WO2023142620A1 - Ensemble couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique - Google Patents

Ensemble couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique Download PDF

Info

Publication number
WO2023142620A1
WO2023142620A1 PCT/CN2022/132548 CN2022132548W WO2023142620A1 WO 2023142620 A1 WO2023142620 A1 WO 2023142620A1 CN 2022132548 W CN2022132548 W CN 2022132548W WO 2023142620 A1 WO2023142620 A1 WO 2023142620A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure relief
boss
top cover
relief hole
battery
Prior art date
Application number
PCT/CN2022/132548
Other languages
English (en)
Chinese (zh)
Inventor
杜香龙
许虎
金义矿
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2023142620A1 publication Critical patent/WO2023142620A1/fr

Links

Images

Classifications

    • 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 of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • 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 of a single cell or a single battery
    • 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
    • H01M50/30—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
    • 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, in particular to an end cover assembly, a battery cell, a battery and electrical equipment.
  • the top cover of the positive and negative electrodes of the cylindrical battery is generally assembled by superimposing the top cover and the adapter part and placing a plastic between the two.
  • the adapter part is used to conduct the pole and the tab.
  • a double explosion-proof valve design is adopted on the top cover of the positive and negative electrodes and a pressure relief design is opened on the transfer part. , the position of the opening on the adapter part is staggered from the explosion-proof valve on the top cover.
  • An end cover assembly which is connected to one end of the battery shell, the end cover assembly includes a top cover, a transfer part and a support part, the top cover has a first pressure relief hole, the transfer part is connected to the top cover, and the transfer part There is a second pressure relief hole, and the second pressure relief hole and the first pressure relief hole are arranged in a staggered direction in the penetrating direction of the first pressure relief hole.
  • the supporting member is supported between the top cover and the transition part and is configured to space the top cover and the transition part.
  • the setting of the first pressure relief hole and the second pressure relief hole is to provide a pressure relief explosion-proof valve for the battery cell after the thermal runaway of the battery cell occurs.
  • the top cover and the transfer part The non-metallic substance in between is melted, and the support can support the top cover and the transfer part, preventing the top cover from sticking to the transfer part, so that the pressure relief channel between the first pressure relief hole and the second pressure relief hole is kept at all times. unimpeded.
  • the gas can burst through the first pressure relief hole on the top cover along the pressure relief passage to complete the pressure relief, resulting in an explosion-proof effect.
  • the supporting member includes a boss, and the boss is supported between the top cover and the transition part, so as to form a certain distance between the top cover and the transition part to ensure the continuous unblocking of the pressure relief channel.
  • the boss is arranged on at least one of the two surfaces of the top cover and the adapter part facing each other, that is, the boss can include a plurality of bosses, and the plurality of bosses can be arranged on the top cover facing the adapter part. On the side surface, it can also be arranged on the surface of the adapter part facing the side of the top cover, or it can be arranged on the two surfaces of the top cover and the adapter part facing each other.
  • the boss includes a first boss and a second boss; the first boss and the second boss are respectively provided on the top cover and the transition part, and, in the through direction of the first pressure relief hole On the top, the height of the first boss and the second boss are equal and staggered from each other.
  • the distance between the top cover and the assembly ground of the transition part is uniform, and the situation that one side of the top cover is higher and the other side is low after the top cover and the transition part are assembled will not occur.
  • the first boss is configured as an arc segment surrounding the outer periphery of the first pressure relief hole.
  • the first boss surrounds the periphery of the first pressure relief hole to form a certain restriction and guiding effect, so that the gas generated by thermal runaway can flow along a predetermined flow path and flow out from the first pressure relief hole for pressure relief.
  • the first boss is disposed on a side of the first pressure relief hole away from the second pressure relief hole. There is no blocking structure between the first pressure relief hole and the second pressure relief hole to affect the flow of gas generated by thermal runaway.
  • the second boss is configured in an arc shape surrounding the outer periphery of the second pressure relief hole.
  • the second boss surrounds the periphery of the second pressure relief hole to form a certain restriction and guiding effect, so that the gas generated by thermal runaway flows out of the second pressure relief hole along a predetermined flow track, and then flows to the first pressure relief hole.
  • the second boss is configured in an arc shape surrounding the outer periphery of the second pressure relief hole. There is no blocking structure between the first pressure relief hole and the second pressure relief hole to affect the flow of gas generated by thermal runaway.
  • the height of the top cover and the transition component supported by the boss in the direction through the first pressure relief hole is 1mm-2mm. In this way, while ensuring the effect of preventing thermal runaway, it is avoided that the distance between the top cover and the adapter part is too large to affect the structural strength of the battery cell.
