WO2024000945A1 - Ensemble couvercle d'extrémité, batterie, module de batterie, bloc-batterie et véhicule - Google Patents

Ensemble couvercle d'extrémité, batterie, module de batterie, bloc-batterie et véhicule Download PDF

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Publication number
WO2024000945A1
WO2024000945A1 PCT/CN2022/127033 CN2022127033W WO2024000945A1 WO 2024000945 A1 WO2024000945 A1 WO 2024000945A1 CN 2022127033 W CN2022127033 W CN 2022127033W WO 2024000945 A1 WO2024000945 A1 WO 2024000945A1
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WO
WIPO (PCT)
Prior art keywords
battery
cap assembly
cover plate
assembly according
explosion
Prior art date
Application number
PCT/CN2022/127033
Other languages
English (en)
Chinese (zh)
Inventor
吴迪
李开波
何巍
刘金成
Original Assignee
湖北亿纬动力有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Publication of WO2024000945A1 publication Critical patent/WO2024000945A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/358—External gas exhaust passages located on the battery cover or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, for example, to a cap assembly, a battery, a battery module, a battery pack and a vehicle.
  • Batteries are widely used in daily life. Batteries in related technologies mainly include battery cells, battery casings and cap components.
  • the battery cells are placed in the battery casing and the tabs of the battery cells are bent and brought together and then connected to the cap component to achieve capping.
  • This application provides a cap assembly that can avoid damage to the tabs during the assembly process and extend the service life of the battery.
  • the application provides a cap assembly for a battery.
  • the battery includes a battery core and a shell for accommodating the battery core.
  • the cap assembly includes:
  • a cover plate is provided at the bottom end of the housing, and a limiting portion is also provided at the outer peripheral edge of the cover plate.
  • the limiting portion is closer to the battery core relative to the cover plate. The direction protrudes to surround the tabs of the battery core.
  • the pole includes a first pole and a second pole, and the limiting portion can surround the second pole and be in contact with a surface of the second pole.
  • the cap assembly further includes a manifold, the manifold is disposed in the housing, and the manifold is attached to the top of the battery core to connect with the first pole lug of the battery core.
  • the cover plate is further provided with a welding portion and an explosion-proof valve.
  • the welding portion protrudes relative to the cover plate in a direction close to the battery core.
  • the explosion-proof valve is arranged relative to the cover. The plate protrudes in a direction away from the battery core.
  • a plurality of welding parts and explosion-proof valves are respectively provided, and a plurality of welding parts and explosion-proof valve rings are provided on the cover plate.
  • the welding parts and the explosion-proof valves are staggered.
  • the cover plate is further provided with a liquid injection hole, the liquid injection hole coincides with the axis of the battery core, and the cover plate moves closer to the battery core along the edge of the liquid injection hole.
  • the direction of the core protrudes to form a liquid injection boss.
  • This application provides a battery that can prevent tab damage during assembly and extend the service life of the battery.
  • the present application provides a battery.
  • the battery includes a battery core, a casing and a cap assembly as described above.
  • the casing is used to accommodate the battery core, and the cap assembly is connected to the battery cell respectively.
  • the core is connected to the shell.
  • This application provides a battery module that can avoid tab damage during the assembly process and extend the service life of the battery.
  • the present application provides a battery module.
  • the battery module includes a plurality of batteries as described above, and a plurality of the batteries are arranged in multiple rows and columns.
  • This application provides a battery pack that can prevent tab damage during assembly and extend the service life of the battery.
  • the present application provides a battery pack, including a box and the above-mentioned battery module, and the battery module is arranged in the box.
  • This application provides a vehicle that can avoid pole tab damage during assembly and extend the service life of the battery.
  • the present application provides a vehicle, including a vehicle body and a battery pack as described above, and the battery pack is disposed in the vehicle body.
  • This application provides a cap assembly, a battery, a battery module, a battery pack and a vehicle.
  • the use of the limiting portion provided on the cover can not only enhance the strength of the entire cover, but also surround the tabs to prevent the installation of the battery during assembly.
  • the pole lug can also be positioned to facilitate the subsequent accurate welding of the pole lug and the cover plate, so as to avoid the pole lug being forced to shift during the welding process and causing it to be close to the inner wall of the case, thereby causing welding Defective, resulting in poor performance of the battery core.
  • the application has a simple structure and is easy to disassemble and assemble, which can prevent the tabs from being damaged during the assembly process and extend the service life of the battery.
  • Figure 1 is a schematic structural diagram of a battery module provided by an exemplary embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a battery provided by an exemplary embodiment of the present application.
  • Figure 3 is a schematic structural diagram of the battery in an exploded state according to the exemplary embodiment of the present application.
