WO2024000933A1 - Ensemble capuchon, batterie, module de batterie, bloc-batterie et véhicule - Google Patents

Ensemble capuchon, batterie, module de batterie, bloc-batterie et véhicule Download PDF

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Publication number
WO2024000933A1
WO2024000933A1 PCT/CN2022/126164 CN2022126164W WO2024000933A1 WO 2024000933 A1 WO2024000933 A1 WO 2024000933A1 CN 2022126164 W CN2022126164 W CN 2022126164W WO 2024000933 A1 WO2024000933 A1 WO 2024000933A1
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WO
WIPO (PCT)
Prior art keywords
battery
cover plate
cap assembly
battery core
explosion
Prior art date
Application number
PCT/CN2022/126164
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 WO2024000933A1 publication Critical patent/WO2024000933A1/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
    • H01M50/147—Lids or covers
    • 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
    • H01M50/317—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
    • H01M50/50—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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • 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.
  • the component is electrically connected to the battery core and the battery case is sealed.
  • the cap component in the related art cannot ensure a stable connection with the battery core tabs and at the same time ensure the heat dissipation effect of the battery core.
  • This application proposes a cap assembly that can achieve stable connection with the battery core while ensuring the heat dissipation effect of the battery core and extending the service life of the battery.
  • inventions of the present application provide 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 bus plate, the bus board is arranged in the housing, and the bus board is attached to the top of the battery core to be connected to the first pole lug of the battery core;
  • a cover plate is provided at the bottom end of the housing and is connected to the second pole lug of the battery core.
  • a welding portion and an explosion-proof valve are provided on the cover plate. The welding portion is relative to the The cover plate protrudes in a direction close to the battery core, and the explosion-proof valve protrudes relative to the cover plate in a direction away from the battery core.
  • a plurality of welding parts are provided, and a plurality of welding parts are arranged around the cover plate.
  • the welding parts and the explosion-proof valves are staggered.
  • the welding portion is arc-shaped, and the arc length of the welding portion is greater than half the radius of the battery core.
  • the width of the explosion-proof valve is less than half the radius of the housing.
  • the embodiment of the present application proposes a battery.
  • the connection with the battery core can be achieved stably while ensuring the heat dissipation effect of the battery core and extending the service life of the battery.
  • inventions of the present application provide 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 respectively connected to the cap assembly.
  • the battery core is connected to the housing.
  • the embodiment of the present application proposes a battery module that uses the above-mentioned battery to improve the voltage resistance of the entire battery, ensure structural stability, and extend the service life of the battery.
  • inventions of the present application provide a battery module.
  • the battery module includes a plurality of batteries as described above, and the plurality of batteries are arranged in multiple rows and in multiple columns.
  • the embodiment of the present application proposes a battery pack.
  • a battery pack By applying the above-mentioned battery module, it can achieve stable connection with the battery core while ensuring the heat dissipation effect of the battery core and extending the service life of the battery.
  • embodiments of the present application provide a battery pack, including a box and the above-mentioned battery module, and the battery module is disposed in the box.
  • the embodiment of the present application proposes a vehicle, which can achieve stable connection with the battery core while ensuring the heat dissipation effect of the battery core by applying the above-mentioned battery pack, thereby extending the service life of the battery.
  • embodiments of the present application provide 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 welding part of the cap assembly protrudes relative to the cover plate in a direction close to the battery core.
  • the explosion-proof valve of the cap assembly Relative to the cover plate, which protrudes in the direction away from the battery core, that is, there is a distance h 1 between the top surface of the cover plate and the bottom surface of the second pole tab, and there is a distance h 2 between the bottom surface of the explosion-proof valve and the bottom surface of the second pole tab, so that It can be seen that h 2 > h 1 > 0, so h 1 can be used to absorb the force generated when the battery core expands.
  • the height difference between h 2 and h 1 can be used to collect blasting gas, ensuring that the cover plate and the second electrode
  • the lug connection is stable while preventing the battery from spontaneous combustion and explosion due to excessive internal pressure, thereby improving battery safety.