  • the end cover assembly also includes a lower plastic, the lower plastic is arranged between the top cover and the adapter part; the boss is arranged between the top cover and the lower plastic, and the lower plastic is opposite to the end cover assembly itself and the adapter Insulate itself.
  • the end cover assembly also includes a lower plastic, the lower plastic is arranged between the top cover and the adapter part; the boss is arranged between the lower plastic and the adapter part, and the lower plastic is opposite to the end cover assembly itself and The parts themselves are insulated.
  • the transition part includes a pole transition section, a tab transition section and a bent section, the pole transition section is connected to the top cover, and the tab transition section is connected to the tab of the electrode assembly.
  • the second pressure relief hole is opened in the tab transition section, and the bending section is bent and connected between the pole transition section and the tab transition section. Therefore, the transition part can realize the transition function between the pole and the tab.
  • the top cover is made of aluminum, and the transition part is made of copper, so as to improve the conduction effect.
  • a battery cell including a casing, an end cap assembly as described in any of the above embodiments arranged at one end of the casing, and an electrode arranged in the casing and connected to the end cap assembly components.
  • a battery including the battery cell described in the above embodiments.
  • an electric device comprising the battery described in any one of the above embodiments, and the battery is used to provide electric energy.
  • FIG. 1 is a schematic diagram of an exploded structure of a battery cell provided by an embodiment of the present application
  • Fig. 2 is a schematic diagram of an exploded structure of an end cap assembly provided by another embodiment of the present application.
  • Fig. 3 is a schematic diagram of the assembly structure of the transition part and the support in the end cap assembly provided in Fig. 2;
  • FIG. 4 is a schematic diagram of an exploded structure of another embodiment of the end cap assembly provided in FIG. 1;
  • FIG. 5 is a schematic diagram of the assembly structure of the transition part and the support member in the end cap assembly provided in FIG. 4 .
  • Power batteries are not only used in energy storage power systems such as hydraulic, thermal, wind and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, as well as military equipment and aerospace and other fields . With the continuous expansion of power battery application fields, its market demand is also constantly expanding.
  • the positive and negative top covers are generally assembled by superimposing the top cover and the adapter part and placing a plastic between the two.
  • the adapter part is used to conduct the pole and the tab.
  • double explosion-proof valve design is usually adopted on the top cover of the positive and negative electrodes and a pressure relief design is opened on the transfer part. Liquid, the position of the opening on the adapter part is set in a staggered manner with the explosion-proof valve on the top cover.
  • a common pressure relief channel can be constructed between the top cover and the transfer part, even when the battery is thermally runaway. At this time, the gas can still be released through the pressure relief channel, so as to avoid further dangers such as explosion of the battery.
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, which are not limited in the embodiments of the present application.
  • the battery cell can be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square battery cells and pouch battery cells, which are not limited in this embodiment of the present application.
  • a battery cell generally includes a casing, an electrode assembly, an electrode terminal, and an adapter part.
  • the electrode assembly is arranged inside the casing, and is electrically connected to the electrode terminal through the transition part.
  • the electrode terminals are exposed outside the housing for electrical connection with an external circuit. Electrolyte is injected into the casing and enters between the pole pieces of the electrode assembly, and electrochemically reacts with the active material on the pole pieces to generate a charging and discharging process.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack, and the like.
  • Batteries generally include a case for enclosing one or more battery cells. The box can prevent liquid or other foreign objects from affecting the charging or discharging of the battery cells.
  • the present application provides an end cap assembly, a battery cell, a battery and an electrical device.
  • the battery includes a plurality of battery cells and a battery box arranged outside the battery cells.
  • Electrical devices can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and power tools, etc.
  • Vehicles can be fuel vehicles, gas vehicles or new energy vehicles, and new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles; spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.; electric toys include fixed Type or mobile electric toys, such as game consoles, electric car toys, electric boat toys and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, for example, Electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, electric planers, and more.
  • the embodiment of the present application does not impose special limitations on the above electric equipment.
  • the electric device as a vehicle as an example.
  • the interior of the vehicle disclosed in some embodiments of the present application is provided with a battery, and the battery may be provided at the bottom, head or tail of the vehicle. Batteries may be used to power the vehicle, for example, the battery may serve as an operating power source for the vehicle.
  • the battery can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.
  • the battery generally includes a case body and a battery cell 1000 .
  • the box body defines an accommodating cavity for accommodating battery cells 1000 , and there may be one or more battery cells 1000 . If there are multiple battery cells 1000 , the multiple battery cells 1000 can be connected in series, parallel or mixed.
  • the mixed connection means that the multiple battery cells 1000 are both connected in series and in parallel.
