WO2023082689A1 - Garniture d'étanchéité pour couvercle de batterie, couvercle de batterie la comprenant, et module de batterie - Google Patents

Garniture d'étanchéité pour couvercle de batterie, couvercle de batterie la comprenant, et module de batterie Download PDF

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Publication number
WO2023082689A1
WO2023082689A1 PCT/CN2022/106517 CN2022106517W WO2023082689A1 WO 2023082689 A1 WO2023082689 A1 WO 2023082689A1 CN 2022106517 W CN2022106517 W CN 2022106517W WO 2023082689 A1 WO2023082689 A1 WO 2023082689A1
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WO
WIPO (PCT)
Prior art keywords
sealing ring
pole
sealing
battery cover
groove
Prior art date
Application number
PCT/CN2022/106517
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English (en)
Chinese (zh)
Inventor
高顺航
娄佳训
Original Assignee
蜂巢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 蜂巢能源科技股份有限公司 filed Critical 蜂巢能源科技股份有限公司
Priority to DE212022000175.3U priority Critical patent/DE212022000175U1/de
Publication of WO2023082689A1 publication Critical patent/WO2023082689A1/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
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • 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
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • 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
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular 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 technical field of batteries, in particular to a sealing ring for a battery cover, a battery cover and a battery module having the same.
  • lithium-ion batteries are widely used in vehicles, mobile devices and other fields due to their advantages of high energy density.
  • the battery cover structure of the lithium-ion battery in order to improve the overall safety performance of the battery, it is necessary to perform insulation treatment between the pole and the cover plate.
  • a sealing member is used to insulate the pole, the sealing ring is heavy and the cost is high.
  • the present application proposes a sealing ring for a battery cover, which has the advantages of light weight and low production cost.
  • the present application also proposes a battery cover with the above sealing ring.
  • the present application also proposes a battery module with the above-mentioned battery cover.
  • the battery cover includes: a battery cover body and a pole, and a mounting hole is formed on the battery cover body, and the pole is mounted in the mounting hole.
  • An accommodating cavity is defined between the battery cover body and the pole, the sealing ring is adapted to be sleeved on the outer peripheral side of the pole and the sealing ring is interference fit in the accommodating cavity, the sealing A groove is formed on the ring, and the inner wall of the groove is adapted to define a deformation space for deformation of the sealing ring between the pole and the pole.
  • a groove is formed on the sealing ring, and the inner wall of the groove is suitable for defining a deformation space for the deformation of the sealing ring between the pole and the pole, so as to ensure the sealing of the battery cover.
  • the weight of the sealing ring is lighter, and the amount of material used is less, which is beneficial to realize the lightweight design of the battery cover and the production cost is low.
  • the groove is formed as a ring extending along the circumference of the sealing ring, and the groove is coaxially arranged with the sealing ring.
  • the width a of the groove satisfies: 0.8mm ⁇ a ⁇ 1.2mm.
  • the sealing ring is formed with a through hole
  • the pole is adapted to pass through the through hole
  • the groove is formed at least in the axial direction of the sealing ring side.
  • the groove runs through the inner peripheral wall of the through hole.
  • the pole includes a pole body and a pole boss, and the pole boss protrudes from the outer peripheral wall of the pole body and is located inside the battery cover body;
  • the sealing ring includes: a sealing main body and a sealing flange, the sealing flange is formed on the outer peripheral side of the sealing main body, the sealing main body is arranged on the outer peripheral side of the pole body, the The sealing flange part is suitable for filling between the battery cover body and the pole post boss; in the axial direction of the sealing ring, the groove is formed at a distance between the first sealing part and the One side of the second sealing part, the distance between the axial end surface of the sealing body part away from the pole boss and the axial end surface of the sealing flange part away from the Austrian pole boss is b, so
  • the extension length of the groove in the axial direction of the sealing ring is c, and b and c satisfy: c ⁇ b.
  • the groove is spaced apart from the through hole.
