating the first connecting end (401) of the adapter (40); the second opening (514) allows a second connecting end (402) of the adapter (40) to extend out; and one end of the detection channel (540) is communicated with the accommodating cavity (530), and the other end of the detection channel (540) is used for being connected to a gas detection device (60).
G01M 3/22 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for valves
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A battery and an electric device. The battery comprises an electrode piece, the electrode piece comprises a current collector and a film layer arranged on at least one side of the current collector, and the film layer comprises an active substance and a lyophilic polymer; wherein the energy density of the battery is greater than or equal to 300 Wh/Kg.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
The present application relates to a positive electrode piece, a battery, and an electric device. The positive electrode plate comprises a positive electrode current collector and a positive electrode film layer arranged on at least one side of the positive electrode current collector; the positive electrode film layer comprises a positive electrode active material and a lyophilic polymer; and the coating weight of the positive electrode film layer is ≥ 300 mg/1540.25 mm2.
H01M 4/137 - Electrodes based on electro-active polymers
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/05 - Accumulators with non-aqueous electrolyte
51.
POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS
1-xxabcde22, wherein M1 comprises Fe, M2 comprises Al, 0.01≤x≤0.4, 0.5≤a≤0.98, 0≤b≤0.3, 0≤c≤0.3, 0≤d≤0.1, 0≤e≤0.45, and a+b+c+d+e=1. The technical solution can reduce the impact on the energy density of batteries while reducing the production cost of batteries.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
52.
BATTERY CELL AND PREPARATION METHOD THEREFOR, BATTERY, ELECTRIC DEVICE, AND ENERGY STORAGE DEVICE
Embodiments of the present application provide a battery cell and a preparation method therefor, a battery, an electric device, and an energy storage device, capable of improving the insulation performance of the interior of the battery cell. The battery cell comprises: a casing; an electrode assembly, the electrode assembly being accommodated in the casing; an electrode terminal, the electrode terminal being arranged on the casing; and a connecting member, the connecting member being used for connecting the electrode terminal and the electrode assembly, and at least part of the surface of the connecting member facing the casing being provided with a first insulating part.
A battery cell (20), a battery (100), and an electrical device. The battery cell (20) comprises a casing (21) and a first sealing member (23). The casing (21) comprises a first wall (213), and the first wall (213) is provided with a liquid injection hole (2130); and the first sealing member (23) is configured to seal the liquid injection hole (2130), the first sealing member (23) and the first wall (213) are welded and form a connecting portion (230), the connecting portion (230) is provided around the liquid injection hole (2130), and the connecting portion (230) is exposed to the surface of the first sealing member (23) facing away from the first wall (213). The solution can improve the reliability of the battery (100).
Disclosed in the present application are a battery, a voltage sampling method, and an electric apparatus. The battery comprises a housing, a communication system and a voltage sampling system, wherein the communication system is connected to the housing; the voltage sampling system is connected to the housing; and a controller is respectively connected to the communication system and the voltage sampling system, and is used for controlling a communication timing sequence of the communication system and a sampling timing sequence of the sampling system to be arranged at intervals. By means of the solution, voltage data obtained by means of sampling can be more accurate.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
55.
POLYMER, PREPARATION METHOD, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE
The present application provides a polymer, a preparation method, a negative electrode sheet, a secondary battery, and an electric device. The polymer comprises a structural unit derived from an unsaturated carboxylic acid monomer, a structural unit derived from an unsaturated cyano monomer, and a structural unit derived from a flexible monomer. The glass transition temperature of the flexible monomer is -60°C to 0°C, and optionally -55°C to -15°C. The polymer can reduce the warping of electrode sheets and widen processing windows of electrode sheets.
An energy storage circuit and a power supply apparatus, belonging to the technical field of power supplies. The energy storage circuit comprises a main positive line, a main negative line, at least one first current limiting component and a battery module connected between the main positive line and the main negative line. The battery module comprises a plurality of battery components which are sequentially connected in series; the plurality of battery components are respectively supported in a one-to-one correspondence by a plurality of support members; the battery components are insulated from the support members; and each first current limiting component is connected between two adjacent support members and is used for limiting the current between the two adjacent support members. Therefore, in case of double-point insulation failures across electrical boxes (support members), the present application reduces short-circuit currents, thus reducing the possibility of causing high-voltage sparking and battery combustion or explosion.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
H01M 50/572 - Means for preventing undesired use or discharge
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
57.