  • a plurality of battery cells 1000 may be connected in series, in parallel or mixed to form a whole, and accommodated in the box. It may also be that all the battery cells 1000 are directly connected in series, parallel or mixed together, and then all the battery cells 1000 are housed in the box to realize the assembly of the battery cells 1000 and the box.
  • the battery may also include other structures, which will not be detailed here.
  • some embodiments of the present application also disclose an end cover assembly 100 of a battery cell 1000 , which is fitted to one end of the casing 200 of the battery cell 1000 and can be set
  • the positive end cap of the battery cell 1000 is formed on the positive pole 400 side of the battery cell 1000
  • the negative end cap of the battery cell 1000 can also be formed on the negative pole 400 side of the battery cell 1000 .
  • the end cover assembly 100 includes a top cover 10, an adapter part 20 and a support member 30, the top cover 10 is provided with a first pressure relief hole 11, the transfer part 20 is connected with the top cover 10, and the transfer part 20 is provided with a first Two pressure relief holes 221 , the second pressure relief hole 221 and the first pressure relief hole 11 are arranged in a staggered direction in the through direction of the first pressure relief hole 11 .
  • the supporting member 30 is supported between the top cover 10 and the transition part 20 and is configured to space the top cover 10 and the transition part 20 .
  • the adapter part 20 of the battery cell 1000 is generally an element used to electrically transfer the tab of the electrode assembly 300 and the pole 400, and the adapter part 20 is usually set relatively thin. For example, 0.2 millimeters (mm), resulting in insufficient support strength.
  • the transition member 20 is easily deformed due to its low strength, thereby blocking the first pressure relief hole 11 , which will also cause the thermal runaway of the battery cell 1000 to fail to release pressure.
  • the supporting member 30 is arranged between the top cover 10 and the adapter part 20 to separate the two. Even if the adapter part 20 is deformed, the gas can still flow from the space between the two to the first leak. Press the holes 11 to avoid fire and explosion accidents caused by thermal runaway of the battery cells 1000 .
  • the setting of the first pressure relief hole 11 and the second pressure relief hole 221 is to provide a pressure relief explosion-proof valve for the battery cell 1000 after the battery cell 1000 thermal runaway occurs, and when the battery cell 1000 thermal runaway occurs, the top
  • the non-metallic substance between the cover 10 and the transition part 20 is melted, and the support 30 can support the top cover 10 and the transition part 20, preventing the top cover 10 from sticking to the transition part 20, so that the first pressure relief hole 11 and the transition part 20
  • the pressure relief channels between the second pressure relief holes 221 are kept unblocked at all times.
  • the gas can burst through the first pressure relief hole 11 on the top cover 10 along the pressure relief channel to complete the pressure relief, which produces an explosion-proof effect, thereby avoiding the occurrence of thermal runaway of the battery cell 1000, so that the battery cell 1000 can be set according to the predetermined As a result, the thermal runaway prevention of the battery cell 1000 is accomplished.
  • the support 30 includes a boss, and the boss is supported between the top cover 10 and the transition part 20 to form a certain distance between the top cover 10 and the transition part 20 to ensure a pressure relief channel. continuous flow.
  • the material of the boss can be made of corrosion-resistant metal, which will not change in shape due to high temperature and corrosion of chemical materials, so as to ensure the effectiveness of preventing thermal runaway.
  • the boss is arranged on at least one of the two surfaces of the top cover 10 and the adapter part 20 facing each other, that is, the boss can include a plurality of bosses, and a plurality of bosses can be arranged on the top cover 10 facing to each other.
  • the surface on one side of the adapter part 20 can also be arranged on the surface of the adapter part 20 facing the top cover 10 , or can be arranged on both surfaces of the top cover 10 and the adapter part 20 facing each other. In the present application, whether the boss is arranged on the top cover 10 or the adapter part 20 has no influence on the effect of preventing thermal runaway of the boss.
  • the preferred number of bosses is 1-2.
  • the setting boss includes the first boss 31 and the second boss 32
  • the first boss 31 and the second boss 32 are respectively arranged on the top cover 10 and the adapter part 20, and, in the first pressure relief hole In the through direction of 11, the first boss 31 and the second boss 32 are equal in height and staggered from each other.
  • the spacing distance between the top cover 10 and the adapter part 20 is uniform, and the situation that one side of the top cover 10 is higher and the other is lower after the top cover 10 and the adapter part 20 are assembled will not occur.
  • the first boss 31 is configured as an arc segment surrounding the outer periphery of the first pressure relief hole 11 .
  • the first boss 31 surrounds the periphery of the first pressure relief hole 11 to form a certain restriction and guiding effect, so that the gas generated by thermal runaway can flow along the predetermined flow path and flow out from the first pressure relief hole 11 for pressure relief .
  • the second boss 32 is configured as an arc shape surrounding the outer periphery of the second pressure relief hole 221, and the second boss 32 surrounds the periphery of the second pressure relief hole 221 to form a certain constraint and guiding effect, so that the heat The uncontrolled gas flows out from the second pressure relief hole 221 along a predetermined flow path, and then flows to the first pressure relief hole 11 .
  • the first boss 31 surrounding the outer periphery of the first pressure relief hole 11 is disposed on the side of the first pressure relief hole 11 facing away from the second pressure relief hole 221 , and is surrounded by the second pressure relief hole 221