  • the battery cover according to the embodiment of the present application includes: a battery cover body, the battery cover body is formed with an installation hole; a pole, the pole is installed in the installation hole, and the battery cover body and the pole An accommodating cavity is defined between them; the above-mentioned sealing ring is interference-fitted in the accommodating cavity.
  • a groove is formed on the sealing ring, and the inner wall of the groove is suitable for defining a deformation space for the deformation of the sealing ring between the pole and the pole. While ensuring the sealing and insulating performance of the battery cover, The weight of the sealing ring is lighter and the amount of material used is less, which is beneficial to realize the lightweight design of the battery cover and the production cost is low.
  • a battery module includes: at least one battery cell; and a casing, the casing includes the above-mentioned battery cover, and the battery cell is disposed in the casing.
  • a groove is formed on the sealing ring, and the inner wall of the groove is suitable for defining a deformation space for the deformation of the sealing ring between the pole and the pole, while ensuring the sealing and insulating performance of the battery cover , so that the weight of the sealing ring is lighter and the amount of material used is less, which is beneficial to realize the lightweight design of the battery cover and the production cost is low.
  • FIG. 1 is a perspective view of a battery cover according to an embodiment of the present application.
  • FIG. 2 is a partial cross-sectional view of a battery cover according to Embodiment 1 of the present application;
  • Fig. 3 is a top view of a sealing ring according to Embodiment 1 of the present application.
  • Fig. 4 is a sectional view along A-A among Fig. 3;
  • Fig. 5 is a left side view of the sealing ring according to Embodiment 1 of the present application.
  • Fig. 6 is a bottom side view of the sealing ring according to Embodiment 1 of the present application.
  • FIG. 7 is a partial cross-sectional view of a battery cover according to Embodiment 2 of the present application.
  • Fig. 8 is a top view of a sealing ring according to Embodiment 2 of the present application.
  • Fig. 9 is a sectional view along B-B in Fig. 8;
  • Fig. 10 is a left view of a sealing ring according to Embodiment 2 of the present application.
  • Fig. 11 is a bottom side view of a sealing ring according to Embodiment 2 of the present application.
  • Fig. 12 is a partial cross-sectional view of a battery cover according to Embodiment 3 of the present application.
  • Fig. 13 is a top view of a sealing ring according to Embodiment 3 of the present application.
  • Fig. 14 is a sectional view along C-C in Fig. 13;
  • Fig. 15 is a left view of the sealing ring according to Embodiment 3 of the present application.
  • Fig. 16 is a bottom side view of the sealing ring according to the third embodiment of the present application.
  • Battery cover body 200 installation hole 210; cover plate 201; lower plastic plate 202; upper plastic plate 203; fixing piece 204;
  • pole 300 pole body 301; pole boss 302;
  • the cuff portion 20 is sealed.
  • the battery cover 1000 includes: a battery cover body 200 and a pole 300, the battery cover body 200 is formed with a mounting hole 210, the pole 300 is installed in the mounting hole 210, the battery cover body 200 and the pole An accommodating cavity is defined between the poles 300 , the sealing ring 100 is suitable to be sleeved on the outer peripheral side of the pole 300 and the sealing ring 100 is interference-fitted in the accommodating cavity.
  • the pole 300 is penetrated in the installation hole 210 , an accommodating cavity is defined between the pole 300 and the inner wall of the installation hole 210 , and the sealing ring 100 is filled between the outer peripheral wall of the pole 300 and the inner wall of the installation hole 210 , that is, the pole 300 is separated from the battery cover body 200 by physical separation to ensure the insulation effect between the pole 300 and the battery cover body 200 , thereby improving the insulation performance of the battery cover 1000 .
  • the battery cover 1000 when the battery cover 1000 is installed on the battery module, it can better prevent the water vapor in the external space from entering the battery module through the accommodating cavity, and the sealing performance is good, which is beneficial to improve the stability and safety of the battery module.
  • the outer peripheral wall of the pole 300 and the inner peripheral wall of the installation hole 210 co-press the sealing ring 100, so that the sealing ring 100 is deformed to a certain extent, so that the sealing ring 100 can be
  • the outer peripheral wall of the pole 300 and the inner wall of the installation hole 210 are more tightly fitted, the sealing effect of the sealing ring 100 is further improved, and the sealing and insulation performance of the battery cover 1000 is good.