WELDING FIXTURE AND WELDING DEVICE COMPRISING SAME
A welding fixture and a welding device comprising same. The welding fixture comprises: a fixing base, used for fixing a battery cell; and at least one pressure plate, detachably fixed to the fixing base and used for enabling tabs of the battery cell to abut against poles, wherein the pressure plate is provided with a clearance through hole and an air channel; the clearance through hole is arranged opposite to areas to be welded of the tabs and the poles, and the air channel is communicated with the clearance through hole to guide a protective gas into the clearance through hole. In the technical solution of embodiments of the present application, the welding fixture provided by the embodiments of the present application has the advantages of controlling spatter of welding slags at said areas of the poles and the tabs and cleaning the welding slag on the poles and the tabs, so as to reduce residual welding slags in said areas of the poles and the tabs, thereby reducing the possibility that the welding slags enter the battery cell, and improving the welding quality.
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
58.
GAS PRESSURE MEASUREMENT METHOD FOR BATTERY, APPARATUS, DEVICE AND SYSTEM
Disclosed in the present application are a gas pressure measurement method for a battery, an apparatus, a device and a system. The gas pressure measurement method for a battery comprises: separately inputting excitation signals of different frequencies into a piezoelectric device arranged on a battery; acquiring impedances of the piezoelectric device under the excitation signals of different frequencies; and determining a target impedance from amongst the impedances corresponding to the excitation signals of different frequencies, and determining a value of the gas pressure in the battery matched with the target impedance. The solution can measure the gas pressure in batteries.
G01L 9/06 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of piezo-resistive devices
An electrode assembly, a processing method therefor, a battery cell, a battery, an electrical apparatus and a cutter assembly. The electrode assembly comprises an active substance-coated part and a tab part. The tab part comprises a plurality of tab pieces, overlapping parts of the plurality of tab pieces forming an overlapping region, and misaligned parts of the plurality of tab pieces forming a misalignment region connected to the overlapping region. The misalignment region comprises a first connection part and a second connection part, the side of the first connection part in a first direction being connected to the active substance-coated part, and the second connection part being connected to the other side of the first connection part in the first direction. In a second direction, the end of the second connection part away from the overlapping region is closer to the overlapping region than the end of the first connection part away from the overlapping region.
The present application discloses a battery management system and an electric device. The battery management system comprises a first circuit and a protection circuit, wherein the first circuit is connected to the protection circuit, and the protection circuit is used for reducing the amplitude of an interference signal entering the first circuit. The embodiments of the present application can improve the reliability of the battery management system.
An electrolyte additive, an electrolyte, a battery and an electric device. The electrolyte additive comprises vinylene carbonate, methylene methanedisulfonate and an alkynyl compound. The alkynyl compound comprises (I), wherein n is 0-10, and R comprises (II) or (III).
The present application relates to the technical field of batteries, and provides a battery cell, a manufacturing method therefor, a battery and an electrical apparatus. The battery cell comprises a battery core assembly and an outer package; the battery core assembly comprises a positive electrode sheet, an active material coating being provided on the positive electrode sheet, and the active material coating comprising a sodium-containing copper-based layered oxide; the outer package is used for packaging the battery core assembly. A ventilation member is provided in the outer package, the ventilation rate of the ventilation member being equal to or larger than the maximum required venting capacity of the battery cell in total cycle time per unit, and the maximum required venting capacity of the battery cell in the total cycle time per unit being obtained by converting the volume of carbon dioxide generated by cleavage of Cu-O bonds and oxygen release in the sodium-containing copper-based layered oxide. The battery cell of the present application uses the ventilation member to timely discharge the redundant gas generated by the cleavage of Cu-O bonds in the working process of the battery out of the battery cell, such that the problem of battery cell failure caused by valve opening of a pressure relief mechanism of the battery cell due to the internal gas pressure being too large and reaching a threshold value of the pressure relief mechanism is less likely to occur.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
63.