  • the second boss 32 on the outer periphery is arranged on the side of the second pressure relief hole 221 away from the first pressure relief hole 11, so that there is no blocking structure between the first pressure relief hole 11 and the second pressure relief hole 221 to affect the occurrence of thermal runaway the flow of gas.
  • first boss 31 and the second boss 32 may not be arranged as arc segments, but may be arranged in other rectangular or polygonal shapes with openings, which are not limited in this application.
  • the height of the top cover 10 and the transition member 20 supported by the boss in the direction passing through the first pressure relief hole 11 is 1 mm-2 mm. Therefore, while ensuring the effect of preventing thermal runaway, it is avoided that the distance between the top cover 10 and the adapter part 20 is too large to affect the structural strength of the battery cell 1000 .
  • the end cap assembly 100 further includes a lower plastic 40 disposed between the top cover 10 and the transition part 20 to insulate the end cap assembly 100 itself and the transition part 20 itself.
  • the boss can be arranged between the top cover 10 and the lower plastic 40 , or between the lower plastic 40 and the adapter part 20 .
  • the lower plastic 40 will melt when heated, and the boss will be directly supported between the top cover 10 and the adapter part 20 to perform its function.
  • the tab transfer section 22 The side away from the top cover 10 is connected to the tab of the electrode assembly 300 , thereby realizing the electrical connection between the tab and the pole 400 .
  • the pole 400 is used for electrical connection with an external circuit, thereby realizing the electrical connection between the electrode assembly 300 and the external circuit.
  • the adapter part 20 is configured to be foldable, in other words, the adapter part 20 has an unfolded state and a folded state, wherein, when the battery cell 1000 is not assembled into a finished product, the adapter part 20 is in the unfolded state, The pole connecting section 21 , the tab connecting section 22 and the bending section 23 are located on the same plane. After the finished battery cell 1000 is assembled, the adapter part 20 is in a folded state, and the pole adapter section 21, the bent section 23 and the tab adapter section 22 are sequentially stacked along the penetration direction of the first pressure relief hole 11. Arranged on one side of the top cover 10.
  • the pole adapter section 21 is provided with a first connection hole 211
  • the lower plastic 40 is provided with a second connection hole 41
  • the top cover 10 is provided with a third connection hole 12
  • the poles 400 pass through in turn.
  • the first connection hole 211 , the second connection hole 41 and the third connection hole 12 are fixed.
  • the boss can also be made of aluminum or copper.
  • the end cover assembly 100 further includes a rivet 50 and an upper plastic 60 .
  • the rivet 50 and the upper plastic 60 are disposed on a side of the top cover 10 away from the adapter part 20 to form the completed end cover assembly 100 .
  • the end cover assembly 100 further includes an explosion-proof valve plate 70 , the explosion-proof valve plate 70 is assembled on the side of the top cover 10 away from the transition part 20 and covers the first pressure relief hole 11 .
  • the explosion-proof valve plate 70 closes the first pressure relief hole 11 to prevent other substances from entering the explosion-proof valve to block the first pressure relief hole 11 and the second pressure relief hole 221 .
  • the high-temperature gas instantly rushes through the explosion-proof valve plate 70 for pressure relief and explosion protection.
  • the specific assembly process of the end cap assembly 100 is as follows:
  • step 2) Assemble the welded body in step 2) with the top cover 10, assemble the lower plastic 40 between the top cover 10 and the adapter part 20, and install a sealing ring at the connection between the pole 400 and the top cover 10 90;
  • the pole 400 is riveted and fixed by the riveting member 50 to obtain the end cap assembly 100 with the metal boss welded on the transfer part 20 .
  • the specific assembly process of the end cap assembly 100 is as follows:
  • step 2) Assemble the welded body in step 2) with the adapter part 20, assemble the lower plastic 40 between the top cover 10 and the adapter part 20, and install a seal at the connection between the pole 400 and the top cover 10 Circle 90;
  • the pole 400 is riveted and fixed by the riveting member 50 to obtain the end cover assembly 100 with the metal boss welded on the top cover 10 .
  • a battery cell 1000 which includes a casing 200 , an end cap assembly 100 as described in any of the above embodiments disposed at one end of the casing 200 , and an end cap assembly 100 disposed in the casing 200 with the The electrode assembly 300 to which the end cap assembly 100 is connected.
  • the end cap assembly 100 is disposed at both ends of the casing 200 for closing the cavity in the casing 200 to protect the electrode assembly 300 assembled in the cavity and to seal the casing 200 .
  • the battery cell 1000 includes two end cap assemblies 100, and the two end cap assemblies 100 are respectively closed.
  • the opposite ends of the casing 200 correspond to the first tab and the second tab respectively, for example, they are respectively referred to as the first end cover assembly and the second end cover assembly, one is located on the positive side of the battery cell 1000, and the other is One is located on the negative side of the battery cell 1000 .
  • a first ear gel 510 is provided between the first tab and the first end cap assembly, and a second ear gel 520 is provided between the second tab and the second end cap assembly, thereby ensuring depolarization. Insulation between the electrode assembly 300 and other contact parts of the adapter part 20 except the ear contact.
  • the present application also provides a battery, including a box body and one or more battery cells 1000 described in any of the above solutions, and the one or more battery cells 1000 are assembled in the box body.
  • the present application also provides an electric device, comprising the battery described in any one of the solutions above, and the battery is used to provide electric energy.