  • a groove 1 is formed on the sealing ring 100 , and the inner wall of the groove 1 is adapted to define a deformation space 11 for deformation of the sealing ring 100 between the pole 300 . That is, during the installation process of the sealing ring 100, when the position of the groove 1 bears an action force, the groove 1 can be deformed toward the deformation space 11, so that the sealing ring 100 can be better interference fit in the accommodation cavity, Further, the sealing and insulating performance of the battery cover 1000 is ensured.
  • the weight of the sealing ring 100 is lighter and the amount of materials used is less, which is beneficial to realize the lightweight design and production of the battery cover 1000. low cost.
  • a groove 1 is formed on the sealing ring 100, and the inner wall of the groove 1 is suitable for defining a deformation space 11 for the deformation of the sealing ring 100 between the pole 300, ensuring the battery cover
  • the weight of the sealing ring 100 is lighter and the amount of materials used is less, which is beneficial to realize the lightweight design of the battery cover 1000 and the production cost is low.
  • the groove 1 is formed as a ring extending along the circumference of the sealing ring 100 , and the groove 1 and the sealing ring 100 are arranged coaxially. That is to say, the sealing ring 100 has a deformation space 11 in the axial direction. Therefore, during the assembly process of the battery cover 1000, when the pole 300 and the battery cover body 200 press the sealing ring 100, the sealing ring 100 can be deformed toward the deformation space 11 in the circumferential direction, that is, the circumferential direction of the sealing ring 100 The deformation range is relatively uniform, which is conducive to improving the assembly accuracy of the battery cover 1000 . In addition, the weight and material consumption of the sealing ring 100 are further reduced, which is beneficial to realize the lightweight design and low production cost of the battery cover 1000 .
  • the width a of the groove 1 satisfies: 0.8mm ⁇ a ⁇ 1.2mm. That is, the width of the groove 1 is controlled between 0.8mm and 1.2mm.
  • the width of the groove 1 can be 0.8mm, 0.9mm, 1mm or 1.2mm.
  • the width of the groove 1 between 0.8mm and 1.2mm, while ensuring that the battery cover 1000 has good sealing and insulating properties, the weight and material consumption of the sealing ring 100 can be reduced, which is beneficial to the realization of the battery cover. 1000's lightweight design and low production costs.
  • the grooves 1 can be arranged at intervals in the circumferential direction of the sealing ring 100, and the sealing ring 100 cooperates with the pole 300 to form a plurality of deformation spaces 11 arranged at intervals in the circumferential direction; 100 are arranged at intervals in the axial direction, and some are arranged at intervals in the circumferential direction of the sealing ring 100 , and the sealing ring 100 cooperates with the pole 300 to form a plurality of deformation spaces 11 arranged at intervals in the axial and circumferential directions.
  • the sealing ring 100 can be deformed into multiple deformation spaces 11, while ensuring the sealing and insulating effect of the sealing ring 100, further reducing the weight and material consumption of the sealing ring 100, which is beneficial to realize the weight reduction of the battery cover 1000 Design and production costs are low.
  • the sealing ring 100 is formed with a through hole 2 , and the pole 300 is adapted to pass through the through hole 2 .
  • the difficulty of assembling the sealing ring 100 and the pole 300 is reduced, which is beneficial to improve the assembly efficiency of the battery cover 1000 .
  • the groove 1 is formed on at least one side of the sealing ring 100 in the axial direction. That is to say, the groove 1 can be formed on the axial end surface of one side of the sealing ring 100 ; or the groove 1 can be formed on the axial end surfaces of both sides of the sealing ring 100 .
  • the sealing ring 100 is deformed toward the deformation space 11 , so that the deformation range of the sealing ring 100 in the axial direction is increased, which is beneficial to reducing the axial dimension of the battery cover 1000 .
  • the processing difficulty of the groove 1 can be better reduced, and the production efficiency of the sealing ring 100 can be improved.
  • the groove 1 runs through the inner peripheral wall of the through hole 2 . That is to say, one side of the groove 1 adjacent to the through hole 2 communicates with the through hole 2 . Therefore, during the injection molding process of the sealing ring 100 , orders are made for the shape and structure of the production mold, which is beneficial to reduce production costs.
  • the pole 300 includes a pole body 301 and a pole boss 302 , the pole boss 302 protrudes from the peripheral wall of the pole body 301 and is located inside the battery cover body 200 . That is to say, one end of the pole boss 302 is connected to the peripheral wall of the pole body 301 , and the other end of the pole boss 302 extends away from the pole body 301 .