BATTERY MANAGEMENT METHOD AND SYSTEM, TERMINAL, AND COMPUTER READABLE STORAGE MEDIUM
The present application discloses a battery management method and system, a terminal, and a computer readable storage medium. The battery management method comprises: acquiring information of states of a battery cell; and in response to the battery cell being in a storage state, controlling the battery cell to discharge at a current less than or equal to a threshold. According to the embodiments of the present application, by means of the method for active discharging in a storage phase of a battery cell, electrons in a negative electrode of the battery cell are guided away by means of an external circuit, so that the contact between the electrons and an electrolyte is reduced, and gas generation from reduction of the electrolyte is reduced from the source, thereby improving the safety of the battery cell. The method can be applied to the full life cycle of a battery cell, and has a long-standing and stable gas generation reduction effect.
A solid-state electrolyte slurry, a solid-state electrolyte membrane, a solid-state battery and an electrical apparatus. The solid-state electrolyte slurry comprises a first solvent, the polarity parameter of the first solvent being not greater than 4; and a first fluoropolymer, the first fluoropolymer being soluble in the first solvent. The low-polarity solvent has weak reactivity, so that the solid-state electrolyte still maintains high ionic conductivity after being treated by the low-polarity solvent. The fluoropolymer is soluble in the low-polarity solvent, which not only fully functions as a binder to bond the solid-state electrolyte into a membrane having a certain strength, but also does not have too much negative impact on the ionic conductivity of the electrolyte membrane, thus allowing the electrolyte to maintain interconnectivity during battery cycling, further resisting the stress and suppressing the increase in interfacial impedance, and improving the cycling performance of batteries.
An energy storage system and a power source apparatus, which belong to the technical field of power sources. The energy storage system comprises: a general positive line, a general negative line and a battery module connected between the general positive line and the general negative line, and the battery module comprises M battery assemblies (11) connected in series. The energy storage system further comprises: N supporting members (12), wherein the M battery assemblies (11) are supported by means of the N supporting members (12), and the M battery assemblies (11) are insulated from the N supporting members (12). The energy storage system further comprises: a conductive path, wherein K supporting members (12) among the N supporting members (12) are connected to the conductive path by means of K branches, respectively, M, N and K are all positive integers, and M≥N≥K>1. A protective assembly (13) is arranged on the conductive path and/or the branch in series. Thus, a short-circuit current is expected to be reduced when double-point insulation of a cross-electrical-box (a supporting member) fails, and the possibility of initiating high-voltage ignition and battery combustion and explosion is reduced.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
An energy storage system, an insulation detection method for an energy storage system, and a power source apparatus. In the energy storage system, battery assemblies (11) and supporting members (12) are arranged insulated from each other; the supporting members (12) are respectively connected to an electrically conductive path (13) by means of a plurality of branches, and when insulation failures of more than one supporting member (12) occur, that is, when insulation failures occur in more than one point in the supporting members (12), a short-circuit current caused by the insulation failures is borne by means of the electrically conductive path (13), and the impedance of the electrically conductive path (13) can be set to suppress the short-circuit current, so as to achieve a short-circuit protection function, thereby reducing the possibility of causing high-voltage arcing and combustion and explosion of a battery; in addition, an insulation detection circuit (14) is also provided, so as to perform detection on an insulation parameter of the energy storage system, thereby reducing the possibility of the battery assemblies (11) operating in an insulation failure state for a long term.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteriesEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for accumulators
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
67.
SILICON-CARBON COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRICAL DEVICE
The present application relates to a silicon-carbon composite material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electrical device. The silicon-carbon composite material comprises a porous carbon matrix and a silicon-based material layer located in pores of the porous carbon matrix, the silicon-based material layer comprises a sub-nano silicon cluster and a sub-nano silicon carbide cluster, and the surface of the sub-nano silicon carbide cluster is in contact with the surface of the sub-nano silicon cluster. The silicon-carbon composite material has small expansibility, good cycle performance and fast charging performance and high energy density.
The present application relates to a battery pack, a balancing control method and apparatus, a computer device, a medium and a product. The battery pack comprises: at least two battery cells, wherein a balancing circuit, a processing module and a wireless communication module are integrated on each of the battery cells. The processing module of each battery cell is used for acquiring a balancing control instruction by means of the wireless communication module of the battery cell to which the processing module belongs, and controlling, on the basis of the balancing control instruction, the working state of the balancing circuit of said battery cell, so as to perform balancing control over said battery cell.
1212345122 are not H at the same time; and "*" represents a connection site, formula (3) represents that atoms at two ends thereof are connected to form a ring, and n is any integer of 3 5.