Abstract

La présente invention concerne un ensemble couvercle d'extrémité (100), une cellule de batterie (1000), une batterie et un dispositif électrique. L'ensemble couvercle d'extrémité (100) comprend un couvercle supérieur (10), un composant adaptateur (20) et un élément de support (30) ; un premier trou de décompression (11) est formé dans le couvercle supérieur (10) ; le composant adaptateur (20) est relié au couvercle supérieur (10) ; des seconds trous de décompression (221) sont formés dans le composant adaptateur (20) ; les seconds trous de décompression (221) sont décalés par rapport au premier trou de décompression (11) dans la direction de pénétration du premier trou de décompression (11) ; l'élément de support (30) est supporté entre le couvercle supérieur (10) et le composant adaptateur (20) ; l'élément de support (30) est conçu pour espacer le couvercle supérieur (10) et le composant adaptateur (20).
PCT/CN2022/132548 2022-01-29 2022-11-17 Ensemble couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique WO2023142620A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202220245238.0 2022-01-29
CN202220245238.0U CN217182297U (zh) 2022-01-29 2022-01-29 端盖组件、电池单体、电池及用电设备

Publications (1)

Publication Number Publication Date
WO2023142620A1 true WO2023142620A1 (fr) 2023-08-03

Family

ID=82737446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/132548 WO2023142620A1 (fr) 2022-01-29 2022-11-17 Ensemble couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique

Country Status (2)