  • the outer diameter of the pole boss 302 is greater than the inner diameter of the installation hole 210, so that the main body of the battery cover 1000 can pass through the limit of the pole boss 302 to avoid the pole body 301 from being installed in the hole 210. The falling off is beneficial to reduce the difficulty of assembling the battery cover 1000 and improve the structural stability of the battery cover 1000 .
  • the seal ring 100 includes: a seal body portion 10 and a seal flange portion 20, the seal flange portion 20 is formed on the outer peripheral side of the seal body portion 10, and the seal body portion 10 is arranged on the pole body 301. On the outer peripheral side, the sealing flange portion 20 is suitable for filling between the battery cover body 200 and the pole boss 302 .
  • one end of the sealing turning part is connected to the outer peripheral wall of the sealing main body part 10, and the other end of the sealing flange part 20 extends toward a direction away from the sealing main body part 10, and the sealing turning part
  • the outer diameters of the edge portion 20 and the pole boss 302 are larger than the inner diameter of the mounting hole 210 , and the sealing flange 20 and the pole boss 302 are stacked in the axial direction of the sealing ring 100 .
  • the pole body 301 can be spaced apart from the inner wall of the mounting hole 210 by sealing the main body part 10, and the pole boss 302 can be spaced apart from the inner wall of the mounting hole 210 by sealing the flange part 20, thereby ensuring that the sealing ring 100 is effective in sealing and insulating the pole 300 and the battery cover body 200 .
  • the groove 1 is formed on the side of the first sealing part away from the second sealing part, and the sealing body part 10 is far away from the axial end surface of the pole boss 302 and the sealing flange part 20.
  • the distance between the axial end faces away from the pole bosses 302 is b
  • the extension length of the groove 1 in the axial direction of the sealing ring 100 is c
  • b and c satisfy: c ⁇ b. Therefore, the risk of sealing and insulation failure due to the excessively large deformation space 11 can be better avoided, which is beneficial to improving the sealing and insulation performance of the battery cover 1000 .
  • the groove 1 forms the upper end surface of the first sealing part and communicates with the through hole 2.
  • the upper end surface of the first sealing part and the sealing flange part The distance between the upper end surfaces of 20 is greater than the extension length of the groove 1 , so as to control the size of the deformation space 11 under the premise of avoiding affecting the sealing and insulating performance of the battery cover 1000 .
  • the battery cover body 200 includes a stacked cover plate 201 and a lower plastic plate 202, the sealing flange portion 20 is located between the pole boss 302 and the cover plate 201, and the groove 1 It is arranged at the bottom of the sealing flange part 20. Therefore, during the assembly process of the battery cover 1000, by squeezing the sealing ring 100 to deform it toward the groove 1, the deformation range of the bottom side of the sealing ring 100 is increased, thereby shrinking The distance between the pole boss 302 and the cover plate 201 in the axial direction reduces the assembly gap between the cover plate 201 and the lower plastic plate 202 , and between the lower plastic plate 202 and the pole boss 302 .
  • the electrolyte enters between the pole 300 and the cover 201 through the gap between the cover plate 201 and the lower plastic plate 202, between the lower plastic plate 202 and the pole boss 302, and further improves the Insulation performance of the battery cover 1000 .
  • the groove 1 and the through hole 2 are arranged at intervals. That is to say, the groove 1 does not directly communicate with the through hole 2 .
  • the groove 1 is provided on the lower end surface of the sealing flange portion 20 , and the groove 1 is spaced apart from the pole body 301 .
  • the sealing main body 10 can be better bonded to the pole body 301 , and the sealing and insulating effect is good.
  • a battery cover 1000 according to an embodiment of the present application is described below with reference to the accompanying drawings.
  • the battery cover 1000 includes: a battery cover body 200 , a pole 300 and the aforementioned sealing ring 100 .
  • the battery cover body 200 is formed with a mounting hole 210
  • the pole 300 is installed in the mounting hole 210
  • an accommodation cavity is defined between the battery cover body 200 and the pole 300
  • the sealing ring 100 is interference fit in the accommodation cavity.
  • the pole 300 is physically separated from the battery cover body 200 to ensure the insulation effect between the pole 300 and the battery cover body 200 , thereby improving the insulation performance of the battery cover 1000 .