An end cover (12), a battery cell (600), a battery (100), and an electric device. The battery cell (600) comprises a housing (11), an electrode assembly (20), and the end cover (12). An opening (K) is formed at the end portion of the housing (11) in a first direction (X). The electrode assembly (20) is accommodated in the housing (11). The end cover (12) is used for covering the opening (K), the end cover (12) comprises an end cover body (121) of which the projection is located in the projection of the opening (K) in the first direction (X), and the end cover (12) is welded to the housing (11) to form a molten pool structure (R). In a radial direction (Y) of the opening (K), the molten pool structure (R) is exposed on the outer surface of the housing (11) and extends into the interior of the end cover body (121). The laser is irradiated from the outer peripheral side of the housing (11) to the vicinity of the junction between the housing (11) and a protruding portion (122) in the radial direction (Y), such that the formed molten pool structure (R) can comprise most of the structures and even all of the structures of the protruding portion (122), a part of the structure of the housing (11), and a part of the structure of the end cover body (121), thereby increasing the overall size of the molten pool structure (R) and improving the welding strength between the housing (11) and the end cover (12).
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
71.
FLUORINE-CONTAINING POLYMER, PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY AND ELECTRIC DEVICE
The present application provides a fluorine-containing polymer, a preparation method therefor, a positive electrode sheet, a secondary battery and an electric device. The fluorine-containing polymer comprises a structural unit derived from vinylidene fluoride and a structural unit derived from an unsaturated carboxylic acid monomer, and the fluorine-containing polymer has a weight-average molecular weight of 5-9 million, optionally 5-8 million.
A negative electrode active material, a negative electrode sheet, a sodium ion battery, and an electrical apparatus. The negative electrode active material comprises: hard carbon, the true density ρ of the hard carbon satisfying 1.3 g/cm3≤ρ≤1.8 g/cm3; and an intercalation-type sodium storage material, the crystal plane spacing d of the intercalation-type sodium storage material satisfying 0.24 nm≤d≤0.8 nm. The negative electrode active material can effectively reduce the risk of thermal runaway of sodium ion batteries.
A conveying device for conveying a workpiece and a battery production line. The conveying device comprises a first conveyor (7), a second conveyor (8), an in-place detection device, and a controller. The in-place detection device comprises: a support (1); a support shaft (2) mounted on the support (1); a rocker (3) mounted on the support shaft (2) and supported to be rotatable about the axis of the support shaft (2), the rocker (3) being configured to be rotatable between a first posture and a second posture; and a sensor (5) mounted on the support (1) and configured to, if it is detected that the rocker (3) is in the second posture, send a first specified signal indicating that a workpiece under test (6) has been in place. The controller is configured to at least control a drive device of the first conveyor (7) on the basis of the first specified signal. By integrating the sensor (5) and the rocker (3) which serves as an object under test, the impact of the external environment on a detection operation can be reduced, so that the detection reliability can be improved, thereby improving the control reliability of the conveying device and the battery production line.
A detection device (100), comprising: a first detection module (20) and a second detection module (30), which are respectively used for detecting different parts of a battery cell (200); a loading module (40), which is used for acquiring and transferring battery cells, wherein the loading module can drive the battery cells to pass through the first detection module; a carrier assembly (50), which is used for receiving the battery cells, which are transferred from the loading module, wherein the carrier assembly is used for conveying the battery cells to pass through the second detection module; and an unloading module (60), which is used for acquiring and transferring the battery cells, which are conveyed by the carrier assembly. In the detection device, various detection means are respectively set as a first detection module and a second detection module, and a feeding module can pass through the first detection module during a process of transferring battery cells, so that the time required for detecting the battery cells on a carrier assembly is shortened, the structural arrangement is optimized, and the detection efficiency is improved.
B07C 5/00 - Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or featureSorting by manually actuated devices, e.g. switches
B07C 5/02 - Measures preceding sorting, e.g. arranging articles in a stream, orientating
B07C 5/36 - Sorting apparatus characterised by the means used for distribution
G01N 21/13 - Moving of cuvettes or solid samples to or from the investigating station
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
75.