Country Link
CN (1) CN217182297U (fr)
WO (1) WO2023142620A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217182297U (zh) * 2022-01-29 2022-08-12 宁德时代新能源科技股份有限公司 端盖组件、电池单体、电池及用电设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004281116A (ja) * 2003-03-13 2004-10-07 Yuasa Corp 密閉型蓄電池
CN107799709A (zh) * 2016-09-06 2018-03-13 三星Sdi株式会社 可再充电电池
CN214898799U (zh) * 2021-06-30 2021-11-26 宁德时代新能源科技股份有限公司 端盖组件、电池及用电装置
CN215342741U (zh) * 2021-07-08 2021-12-28 苏州三众新能源科技有限公司 一种用于锂电池的盖板装置
CN216719997U (zh) * 2022-01-25 2022-06-10 宁德时代新能源科技股份有限公司 集流盘、顶盖、电池单体、电池及用电装置
CN217182297U (zh) * 2022-01-29 2022-08-12 宁德时代新能源科技股份有限公司 端盖组件、电池单体、电池及用电设备
CN217182356U (zh) * 2022-03-03 2022-08-12 宁德时代新能源科技股份有限公司 端盖组件、电池单体、电池及用电装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004281116A (ja) * 2003-03-13 2004-10-07 Yuasa Corp 密閉型蓄電池
CN107799709A (zh) * 2016-09-06 2018-03-13 三星Sdi株式会社 可再充电电池
CN214898799U (zh) * 2021-06-30 2021-11-26 宁德时代新能源科技股份有限公司 端盖组件、电池及用电装置
CN215342741U (zh) * 2021-07-08 2021-12-28 苏州三众新能源科技有限公司 一种用于锂电池的盖板装置
CN216719997U (zh) * 2022-01-25 2022-06-10 宁德时代新能源科技股份有限公司 集流盘、顶盖、电池单体、电池及用电装置
CN217182297U (zh) * 2022-01-29 2022-08-12 宁德时代新能源科技股份有限公司 端盖组件、电池单体、电池及用电设备
CN217182356U (zh) * 2022-03-03 2022-08-12 宁德时代新能源科技股份有限公司 端盖组件、电池单体、电池及用电装置

Also Published As

Publication number Publication date
CN217182297U (zh) 2022-08-12

Similar Documents

Publication Publication Date Title
CN113258124B (zh) 电池单体、电池、用电设备及电池单体的制造方法和设备
US11967725B2 (en) Case of battery, battery, power consumption device, and method and device for preparing battery
JP7326502B2 (ja) 電池、電力消費装置、電池製造方法及び装置
WO2023137976A1 (fr) Élément de batterie, batterie et dispositif électrique
WO2022006903A1 (fr) Batterie, dispositif électrique et procédé de préparation de batterie et dispositif
WO2023098258A1 (fr) Élément de batterie, batterie et dispositif électrique
CN216085200U (zh) 电池单体、电池以及用电装置
CN114696016A (zh) 端盖组件、电池、用电设备、电池单体及其制造方法
CN114175365B (zh) 电池及其相关装置、制备方法和制备设备
US11881601B2 (en) Box of battery, battery, power consumption device, and method and apparatus for producing box
WO2023025108A1 (fr) Élément de batterie, batterie et appareil électrique
US20230246287A1 (en) End cap assembly, battery cell, battery, and electrical device
WO2023142620A1 (fr) Ensemble couvercle d'extrémité, cellule de batterie, batterie et dispositif électrique
CN115715438B (zh) 电池单体及其制造方法和制造系统、电池以及用电装置
WO2023279260A1 (fr) Élément de batterie, batterie, dispositif électrique, et procédé et dispositif de fabrication pour élément de batterie
CN116964835A (zh) 绝缘件、端盖组件、电池单体、电池及用电设备
CN114175376B (zh) 电池及其相关装置、制备方法和制备设备
US20230344033A1 (en) Battery, power consuming device, and method and device for manufacturing battery
WO2023050278A1 (fr) Élément de batterie et procédé et système de fabrication associés, et batterie et dispositif électrique
WO2023050281A1 (fr) Élément de batterie et système et procédé de fabrication associés, batterie et dispositif électrique
US20220320673A1 (en) Battery, power consumption device, method and device for producing battery
CN217182280U (zh) 电极组件、电池单体、电池和用电设备
WO2023133855A1 (fr) Batterie, dispositif électronique et procédé de préparation et appareil de préparation pour batterie
WO2023070683A1 (fr) Élément de batterie, batterie et procédé ainsi qu'appareil de fabrication d'élément de batterie
CN218939874U (zh) 电池及用电装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22923414

Country of ref document: EP

Kind code of ref document: A1