  • This application has a simple structure and is easy to disassemble and assemble, and can achieve stable connection with the battery core while ensuring the heat dissipation effect on the battery core and extending the service life of the battery.
  • FIG. 1 is a schematic structural diagram of a battery module provided by a specific embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a battery provided by a specific embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of the battery provided by the specific embodiment of the present application in an explosion state
  • Figure 4 is a cross-sectional view of the battery provided by the specific 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 the specific 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.
  • FIG. 10 is a bottom view of another battery provided by the specific 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;
  • Figure 13 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
  • Battery 10. Vehicle; 101. Battery pack; 102. Car body; 1011. Battery module; 1012. Box;
  • 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 to a second feature may include the first feature being in direct contact with the second feature, or it may also include the first feature being in direct contact with the second feature. Two features are not in direct contact but are in contact through another feature between them. Furthermore, 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 10, which includes a vehicle body 102 and a battery pack 101.
  • the battery pack 101 is arranged in the vehicle body 102.
  • the battery pack 101 provides power to the vehicle body 102 to drive the vehicle body to move.
  • the battery pack 101 includes a box 1012 and a battery module 1011.
  • the battery module 1011 is arranged in the box 1012, and the box 1012 plays a role in fixing and protecting the battery module 1011.
  • the battery module includes multiple batteries 1 , and the multiple batteries 1 are arranged in multiple rows and in multiple columns. The number and specific arrangement of batteries 1 can be adjusted according to actual conditions, and are not 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 It is configured so that a gap exists between the top end of the bus plate 112 and the bottom end of the terminal 113 .
  • By providing the energy-absorbing structure 114 it can play a 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. It can be understood that by providing the sealing ring 1141, the sealing between the terminal 113 and the housing 12 can be achieved, and the safety of use of the cap assembly 11 can be ensured. And through the cooperation of the sealing ring 1141 and the plastic gasket 1142, 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 absorb the pressure generated by the expansion of the battery core 13 due to charging. .
  • 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 pressure, when the battery core 13 is expanded due to charging, the expansion pressure of the battery core 13 can also be absorbed through the first annular groove 11421 and the second annular groove 11422.
  • 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 in contact with each other, and the side peripheral wall of the manifold 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.
  • the explosion-proof valve 1112 is located relative to the cover plate. 111 protrudes in a direction away from the battery core 13, and is welded to the second pole lug 132 of the battery core 13 through the welding portion 1111, and has an explosion-proof function for the battery core 13 through the explosion-proof valve 1112.
  • the explosion-proof valve 1112 protrudes relative to the cover plate 111 in a direction away from the battery core 13 , that is, the top surface of the cover plate 111 is in contact with the second pole lug.
  • the bottom surface of 132 has a distance h 1
  • the bottom surface of the explosion-proof valve 1112 and the bottom surface of the second pole lug 132 have a distance h 2 , so it can be seen that h 2 > h 1 > 0, so h 1 can be used to absorb the energy generated when the battery core 13 expands
  • the force, the height difference between h 2 and h 1 can be used to collect the blasting gas, ensure the stable connection between the cover plate 111 and the second pole tab 132, avoid the spontaneous combustion and explosion of the battery 1 due to excessive internal pressure, and improve Battery 1 safety.
  • the 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 The gas release causes damage to the surroundings of the battery 1 .
  • multiple welding portions 1111 are provided, and the plurality of 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 portion 1111 is arc-shaped, and the arc length of the welding portion 1111 is greater than half the radius of the battery core 13 to ensure as much as possible the contact area between the battery core 13 and the cover plate 111. Maximum, improve the stability of the electrical connection between the two.
  • the welding part 1111 may also have other shapes, as long as the welding part 1111 and the second pole tab 132 can be welded stably, which is not limited in this embodiment.