  • Figure 4 is a cross-sectional view of a battery provided by an example embodiment of the present application.
  • Figure 5 is a partial enlarged structural diagram of position A in Figure 4.
  • Figure 6 is a partial enlarged structural diagram of B in Figure 4.
  • Figure 7 is a bottom view of a battery provided by an exemplary embodiment of the present application.
  • Figure 8 is a schematic cross-sectional structural diagram along the C-C direction in Figure 7;
  • Figure 9 is a partial enlarged structural diagram of D in Figure 8.
  • Figure 10 is a bottom view of another battery provided by an example embodiment of the present application.
  • Figure 11 is a schematic cross-sectional structural diagram along the E-E direction in Figure 10;
  • Figure 12 is a partial enlarged structural diagram of F in Figure 11.
  • Cap assembly 111. Cover plate; 1111. Welding part; 1112. Explosion-proof valve; 11121. Explosion-proof notch; 1113. Limiting part; 1114. Liquid injection hole; 112. Manifold; 113. Terminal; 114. Suction Energy structure; 1141, sealing ring; 1142, plastic gasket; 11421, first annular groove; 11422, second annular groove; 11423, isolation part;
  • Battery core 131. First pole tab; 132. Second pole tab;
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral body.
  • It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • the specific meanings of the above terms in this application can be understood on a case-by-case basis.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • This embodiment provides a vehicle, which includes a vehicle body and a battery pack.
  • the battery pack is arranged in the vehicle body, and the battery pack provides power to the vehicle body to drive the vehicle body to move.
  • the battery pack includes a box and a battery module.
  • the battery module is arranged in the box, that is, the battery module is fixed and protected through the box.
  • the battery module in order to maximize the maximum amount of electricity that can be stored by the entire battery module, the battery module includes multiple batteries 1 arranged in multiple rows and columns. The number and specific arrangement of batteries 1 can be adjusted according to actual conditions, and are not specifically limited in this embodiment.
  • the battery includes a battery core 13, a casing 12 and a cap assembly 11.
  • the casing 12 is used to accommodate the battery core 13.
  • the cap assembly 11 is connected to the battery core 13 and the casing 12 respectively.
  • the cap assembly 11 includes a cover plate 111 , a manifold plate 112 and a terminal 113 .
  • the cover plate 111 is arranged at the bottom end of the housing 12 and is connected to the second pole lug 132 of the battery core 13 .
  • the manifold plate 112 is attached to the battery core 13
  • the top end is connected to the first pole lug 131 of the battery core 13.
  • the terminal 113 is passed through the top end of the housing 12 and is electrically connected to the bus plate 112. There is a gap between the top end of the bus board 112 and the bottom end of the terminal 113.
  • the first pole tab 131 is a positive pole tab
  • the second pole tab 132 is a negative pole tab.
  • the cap assembly 11 in this embodiment creates a gap between the bus plate 112 and the terminal 113 to avoid friction and collision during assembly and use, ensuring the working performance and service life of the battery 1 as much as possible, and also ensuring the battery 1 as long as possible.
  • the number of parts required for the cap assembly 11 is reduced, manufacturing costs are saved, and disassembly and assembly procedures are reduced.
  • the cap assembly 11 can avoid friction and collision during assembly and use, ensure the working performance and service life of the battery 1 as much as possible, and can also reduce the number of parts required for the cap assembly 11 as much as possible, saving manufacturing costs, and The disassembly and assembly process is reduced.
  • the cap assembly 11 also includes an energy-absorbing structure 114 .
  • the energy-absorbing structure 114 is connected to the terminal 113 , the housing 12 and the manifold 112 respectively, and the energy-absorbing structure 114 is configured as A gap can be provided between the top end of the bus plate 112 and the bottom end of the terminal 113 .
  • the energy-absorbing structure 114 can also play a certain shock-absorbing and buffering role between the terminal 113, the housing 12, and the busbar 112, thereby enhancing the ability of the battery 1 to withstand vibration and impact, and extending the service life of the entire battery 1. .
  • the energy-absorbing structure 114 includes a sealing ring 1141 and a plastic gasket 1142.
  • the sealing ring 1141 is located between the housing 12 and the terminal 113.
  • the plastic gasket 1142 is located between the housing 12 and the manifold 112, and the sealing ring 1141 passes through On the plastic pad 1142.
  • the sealing ring 1141 By providing the sealing ring 1141, the sealing between the terminal 113 and the housing 12 can also be achieved, thereby ensuring the safety of the cap assembly 11.
  • a gap exists between the top end of the bus plate 112 and the bottom end of the terminal 113.
