CN219017872U - Battery core pole column cover plate structure and battery core - Google Patents

Battery core pole column cover plate structure and battery core Download PDF

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Publication number
CN219017872U
CN219017872U CN202222552246.2U CN202222552246U CN219017872U CN 219017872 U CN219017872 U CN 219017872U CN 202222552246 U CN202222552246 U CN 202222552246U CN 219017872 U CN219017872 U CN 219017872U
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China
Prior art keywords
cover plate
cover
insulating piece
riveting
pole
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Active
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CN202222552246.2U
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Chinese (zh)
Inventor
郑盼斌
张亚儒
张运
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Shanghai Lanjun New Energy Technology Co Ltd
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Shanghai Lanjun New Energy Technology Co Ltd
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Priority to CN202222552246.2U priority Critical patent/CN219017872U/en
Priority to DE202022106464.4U priority patent/DE202022106464U1/en
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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
    • H01M50/183—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
    • H01M50/10—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
    • 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
    • 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
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H01M50/645—Plugs
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The embodiment of the utility model provides a battery core pole column cover plate structure and a battery core, and relates to the technical field of battery manufacturing. In addition, the number of the whole assembly parts is reduced, so that the assembly process is reduced, and the production efficiency is improved.

Description

Battery core pole column cover plate structure and battery core
Technical Field
The utility model relates to the technical field of battery manufacturing, in particular to a battery core pole column cover plate structure and a battery core.
Background
In modern society, more and more electric tools and new energy vehicles drive power sources to develop towards high capacity and high safety. The lithium ion battery has the advantages of small self-discharge, high energy density and the like, so that the lithium ion battery becomes a widely applied power battery. Lithium ion batteries typically include a plurality of electrical cells.
According to the research of the inventor, in the production process of the battery core, a plurality of scattered riveting nails (for example, 2-5 riveting nails) are required to pass through the switching sheet and the cover plate in sequence and then are matched with the pole, the more the riveting nails matched with the pole are, the more difficult the assembly consistency is ensured, and if one or more riveting nails are not matched with the pole in place, the pole leakage phenomenon is easy to occur in the subsequent liquid injection process, so that the whole battery core is scrapped.
Disclosure of Invention
The utility model aims to provide a battery cell, a pole cover plate structure and a battery cell, which can ensure the assembly consistency of a plurality of riveting nails and poles, improve the energy conversion efficiency of the battery cell and reduce potential safety hazards.
In a first aspect, the utility model provides a cover plate structure of an electrical core pole, comprising a riveting assembly, a first insulating piece, a cover plate, a second insulating piece and a pole;
the riveting assembly comprises a connecting plate and a plurality of riveting nails, wherein the connecting plate is provided with a first surface and a second surface which are opposite to each other, the riveting nails are fixedly connected to the second surface, and each riveting nail sequentially penetrates through the first insulating piece, the cover plate and the two insulating pieces and is fixedly connected with the pole.
In an alternative embodiment, the first face is used for welding the tab.
In an alternative embodiment, the first surface is provided with a first positioning groove, and the first positioning groove is used for welding the tab.
In an alternative embodiment, a second positioning groove is formed in one surface, facing away from the cover plate, of the first insulating piece, the shape of the connecting plate is matched with that of the second positioning groove, and the connecting plate is matched with the second positioning groove;
and/or the number of the groups of groups,
the first insulating piece is opposite to the one face of the cover plate, a blade plate connected with the first insulating piece in an included angle mode is arranged on one face of the first insulating piece, the length direction of the blade plate is the same as the length direction of the first insulating piece, and the blade plate corresponds to one side of the connecting plate in the width direction.
In an alternative embodiment, the cell terminal cover plate structure further includes a sealing member, the sealing member is disposed between the connecting plate and the cover plate, and the plurality of riveting nails penetrate through the sealing member.
In an alternative embodiment, the first insulating member is provided with a through via, the shape of the via is adapted to the sealing member, and the sealing member is matched with the via and is pressed by the cover plate and the connecting plate.
In an alternative embodiment, the battery cell pole cover plate structure further comprises an explosion-proof valve; the cover plate is provided with a penetrating positioning hole, the first insulating piece is provided with a ventilation grid part, the ventilation grid part corresponds to the positioning hole to jointly form a mounting groove, and the explosion-proof valve is accommodated in the mounting groove.