  • 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 parts 1111 and the explosion-proof valves 1112 are staggered to ensure balanced force on the entire cover 111 to improve gas circulation within 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, can enhance the strength of the entire cover plate 111, and can also facilitate the subsequent accurate welding of the second pole tab 132 and the welding portion 1111 to avoid welding.
  • 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 to improve the constraining ability of the second pole tab 132 and avoid the second pole tab 132 from being offset 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 weld bead portion 15 can be formed at the connection between the shell 12 and the cover plate 111 , which not only facilitates welding and reduces stress concentration, but also improves the stability of the connection between the cover plate 111 and the shell 12 sex.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un ensemble capuchon, une batterie, un module de batterie, un bloc-batterie et un véhicule. L'ensemble capuchon (11) est utilisé pour une batterie (1) ; la batterie (1) comprend un élément de batterie (13) et un boîtier (12) pour recevoir l'élément de batterie (13) ; l'ensemble capuchon (11) comprend un disque de convergence (112) et une plaque de recouvrement (111) ; le disque de convergence (112) est disposé dans le boîtier (12), et le disque de convergence (112) est fixé à la partie supérieure de l'élément de batterie (13) de façon à être relié à des premières languettes d'électrode (131) de l'élément de batterie (13) ; la plaque de recouvrement (111) est disposée au fond du boîtier (12) et est reliée à des secondes languettes d'électrode (132) de l'élément de batterie (13) ; des parties de soudure (1111) et des soupapes antidéflagrantes (1112) sont agencées sur la plaque de recouvrement (111) ; chacune des parties de soudure (1111) fait saillie dans le sens proche de l'élément de batterie (13) par rapport à la plaque de recouvrement (111) ; et chacune des soupapes antidéflagrantes (1112) fait saillie dans le sens s'éloignant de l'élément de batterie (13) par rapport à la plaque de recouvrement (111). Selon l'ensemble capuchon de la présente invention, un effet de dissipation de chaleur sur l'élément de batterie est assuré tandis qu'une connexion stable avec l'élément de batterie peut être obtenue, et ainsi, la durée de vie de la batterie est prolongée.
PCT/CN2022/126164 2022-06-28 2022-10-19 Ensemble capuchon, batterie, module de batterie, bloc-batterie et véhicule WO2024000933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221650564.6 2022-06-28
CN202221650564.6U CN217788572U (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
WO2024000933A1 true WO2024000933A1 (fr) 2024-01-04

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WO (1) WO2024000933A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030203280A1 (en) * 2002-04-24 2003-10-30 Shinji Hamada Sealed rechargeable battery
CN212323103U (zh) * 2020-05-26 2021-01-08 大连中比能源科技有限公司 锂电池用外壳及锂电池
CN214625324U (zh) * 2021-04-02 2021-11-05 合肥国轩高科动力能源有限公司 一种全极耳电池
CN113725532A (zh) * 2021-08-25 2021-11-30 远景动力技术(江苏)有限公司 电池盖板、电池及电池的加工方法
CN114142079A (zh) * 2021-11-24 2022-03-04 欣旺达电动汽车电池有限公司 圆柱电池及其制作方法
CN115020884A (zh) * 2022-06-28 2022-09-06 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
CN217788587U (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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030203280A1 (en) * 2002-04-24 2003-10-30 Shinji Hamada Sealed rechargeable battery
CN212323103U (zh) * 2020-05-26 2021-01-08 大连中比能源科技有限公司 锂电池用外壳及锂电池
CN214625324U (zh) * 2021-04-02 2021-11-05 合肥国轩高科动力能源有限公司 一种全极耳电池
CN113725532A (zh) * 2021-08-25 2021-11-30 远景动力技术(江苏)有限公司 电池盖板、电池及电池的加工方法
CN114142079A (zh) * 2021-11-24 2022-03-04 欣旺达电动汽车电池有限公司 圆柱电池及其制作方法
CN115020884A (zh) * 2022-06-28 2022-09-06 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
CN217788587U (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

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