  • a groove 1 is formed on the sealing ring 100, and the inner wall of the groove 1 is suitable for defining a deformation space 11 for the deformation of the sealing ring 100 between the pole 300, ensuring the battery cover
  • the weight of the sealing ring 100 is lighter and the amount of materials used is less, which is beneficial to realize the lightweight design of the battery cover 1000 and the production cost is low.
  • the battery cover 1000 includes a battery cover body 200 , a pole 300 and a sealing ring 100 .
  • the battery cover body 200 includes: a cover plate 201, a lower plastic plate 202, an upper plastic plate 203 and a fixing member 204, wherein the cover plate 201 is a light aluminum sheet, and the upper plastic plate 203, the cover plate 201 and the lower plastic plate 202 Stacked in the vertical direction, the upper plastic plate 203 is located on the upper side of the cover plate 201, the lower plastic plate 202 is located on the inner side of the cover plate 201, through the common A receiving cavity is defined, a first perforation is formed on the cover plate 201, a second perforation is formed on the upper plastic plate 203, a third perforation is formed on the lower plastic plate 202, and the first perforation, the second perforation and the third perforation together form the installation hole 210 , the inner diameter of the third through hole is larger than the inner diameter of the first through hole.
  • the pole 300 includes a pole body 301 and a pole boss 302, the pole boss 302 protrudes from the outer peripheral wall of the pole body 301, and the pole body 301 passes through the first through hole, the second through hole and the second hole in sequence.
  • the fixing part 204 can be an aluminum block set by riveting.
  • the diameter of the pole boss 302 is greater than the inner diameter of the third through hole, and the pole boss 302 is located on the side of the lower plastic plate 202 away from the cover plate 201, that is, the pole boss 302 and the cover plate 201 are arranged at intervals, and the pole boss 302 is located at a distance from the cover plate 201.
  • the upper end surface of the table 302 is in contact with the lower end surface of the lower plastic plate 202 .
  • the sealing ring 100 includes a sealing body part 10 and a sealing flange part 20, the sealing flange part 20 protrudes from the outer peripheral wall of the sealing body part 10, and is located at the lower end of the sealing body part 10, and the sealing body part 10 forms a through hole 2 , the pole body 301 is penetrated in the through hole 2, the sealing main body 10 is penetrated in the first through hole, the outer diameter of the sealing main body 10 is greater than the inner diameter of the first through hole, the pole body 301 is greater than the inner diameter of the through hole 2, The outer diameter of the sealing main body 10 is larger than the inner diameter of the first through hole, the sealing flange portion 20 is located in the third through hole, and the outer diameter of the pole boss 302 is larger than the outer diameter of the sealing flange portion 20 .
  • the groove 1 is formed on the axial end surface of the sealing main body 10 facing the pole boss 302 , and the side of the groove 1 facing the pole body 301 penetrates through the inner wall of the through hole 2 .
  • the structure of the second embodiment is roughly the same as that of the first embodiment, and the same components use the same reference numerals.
  • the difference between the second embodiment and the first embodiment is that the groove 1 is formed in the sealing flange The portion 20 faces the axial end surface of the pole boss 302 , and the groove 1 and the through hole 2 are spaced apart.
  • Embodiment 3 has roughly the same structure as Embodiment 1, and the same components use the same reference numerals. Referring to Figures 12-16, the difference between Embodiment 3 and Embodiment 1 is that the groove 1 is formed in the main body of the seal 10 is away from the axial end surface of the sealing flange portion 20 , that is, the upper end surface, and the side of the groove 1 facing the pole boss 302 runs through the inner wall of the through hole 2 .
  • the battery module according to the embodiment of the present application includes: at least one battery cell and a casing, wherein the casing includes the above-mentioned battery cover 1000 , and the battery cell is disposed in the casing. Because the battery cover 1000 has good sealing and insulation properties, the casing has a good protective effect on the battery cells, which is beneficial to improve the stability and safety of the battery module.
  • the sealing ring 100 is formed with a groove 1, and the inner wall of the groove 1 is suitable for defining a deformation space 11 for the deformation of the sealing ring 100 between the pole 300, ensuring that the battery cover
  • the weight of the sealing ring 100 is lighter and the amount of materials used is less, which is beneficial to realize the lightweight design of the battery cover 1000 and the production cost is low.