BATTERY CELL, MANUFACTURING METHOD THEREFOR, BATTERY, AND ELECTRICAL APPARATUS
Disclosed in the present application are a battery cell, a manufacturing method therefor, a battery and an electrical apparatus. The battery cell comprises an electrode assembly, a casing and a first electrode terminal. The casing is provided with an accommodating cavity, the Brinell hardness of the casing being greater than or equal to 30 HB. The electrode assembly is arranged in the accommodating cavity, a first tab being provided at the end part of the electrode assembly in a first direction. The first electrode terminal is partially arranged in the accommodating cavity and is connected to the first tab, the first electrode terminal penetrating through the casing and extending to the outer side of the casing.
A battery and an electric device, which belong to the technical field of batteries. The battery comprises: a case, which has a cavity; a plurality of battery cell groups, which are accommodated in the cavity, each battery cell group comprising a plurality of arranged battery cells; a plurality of support plates, which are mounted at the cavity and are spaced apart from each other, each support plate being a metal plate, the battery cell groups being mounted onto the support plates so that the support plates support the plurality of battery cells, and each support plate supporting at least one battery cell group; and connecting plates, each of which is arranged between the side of the support plate facing away from the battery cell group and the case, is an insulating member, and is connected to both the support plate and the case.
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
77.
LITHIUM-ION BATTERY, BATTERY, AND ELECTRIC APPARATUS
This application relates to a lithium-ion battery, a battery, and an electric apparatus. The lithium-ion battery includes an electrolyte and a positive electrode plate. The electrolyte includes a lithium salt, where the lithium salt includes lithium hexafluorophosphate, and based on a total mass of the electrolyte, a mass proportion of the lithium hexafluorophosphate is 15% to 20%. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer disposed on at least one side of the positive electrode current collector and containing a positive electrode active material. This application can improve cycling performance of the lithium-ion battery.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0567 - Liquid materials characterised by the additives
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
78.
POSITIVE ELECTRODE PLATE AND PREPARATION METHOD THEREOF, ELECTRODE ASSEMBLY, BATTERY CELL, AND BATTERY
This application provides a positive electrode plate and a preparation method thereof, an electrode assembly, a battery cell, and a battery and pertains to the field of battery technologies. The method for preparing a positive electrode plate includes: providing an adhesive liquid on at least one surface of at least partial to-be-bent position of a positive electrode current collector and curing it to form an adhesive layer, and forming a positive electrode active material layer on at least one surface of the positive electrode current collector having the adhesive layer. The adhesive liquid is first provided on at least one surface of the to-be-bent position of the positive electrode current collector and cured to form the adhesive layer, and then the positive electrode active material layer is formed.
The present application pertains to the technical field of batteries, and provides a battery cell, a battery, and an electrical device. The battery cell comprises a positive electrode sheet, a negative electrode sheet, and a separator film. The positive electrode sheet comprises a positive electrode active material area, the negative electrode sheet comprises a negative electrode active material area, the negative electrode sheet and the positive electrode sheet are stacked in a first direction, and the separator film is located between any adjacent positive electrode sheet and negative electrode sheet. The projection of the negative electrode sheet on a first plane perpendicular to the first direction completely falls within the range of the projection of the positive electrode sheet on the first plane, and the projection of the positive electrode active material area on the first plane falls with the range of the projection of the negative electrode active material area on the first plane.
A bracket assembly, comprising a first bracket (100) and second brackets (200), wherein the first bracket (100) is used for mounting a battery swap box of a vehicle, the second brackets (200) are used for providing side protection for the vehicle, the first bracket comprises a mounting main body (110) and connecting main bodies (120) connected to each other, each connecting main body and the mounting main body are arranged at an included angle, and the second brackets are fixed to the connecting main bodies. Further disclosed is a vehicle comprising the bracket assembly. By using the bracket assembly, the second brackets can be quickly assembled on the first bracket, the mounting step is simple and convenient, and the bracket assembly has both the functions of side protection and fixation of the battery swap box, thereby facilitating reduction of the assembly cost.
B60R 19/42 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects extending primarily along the sides of, or completely encircling, a vehicle
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
81.
LITHIUM SUPPLEMENT AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, BATTERY, AND ELECTRIC DEVICE
abcc, wherein a is 2-6, b is 0-4, c is 1-6, and M comprises at least one of Mg, Al, Si, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, and Sn; and a coating layer, wherein the coating layer at least covers part of the surface of the core, and the coating layer contains at least one of a silazane compound, a siloxane compound, a sulfonic acid silane compound, and a carbodiimide compound.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
131-521-91-9 alkyl group, Ar is a substituted or unsubstituted aryl group, n is any integer of 1-3, and the glass transition temperature of the polymer is less than 60°C.