  • the material of the sealing ring 1141 may be electrolyte-resistant rubber or elastic plastic.
  • the surface of the plastic pad 1142 is concave and convex to absorb the stress generated by the plastic pad 1142 when it swells, reduce the pressure of the stress on the battery core 13 and the housing 12, and also absorb the stress caused by the expansion of the battery core 13 due to charging. pressure.
  • a plurality of first annular grooves 11421 are provided on the top surface of the plastic pad 1142.
  • the plurality of first annular grooves 11421 are equidistantly distributed in the radial direction to improve the shock absorption and buffering effect of the entire energy-absorbing structure 114.
  • a plurality of second annular grooves 11422 are provided on the bottom surface of the plastic pad 1142, and the plurality of second annular grooves 11422 are equidistantly distributed in the radial direction.
  • the plastic pad 1142 will swell in the electrolyte of the battery 1.
  • the first annular groove 11421 and the second annular groove 11422 can absorb the stress generated by the plastic pad 1142 when it swells and reduce the stress on the battery core 13 and the case. 12. In addition, when the battery core 13 is expanded due to charging, the first annular groove 11421 and the second annular groove 11422 can also absorb the expansion pressure of the battery core 13.
  • first annular groove 11421 and the second annular groove 11422 are staggered, so that the surface of the plastic pad 1142 is uneven to enhance the shock-absorbing and buffering effect of the entire plastic pad 1142.
  • the edge of the plastic pad 1142 extends in the direction close to the manifold 112 to form an isolation part 11423.
  • the plastic pad 1142 can be covered on the manifold 112 through the isolation part 11423.
  • the side of the isolation part 11423 away from the manifold 112 is in contact with the shell.
  • the inner wall of the body 12 is close to each other, that is, the side peripheral wall of the manifold plate 112 is separated from the inner wall of the case 12 through the isolation portion 11423, thereby avoiding direct contact between the manifold plate 112 and the case 12 and improving the voltage resistance of the entire battery 1.
  • manifold 112 is made of aluminum.
  • the cover plate 111 is provided with a welding portion 1111 and an explosion-proof valve 1112.
  • the welding portion 1111 protrudes relative to the cover plate 111 in a direction close to the battery core 13, and the explosion-proof valve 1112 is located relative to the cover plate.
  • 111 protrudes in a direction away from the battery core 13 , that is, the welding portion 1111 is welded to the second pole lug 132 of the battery core 13 , and the explosion-proof valve 1112 serves as an explosion-proof function for the battery core 13 .
  • the explosion-proof valve 1112 protrudes in a direction away from the battery core 13 relative to the cover plate 111 , that is, the top surface of the cover plate 111 is in contact with the second pole.
  • the bottom surface of the pole tab 132 has a distance h 1
  • the bottom surface of the explosion-proof valve 1112 and the bottom surface of the second pole tab 132 have a distance h 2 .
  • the maximum width of the explosion-proof valve 1112 is less than half the radius of the housing 12 to minimize the exhaust space required for the entire battery module.
  • the explosion-proof valve 1112 is provided with an explosion-proof score 11121, and the explosion-proof score 11121 is formed by stamping, so that when the internal pressure of the battery 1 is too high, the gas in the casing 12 can be released along the explosion-proof score 11121, reducing The gas release causes damage to the surroundings of the battery 1 .
  • multiple welding portions 1111 are provided, and the multiple welding portions 1111 are arranged in a ring on the cover plate 111 to ensure the stability of the connection with the second pole tab 132 .
  • three welding parts 1111 are provided.
  • the welding part 1111 is arc-shaped, and the maximum optimal arc length of the welding part 1111 is greater than half the radius of the battery core 13 to ensure the largest contact area between the battery core 13 and the cover 111 as much as possible, and improve the stability of the electrical connection between the two.
  • the welding portion 1111 can also have other shapes, as long as the welding portion 1111 and the second pole tab 132 can be welded stably, this embodiment does not impose any specific restrictions.
  • multiple explosion-proof valves 1112 are provided, and the multiple explosion-proof valves 1112 are respectively arranged around the cover plate 111 to improve the explosion-proof performance.
  • three explosion-proof valves 1112 are provided.
  • the welded portions 1111 and the explosion-proof valves 1112 are staggered to ensure balanced force on the entire cover 111 and improve gas circulation in the housing 12 .
  • the cover plate 111 is also provided with a liquid injection hole 1114 for liquid injection or exhaust.
  • the liquid injection hole 1114 coincides with the axis of the battery core 13 , that is, the liquid injection hole 1114 is provided in the center of the cover plate 111 to ensure balanced force on the entire cover plate 111 .