In an alternative embodiment, the cover plate structure of the electrical core pole further includes a protective patch, and the protective patch is disposed on a surface of the cover plate facing away from the first insulating member, so as to seal the explosion-proof valve.
In an alternative embodiment, the cover plate is further provided with a liquid injection hole, and the cell pole cover plate structure further comprises a sealing nail, wherein the sealing nail is used for plugging the liquid injection hole.
In a second aspect, the present utility model provides a battery cell, including a battery cell post cover structure according to any one of the foregoing embodiments.
The beneficial effects of the embodiment of the utility model include:
through the structure with connecting plate and a plurality of riveting nail body coupling, be difficult for yielding to make a plurality of riveting nails and post fixed connection after, can guarantee the assembly uniformity of a plurality of riveting nails and post. In addition, the number of the whole assembly parts is reduced, so that the assembly process is reduced, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a battery post cover plate structure according to an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a battery post cover structure according to an embodiment of the utility model.
Icon: 1-riveting an assembly; 10-connecting plates; 11-a first side; 12-a first positioning groove; 13-riveting nails; 2-a first insulating member; 21-a second positioning groove; 22-leaf plates; 23-via holes; 24-a ventilation grille part; 3-seals; 31-a first collar; 4-cover plate; 41-through holes; 42-filling holes; 5-a second insulator; 51-a second collar; 6-pole; 7-an explosion-proof valve; 8-a protective patch; 9-sealing nail.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
The embodiment of the utility model provides a battery core pole cover plate structure which is mainly applied to a battery core, so the embodiment of the utility model also provides the battery core with the battery core pole cover plate structure.
Referring to fig. 1 and 2, in this embodiment, the cover structure of the battery cell terminal includes a riveting assembly 1, a first insulating member 2, a cover 4, a second insulating member 5 and a terminal 6, which are sequentially disposed;
the riveting assembly 1 comprises a connecting plate 10 and a plurality of riveting nails 13, the connecting plate 10 is provided with a first surface 11 and a second surface which are opposite to each other, the first surface 11 is used for welding a pole lug, the riveting nails 13 are fixedly connected to the first surface 11, and each riveting nail 13 sequentially penetrates through the first insulating piece 2, the cover plate 4 and the second insulating piece 5 and is fixedly connected with the pole post 6.
Therefore, by the structure of integrally connecting the connecting plate 10 and the plurality of riveting nails 13, the structure is not easy to deform, so that after the plurality of riveting nails 13 are fixedly connected with the pole 6, the assembly consistency of the plurality of riveting nails 13 and the pole 6 can be ensured.
In addition, because the riveting nail and the switching piece are separate individuals, the current transmission is connected only by virtue of annular surface contact between the riveting nail and the switching piece, and the resistivity is high, so that a large amount of heat can be generated between the inside and the outside of the battery core when the current is transmitted, the energy conversion efficiency is reduced, and potential safety hazards can be caused.
The first face 11 of the connecting plate 10 can be used for welding the tab, and the switching piece is not needed any more, so that the problem of high resistivity in the prior art can be improved, the energy conversion efficiency is improved, and the potential safety hazard is reduced. In addition, the number of the whole assembly parts is reduced, so that the assembly process is reduced, and the production efficiency is improved.
It should be noted that, since the tab in the prior art is L-shaped, the tab needs to be ultrasonically welded to the tab. The existing fixture of the ultrasonic welding machine is difficult to design, the adapter piece is hardly positioned and fixed, the welding difficulty is high, the thickness of the adapter piece is generally about 0.5-1 mm, and the adapter piece is easy to deform under stress in the ultrasonic welding process, so that the subsequent assembly is affected. In this embodiment, the tab may be directly welded to the first surface 11 of the connecting plate 10, so that the welding difficulty is reduced.
In general, the first insulator 2, the cap plate 4, the second insulator 5, and the post 6 are rectangular, and the longitudinal direction, the width direction, and the thickness direction are respectively identical, and accordingly, the connection plate 10 is also rectangular, and the length direction of the connection plate 10 is identical to the length direction of the cap plate 4, the width direction is identical to the width direction of the cap plate 4, and the thickness direction is also identical to the thickness direction of the cap plate 4.
The cover plate 4 is processed by adopting a stamping process, has high integral strength, can not deform by external force, and can ensure the stability and durability of the assembly and sealing of the pole 6, so that the cover plate has the main function of bearing the rest parts and assembling with the shell. The pole 6 and the rivet 13 can be fixedly connected by adopting laser welding, so that the current exchange between the inside and the outside of the battery cell is completed.