C08F 257/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group on to polymers of styrene or alkyl-substituted styrenes
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCoating compositions based on derivatives of such polymers
C08F 226/06 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
83.
HEAT EXCHANGE DEVICE, CASE, BATTERY AND ELECTRIC DEVICE
Disclosed in the present application are a heat exchange device, a case, a battery and an electric device. The heat exchange device comprises a heat exchange main body, wherein the heat exchange main body is provided with a flow channel; and the flow channel has a lengthwise direction and a width direction, which intersect each other, and the flow channel comprises a first section and a second section, which are arranged in the lengthwise direction, at least one side of the first section in the width direction going beyond the second section to form a recessed region. The direction of a fluid after same flows into the recessed region in the lengthwise direction of the flow channel changes relative to the direction of the fluid before same enters the recessed region. Since the first section goes beyond the second section in the width direction, the fluid is subjected to an outward bias force in the width direction; and under the action of the bias force, impurities such as brazing flux are brought into and accumulated in the recessed region, and no longer flow into other regions of the heat exchange device along with the fluid, thereby preventing the brazing flux from adversely affecting the operation of the other regions of the heat exchange device.
F28D 1/03 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
An electrode assembly, a manufacturing method therefor, a battery cell, a battery and an electrical device. The electrode assembly comprises an active substance-coated part; and a tab part, the tab part comprising a plurality of stacked tab pieces. The plurality of stacked tab pieces have overlapping regions and misaligned regions, the overlapping regions being welded to form a first weld part, and the misaligned regions being welded at least at a position away from the active substance-coated part to form a second weld part. In the technical solution of the embodiments of the present application, on one hand, the utilization rate of the tab parts is improved, helping to increase the capacity of a battery cell and reduce the temperature rise caused by a current flow, and on the other hand, the second weld part can better support a welding nozzle than the plurality of fluffy tab pieces, so as to reduce problems of welding defects, thus reducing the requirement for cutting the welded tab part, saving costs, improving the fast charge performance and assembly efficiency of the battery cell, and also making the tab part less prone to be scratched by the hole wall of a through-hole structure.
A negative electrode sheet, a battery cell and an electric device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector; the negative electrode film layer comprises at least one negative electrode active material layer containing a negative electrode active material, one of the at least one negative electrode active material layer comprises a first area and a second area, and in the thickness direction of the negative electrode sheet, the first area at least covers the two ends of the negative electrode current collector in a first direction; the thickness direction is perpendicular to the first direction; the second area and the first area are continuously arranged in the first direction, the second area is sandwiched in the first area, and the second area covers part of the negative electrode current collector in the thickness direction; the compaction density of the negative electrode active material located in the first area is Ag/cm3, the compaction density of the negative electrode active material located in the second area is Bg/cm3, and B/A<1.
An electrolyte, a secondary battery, and an electrical apparatus. The electrolyte comprises an organic solvent and inorganic nanoparticles. The inorganic nanoparticles are suspended and dispersed in the organic solvent. The electrolyte has short sustainable combustion time and high oxidation voltage. The battery has a long thermal runaway time and excellent cycling stability.
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0561 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
H01M 10/0567 - Liquid materials characterised by the additives
87.
ELECTRODE ASSEMBLY AND PROCESSING METHOD, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
An electrode assembly (3) and a processing method, a battery cell (102), a battery (100), and an electrical device, pertaining to the technical field of batteries. The electrode assembly (3) comprises an active material coating part (31) and a tab part (32) connected to the active material coating part (31). The tab part (32) comprises a first lamination part (321) and a second lamination part (322) which are connectedly provided. The first lamination part (321) is formed by connecting an overlapping area (Z1) of a laminated multi-layer tab piece (320). The second lamination part (322) is formed by bending, in a direction approaching the first lamination part (321), a first part (3221) in an offset area (Z2) of the laminated multi-layer tab piece (320) towards a remaining second part (3222), and then laminating and connecting same together.