  • the cover plate 111 protrudes along the edge of the liquid injection hole 1114 in a direction close to the battery core 13 to form a liquid injection boss, thereby increasing the structural strength of the middle part of the cover plate 111 .
  • a limiting portion 1113 is also provided at the outer peripheral edge of the cover 111 .
  • the limiting portion 1113 protrudes toward the battery core 13 relative to the cover 111 to surround the second battery core 13 .
  • the pole tab 132 that is, the positioning of the second pole tab 132 through the limiting portion 1113, not only enhances the strength of the entire cover plate 111, but also facilitates the subsequent accurate welding of the second pole tab 132 and the welding portion 1111 to avoid During the welding process, the second pole tab 132 is deflected due to force and is close to the inner wall of the casing 12 , resulting in poor welding and poor performance of the battery core 13 .
  • the limiting portion 1113 can surround the second pole tab 132, damage to the second pole tab 132 when assembling the battery core 13 can also be avoided.
  • the surface of the limiting portion 1113 in contact with the second pole tab 132 is inclined, that is, the cross section of the limiting portion 113 gradually becomes smaller in the direction from the second pole tab 132 to the first pole tab 131, so as to Improve the restraint ability of the second pole tab 132 and avoid the deviation of the second pole tab 132 as much as possible.
  • the cover plate 111 that is, the outer peripheral edge of the cover plate 111 and the outer edge of the case 12 are soldered.
  • the bottom ends are welded together, so that the solder portion 14 is formed at the connection between the housing 12 and the cover 111 , thereby achieving a stable connection between the cover 111 and the housing 12 .
  • a first chamfer can also be provided on the housing 12 along the edge of the opening, and a corresponding second chamfer can be provided on the cover 111 .
  • the welding bead 15 can be formed at the connection between the casing 12 and the cover 111, which not only facilitates welding and reduces stress concentration, but also improves the connection between the cover 111 and the casing 12. of stability.
  • the cover plate 111 in the embodiment of the present application is nickel-plated low carbon steel (nickel plating layer thickness 0.5 ⁇ m-3 ⁇ m), stainless steel, or nickel-plated copper.
  • the material of the housing 12 in the embodiment of the present application is nickel-plated low carbon steel or stainless steel.
  • the material of the second pole tab 132 in the embodiment of the present application is nickel-plated copper or copper.
  • the nickel plating layer on the cover 111 and the nickel plating layer on the nickel-plated shell are made of the same material to facilitate welding and can also reduce the internal resistance of the material.
  • the low carbon steel base material has a high resistivity. By plating a layer of nickel on both the front and back surfaces of the low carbon steel base material, it is easy to weld with the (nickel-plated) shell and the resistance can be reduced at the same time. The resistivity of stainless steel will be high, but after welding with the (nickel-plated) shell, it can effectively prevent the (nickel-plated) shell from rusting.
  • the copper base material has a low resistivity. By plating a layer of nickel on both the front and back surfaces of the copper base material, it is easy to weld with the (nickel-plated) shell.
  • the cover plate 111 is welded to the second pole tab 132.
  • the second pole tab 132 is made of copper.
  • the surface of the second pole tab 132 is also plated with nickel, and the surface of the cover plate 111 is also plated with a layer of nickel. At the same time, nickel also helps the solder joints resist corrosion.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

La présente invention concerne un ensemble couvercle d'extrémité, une batterie, un module de batterie, un bloc-batterie et un véhicule. L'ensemble couvercle d'extrémité est appliqué à une batterie, qui comprend une plaque de couvercle. La plaque de couvercle est disposée au niveau d'une extrémité inférieure d'un boîtier, et une partie de limitation de position est en outre disposée au niveau d'un bord circonférentiel externe de la plaque de couvercle. La partie de limitation de position fait saillie vers un élément de batterie par rapport à la plaque de couvercle de façon à entourer une languette de l'élément de batterie.
PCT/CN2022/127033 2022-06-28 2022-10-24 Ensemble couvercle d'extrémité, batterie, module de batterie, bloc-batterie et véhicule WO2024000945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221649846.4 2022-06-28
CN202221649846.4U CN217788587U (zh) 2022-06-28 2022-06-28 一种盖帽组件、电池、电池模组、电池包及车辆

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Publication Number Publication Date
WO2024000945A1 true WO2024000945A1 (fr) 2024-01-04

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WO (1) WO2024000945A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217788572U (zh) * 2022-06-28 2022-11-11 湖北亿纬动力有限公司 一种盖帽组件、电池、电池模组、电池包及车辆
CN115911692B (zh) * 2023-03-14 2023-06-02 常州武进中瑞电子科技股份有限公司 一种电池钢帽

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