In this embodiment, the first surface 11 of the connection board 10 is provided with the first positioning groove 12, and the first positioning groove 12 is used for welding the tab, so that the tab can be positioned and limited by the first positioning groove 12, the accuracy of the position of the tab during welding is ensured, and no offset can occur at will, wherein the tab and the connection board 10 can be welded by laser.
The main function of the first insulating part 2 is to ensure insulation between the riveting nail 13 and the cover plate 4, a second positioning groove 21 is formed in one surface, facing away from the cover plate 4, of the first insulating part 2, the shape of the connecting plate 10 is matched with that of the second positioning groove 21, the connecting plate 10 is matched with the second positioning groove 21, and therefore the connecting plate 10 can be limited by the second positioning groove 21, limiting function of the riveting nail 13 is achieved, and accordingly the whole battery core pole cover plate structure can be assembled.
Because electric core utmost point post apron structure and electric core obtain the casing assembly back, and the utmost point ear that originally relaxes can receive the space restriction and fold, and the utmost point ear after folding easily contacts the casing lateral wall, causes the short circuit, therefore, in this embodiment, there is the leaf 22 that the contained angle is connected on the one side of first insulating part 2 back to apron 4, the length direction of leaf 22 is the same with the length direction of first insulating part 2, leaf 22 corresponds one side of connecting plate 10 width direction, this leaf 22 is the rectangle, can be used for isolated utmost point ear and casing contact, guarantee electric core safety.
The sealing member 3 is provided with first bulge loops 31 on one side close to the cover plate 4, the number of the first bulge loops 31 is the same as that of the riveting nails 13, and the first bulge loops 31 are matched in a plurality of through holes 41 on the cover plate 4 for the riveting nails 13 to pass through in a one-to-one correspondence manner, so that the riveting nails 13 pass through the first bulge loops 31 in a one-to-one correspondence manner. By providing the first collar 31 on the seal 3, the positioning action can be indirectly exerted on the pole 6 and on the seal 3 itself. Further, since the first collar 31 is fitted in the through hole 41, the rivet 13 can be separated from the cap plate 4, functioning as insulation.
The primary function of the second insulator 5 is to insulate the post 6 from the cover plate 4. The second insulating member 5 is provided with circular second convex rings 51 on one surface facing the cover plate 4, the number of the second convex rings 51 is the same as that of the riveting nails 13, and the second convex rings 51 are correspondingly matched with the through holes 41 on the cover plate 4 for allowing the riveting nails 13 to pass through, so that the riveting nails 13 correspondingly pass through the second convex rings 51 one by one. By providing the second collar 51 on the second insulating member 5, the pole 6 and the second insulating member 5 itself can be indirectly positioned. In addition, since the second collar 51 is fitted in the through hole 41, the rivet 13 can be spaced from the cap plate 4 for insulation.
The first insulating part 2 and the second insulating part 5 are made of plastic materials, the plastic materials are softer, the riveting nails 13 and the pole 6 can be gradually matched to cause insulation among the cover plate 4, the pole 6 and the riveting assembly 1 in the process that the cover plate 4 is respectively close to the pole 6 and the connecting plate 10, the overall compactness of the structure is improved, and the design space is saved.
In this embodiment, the cover plate 4 structure of the battery terminal 6 further includes a sealing member 3, and the sealing member 3 is substantially rectangular, and the length direction, the width direction and the thickness direction are respectively consistent with the cover plate 4. The sealing element 3 is arranged between the connecting plate 10 and the cover plate 4, and a plurality of riveting nails 13 penetrate through the sealing element 3. Thereby playing a sealing role.
Because a plurality of riveting nails 13 and the connecting plate 10 adopt an integrated structure, the whole sealing piece 3 can be uniformly stressed, and the sealing qualification rate of the cover plate 4 structure of the battery cell pole 6 is improved.
Optionally, the first insulating member 2 is provided with a through via hole 23, and the via hole 23 specifically penetrates through the bottom wall of the second positioning groove 21 and is located in the middle of the second positioning groove 21, so that the shape of the via hole 23 is matched with that of the sealing member 3, and the sealing member 3 is matched with the via hole 23 and is pressed by the cover plate 4 and the connecting plate 10, so that sealing is realized after the sealing member 3 is pressed and deformed.
In this embodiment, the cover plate 4 structure of the battery core pole 6 further comprises an explosion-proof valve 7, and the explosion-proof valve 7 mainly serves to protect the battery core and prevent the battery core from being damaged more due to overlarge pressure in the casing. The cover plate 4 is provided with a positioning hole penetrating through, the first insulating piece 2 is provided with a ventilation grating part 24, and the ventilation grating part 24 corresponds to the positioning hole to jointly form a mounting groove, and the explosion-proof valve 7 is accommodated in the mounting groove so as to realize positioning and mounting of the explosion-proof valve 7 and ensure assembly consistency.