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises a casing (210), an electrode assembly (220), electrode terminals (230), and sealing members (240). The casing (210) comprises a first wall (211); through holes (2111) are formed in the first wall (211); the electrode assembly (220) is arranged in the casing (210); the first wall (211) is used for supporting the electrode assembly (220); each electrode terminal (230) is arranged at a corresponding through hole (2111); the electrode terminal (230) comprises a first conductive portion (231); the first conductive portion (231) is arranged on the side of the first wall (211) facing an accommodating space; and each sealing member (240) is arranged between a corresponding electrode terminal (230) and the first wall (211). When the outside of the casing (210) is stressed, the first wall (211) and the electrode terminals (230) can deform together, so that it is not easy to form gaps between the sealing members (240), which are located between the electrode terminals (230) and the first wall (211), and the first wall (211), and between the sealing members (240) and the electrode terminals (230), thereby maintaining good sealing performance between the sealing members (240) and the first wall (211) and between the sealing members (240) and the electrode terminals (230) and reducing the possibility of liquid leakage of the battery cell (20), and thus reducing the possibility of failure of the battery cell (20) and contamination or corrosion of other mechanisms.
An energy storage apparatus (10) and a container (20) therefor. The container (20) comprises a box body (21) and battery cells (30). The battery cells (30) are accommodated in the box body (21). The dimension of the container (20) in the length direction and the dimension thereof in the width direction are respectively consistent with the dimensions of a standard container, and the dimension h of the container (20) in the height direction is smaller than the dimension H of one standard container in the height direction of the container (20).
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
B65D 90/00 - Component parts, details or accessories for large containers
B65D 88/12 - Large containers rigid specially adapted for transport
The present application discloses a container, an energy storage apparatus, an energy storage device, an energy storage system, and a charging network. The energy storage apparatus comprises containers, the number of containers is m, m≥2, and the m containers are arranged in the height direction of the containers. The dimensions of the containers in the length direction thereof are consistent with the dimensions of standard containers in the length direction, the dimensions of the containers in the width direction thereof are consistent with the dimensions of the standard containers in the width direction, the dimension of one container in the height direction is smaller than the dimension of one standard container in the height direction, and the sum of dimensions of adjacent m1 containers among the m containers in the height direction is equal to the sum of dimensions of n standard containers in the height direction. The dimensions of the m1 containers in the height direction are equal to the dimensions of the n standard containers in the height direction, such that the space occupied by the m1 containers when stacked is the same as the space occupied by the n standard containers, improving the utilization of container placement space, and reducing the transportation cost of the containers, thereby reducing the use costs of energy storage apparatuses.
A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises a casing (21), an electrode assembly (22), a first insulating member (23), and electrode terminals (24); the electrode assembly (22) comprises tabs (221); the casing (21) is used for accommodating the electrode assembly (22); the casing (21) comprises a wall portion; the first insulating member (23) is arranged between the wall portion and the electrode assembly (22); the electrode terminals (24) are arranged on the wall portion; and the electrode terminals (24) pass through the first insulating member (23) and are directly connected to the tabs (221).
H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
92.
COILED-MATERIAL FEEDING UNIT, FEEDING DEVICE OF COATING MACHINE, AND COATING MACHINE
A coiled-material feeding unit (100), a feeding device of a coating machine, and a coating machine. The coiled material feeding unit (100) comprises: a supporting structure (20) configured to support a coiled material (90); a base (10), the supporting structure (20) being mounted on the base (10); and a positioning and feeding mechanism (40) configured to position and supply the coiled material (90) to the supporting structure (20), wherein the positioning and feeding mechanism (40) is mounted on the base (10). The positioning and feeding mechanism (40) is arranged on the base (10), so as to position and supply the coiled material (90) to the supporting structure (20), so that the supporting structure (20) quickly supports the coiled material (90), thereby improving the efficiency of mounting the coiled material (90) on the coiled-material feeding unit (100), and facilitating the supply of the coiled material (90) by the coiled material feeding unit (100) to an apparatus requiring a coiled material (90) such as a coating machine, and thus the feeding efficiency of the coiled material (90) is improved.
The present application is applicable to the technical field of charging, and provides a charging method and apparatus, a charging management device, and a computer readable storage medium. The method comprises: acquiring the temperature of a battery to be charged; acquiring activation energy data of said battery; determining a charge cutoff voltage on the basis of the temperature and the activation energy data; and charging said battery and controlling the maximum charging voltage of said battery to be smaller than or equal to the charge cutoff voltage. The method can improve the accuracy of the determined charge cutoff voltage, thereby prolonging the battery life and improving user experience.