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

Abstract

L'invention concerne une garniture d'étanchéité (100) pour un couvercle de batterie (1000), le couvercle de batterie (1000) comprenant celle-ci, et un module de batterie ; une rainure (1) est formée sur la garniture d'étanchéité (100), et un espace de déformation (11) pour déformer la garniture d'étanchéité (100) est défini entre la paroi interne de la rainure (1) et un pôle d'électrode (300). Tandis que les performances d'isolation/étanchéité du couvercle de batterie (1000) sont assurées, le poids de la garniture d'étanchéité (100) est plus léger, une quantité moindre de matériau est utilisée, ce qui facilite la conception légère du couvercle de batterie (1000) et génère de faibles coûts de production.
PCT/CN2022/106517 2021-11-15 2022-07-19 Garniture d'étanchéité pour couvercle de batterie, couvercle de batterie la comprenant, et module de batterie WO2023082689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212022000175.3U DE212022000175U1 (de) 2021-11-15 2022-07-19 Ein Dichtring für die Batterieabdeckung sowie eine damit ausgestattete Batterieabdeckung und ein Batteriemodul

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122797983.4U CN216354485U (zh) 2021-11-15 2021-11-15 用于电池盖的密封圈及具有其的电池盖、电池模组
CN202122797983.4 2021-11-15

Publications (1)

Publication Number Publication Date
WO2023082689A1 true WO2023082689A1 (fr) 2023-05-19

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PCT/CN2022/106517 WO2023082689A1 (fr) 2021-11-15 2022-07-19 Garniture d'étanchéité pour couvercle de batterie, couvercle de batterie la comprenant, et module de batterie

Country Status (3)

Country Link
CN (1) CN216354485U (fr)
DE (1) DE212022000175U1 (fr)
WO (1) WO2023082689A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116780065A (zh) * 2023-08-21 2023-09-19 深圳海辰储能控制技术有限公司 端盖组件、储能装置及用电设备
CN116885358A (zh) * 2023-09-07 2023-10-13 常州瑞德丰精密技术有限公司 电池顶盖的装配方法
CN117374492A (zh) * 2023-12-07 2024-01-09 蜂巢能源科技股份有限公司 电池外壳及电池

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216354485U (zh) * 2021-11-15 2022-04-19 蜂巢能源科技有限公司 用于电池盖的密封圈及具有其的电池盖、电池模组
CN115275467A (zh) * 2022-07-28 2022-11-01 浙江南都电源动力股份有限公司 一种蓄电池极柱密封结构

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US20190067650A1 (en) * 2017-08-30 2019-02-28 Contemporary Amperex Technology Co., Limited Cap assembly for secondary battery, secondary battery and battery module
CN112216934A (zh) * 2020-10-14 2021-01-12 欣旺达电动汽车电池有限公司 电池盖板组件及单体电池
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