In this embodiment, the cover plate structure of the electrical core pole further includes a protection patch 8, where the protection patch 8 is disposed on a surface of the cover plate 4 opposite to the first insulating member 2, so as to cover the explosion-proof valve 7. Meanwhile, by arranging the protection patch 8, secondary damage caused by scattered scraps after the explosion of the explosion-proof valve 7 can be prevented.
In this embodiment, the cover 4 is further provided with a liquid injection hole 42 and a sealing nail 9, and the liquid injection hole 42 is mainly used for injecting electrolyte into the battery cell through the liquid injection hole 42 after the cover 4 is connected with the housing of the battery cell. The sealing nail 9 is used for sealing the liquid injection hole 42, so that after the cell liquid injection process is finished, the cell is sealed in the last step, and after the process, the cell is in a completely sealed state.
In summary, according to the battery cell and the battery cell pole cover plate structure thereof provided by the embodiment of the utility model, through the structure that the connecting plate 10 and the riveting nails 13 are integrally connected, the battery cell is not easy to deform, so that after the riveting nails 13 are fixedly connected with the pole 6, the assembly consistency of the riveting nails 13 and the pole 6 can be ensured. Moreover, since the first face 11 of the connecting plate 10 can be used for welding the tab, the switching piece is not needed any more, so that the problem of high resistivity in the prior art can be solved, the energy conversion efficiency is improved, the potential safety hazard is reduced, and the welding difficulty is reduced. In addition, the number of the whole assembly parts is reduced, so that the assembly process is reduced, and the production efficiency is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The cover plate structure of the battery core pole is characterized by comprising a riveting assembly, a first insulating piece, a cover plate, a second insulating piece and a pole;
the riveting assembly comprises a connecting plate and a plurality of riveting nails, wherein the connecting plate is provided with a first surface and a second surface which are opposite to each other, the riveting nails are fixedly connected to the second surface, and each riveting nail sequentially penetrates through the first insulating piece, the cover plate and the second insulating piece and is fixedly connected with the pole.
2. The battery post cover structure of claim 1, wherein the first face is configured to weld a tab.
3. The battery terminal cover plate structure according to claim 2, wherein the first face is provided with a first positioning groove for welding the tab.
4. The battery cell pole cover plate structure according to claim 1, wherein a second positioning groove is formed in one surface, facing away from the cover plate, of the first insulating piece, the shape of the connecting plate is matched with that of the second positioning groove, and the connecting plate is matched with the second positioning groove;
and/or the number of the groups of groups,
the first insulating piece is opposite to the one face of the cover plate, a blade plate connected with the first insulating piece in an included angle mode is arranged on one face of the first insulating piece, the length direction of the blade plate is the same as the length direction of the first insulating piece, and the blade plate corresponds to one side of the connecting plate in the width direction.
5. The cell terminal cover structure of claim 1, further comprising a seal disposed between the connecting plate and the cover, and wherein the plurality of rivet nails are disposed through the seal.
6. The battery terminal cover plate structure according to claim 5, wherein the first insulating member is provided with a through hole, the shape of the through hole is matched with that of the sealing member, and the sealing member is matched with the through hole and is extruded by the cover plate and the connecting plate.
7. The cell post cover structure according to claim 1, further comprising an explosion-proof valve; the cover plate is provided with a penetrating positioning hole, the first insulating piece is provided with a ventilation grid part, the ventilation grid part corresponds to the positioning hole to jointly form a mounting groove, and the explosion-proof valve is accommodated in the mounting groove.
8. The battery terminal cover structure of claim 7, further comprising a protective patch disposed on a side of the cover facing away from the first insulating member to cover the explosion-proof valve.
9. The cell post cover plate structure according to claim 1, wherein the cover plate is further provided with a liquid injection hole, and the cell post cover plate structure further comprises a sealing nail for plugging the liquid injection hole.
10. A battery cell comprising the battery cell post cover structure of any one of claims 1-9.
CN202222552246.2U 2022-09-26 2022-09-26 Battery core pole column cover plate structure and battery core Active CN219017872U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202222552246.2U CN219017872U (en) 2022-09-26 2022-09-26 Battery core pole column cover plate structure and battery core
DE202022106464.4U DE202022106464U1 (en) 2022-09-26 2022-11-18 Terminal cover structure for an electric cell and electric cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222552246.2U CN219017872U (en) 2022-09-26 2022-09-26 Battery core pole column cover plate structure and battery core

Publications (1)

Publication Number Publication Date
CN219017872U true CN219017872U (en) 2023-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222552246.2U Active CN219017872U (en) 2022-09-26 2022-09-26 Battery core pole column cover plate structure and battery core

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Country Link
CN (1) CN219017872U (en)
DE (1) DE202022106464U1 (en)

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DE202022106464U1 (en) 2022-11-24

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