A collecting pipe fitting (10), a thermal management assembly (100), a battery (1000), and an electric device. The collecting pipe fitting (10) comprises: a pipe body (11); first flow channel connectors (12) and second flow channel connectors (13), wherein there are multiple second flow channel connectors (13), and in the extension direction of the pipe body (11), at least two second flow channel connectors (13) are respectively located on two sides of the first flow channel connectors (12); and a separation structure (14), wherein the separation structure (14) is arranged inside the pipe body (11), the separation structure (14) separates the first flow channel connectors (12) and the second flow channel connectors (13) inside the pipe body (11), and the multiple second flow channel connectors (13) are communicated inside the pipe body (11).
Provided are an electrolyte, a battery, and an electric device. The electrolyte comprises a redox couple, the redox couple only has one oxidation potential, and the oxidation potential of the redox couple is 3.4-4.2 V.
Provided in the present application are a battery, a preparation method, a protective layer and an electric device. The protective layer is arranged between adjacent battery cells, and by means of the arrangement of the protective layer, a bonding layer can be separated from the battery cells, such that the influence the bonding layer introduced between adjacent battery cells has on the battery cells is reduced, and the cycle performance of a battery can thus be improved.
97.
POSITIVE ELECTRODE SHEET, PREPARATION METHOD THEREFOR, BATTERY AND ELECTRICAL DEVICE
A positive electrode sheet, a preparation method therefor, a battery and an electrical device. The positive electrode sheet comprises a positive electrode active material layer; and a capacity compensation layer, the capacity compensation layer being arranged on a side of the positive electrode active material layer, the capacity compensation layer comprising a catalyst and a capacity compensator, and the average particle size of the capacity compensator being less than or equal to 2 μm. Thus, the present application increases the probability that the catalyst is in contact with the capacity compensator, reduces the decomposition potential of the capacity compensator, increases the capacity retention rate of a battery, and prolongs the service life of the battery.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
An energy storage compartment (100), an energy storage device, an energy storage system (2000) and a charging network (1000), wherein the energy storage compartment comprises a compartment body (10), a control module (30) and a plurality of energy units (2). The dimension of the compartment body in a height direction is less than the dimension of a standard container in the height direction, the dimension of the compartment body in a length direction thereof is consistent with the dimension of the standard container in the length direction, and the dimension of the compartment body in a width direction thereof is consistent with the dimension of the standard container in the width direction. The plurality of energy units are accommodated in the compartment body. The control module is accommodated in the compartment body, wherein the control module comprises a main control module (303), the main control module being used for performing electrical control on the plurality of energy units. The weight of the energy storage compartment is less than or equal to 45 tons.
B65D 90/00 - Component parts, details or accessories for large containers
B65D 88/74 - Large containers having means for heating, cooling, aerating or other conditioning of contents
H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
99.
ENERGY STORAGE DEVICE, ENERGY STORAGE SYSTEM AND CHARGING NETWORK
An energy storage device, an energy storage system and a charging network. The energy storage device (100) comprises at least one energy compartment (10) and at least one control compartment (20), wherein the energy compartment (10) comprises a first compartment body (13) and an energy unit (12), the energy unit (12) being accommodated in the first compartment body (13); the dimension of the energy compartment (10) in a height direction thereof is less than the dimension of a standard container in a height direction thereof; the control compartment (20) is disposed outside the energy compartment (10); and the control compartment (20) comprises a second compartment body (21) and a control module (22), the control module (22) being accommodated in the second compartment body (21), and the control module (22) being used for performing electrical control on the energy unit (12) in the energy compartment (10).
This application relates to a lithium-ion battery, a battery, and an electric apparatus. The lithium-ion battery includes an electrolyte and a positive electrode plate. The electrolyte includes lithium salt, the lithium salt includes lithium hexafluorophosphate, and a mass proportion of the lithium hexafluorophosphate relative to a total mass of the electrolyte is 15% to 20%. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer disposed on at least one side of the positive electrode current collector and containing a positive electrode active material. This application can improve cycling performance of the lithium-ion battery.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 10/0567 - Liquid materials characterised by the additives
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
