CN215184246U - Battery top cap and battery - Google Patents
Battery top cap and battery Download PDFInfo
- Publication number
- CN215184246U CN215184246U CN202121220477.2U CN202121220477U CN215184246U CN 215184246 U CN215184246 U CN 215184246U CN 202121220477 U CN202121220477 U CN 202121220477U CN 215184246 U CN215184246 U CN 215184246U
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- Prior art keywords
- battery
- reinforcing plate
- hole
- apron
- plate
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- Legal status (The legal status 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 status listed.)
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 80
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a battery top cap and battery, this battery top cap includes the apron, utmost point post and be used for the metal terminal of being connected with the external equipment electricity, the apron is the plastic board, apron and battery case's open end sealing connection, the metal terminal sets up the one side that deviates from electric core at the apron, the apron runs through battery case's inside and outside and has seted up the mounting hole, be connected with the reinforcing plate in the mounting hole, the middle part of reinforcing plate is run through and has been seted up first through-hole, utmost point post passes first through-hole and metal terminal electricity is connected by the apron one side that is close to electric core, utmost point post passes through the installation component and is fixed with the reinforcing plate. The battery top cover can improve the energy density of the battery and reduce the risk of short circuit of the battery.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery top cap and contain battery of this battery top cap.
Background
Lithium batteries are widely used in various industries due to their advantages of high energy density, long service life, etc., and in the field of new energy vehicles, it is always the goal pursued by battery manufacturers to increase the energy density of batteries. The top cover is one of the core components of the battery, and the requirement on the top cover is higher and higher.
The top cap among the prior art includes plastic board, apron, utmost point post and metal terminal, apron and battery case's open end sealing connection, and apron and plastic board distribute about respectively, and the metal terminal setting is connected with the metal terminal after passing plastic board and apron in proper order by the below of plastic board, and utmost point post is connected, and the apron is the aluminum alloy plate, and weight is unfavorable for improving the energy density of battery. In addition, since the cover plate is a metal plate, the metal terminal and the cover plate are easily overlapped by an external lead to form a short circuit, so that the battery is burnt out.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: provided is a battery top cover which can improve the energy density of a battery and can reduce the risk of short circuit of the battery.
The utility model discloses another aim at: provided is a battery which has high energy density and low short-circuit risk.
In order to achieve the purpose, the utility model adopts the following technical proposal:
on the one hand, provide a battery top cap, including apron, utmost point post and be used for the metal terminal of being connected with the external equipment electricity, the apron is the plastic board, apron and battery case's open end sealing connection, the metal terminal sets up the apron deviates from one side of electric core, the apron runs through battery case's inside and outside and has seted up the mounting hole, be connected with the reinforcing plate in the mounting hole, the middle part of reinforcing plate is run through and has been seted up first through-hole, utmost point post by the apron is close to one side of electric core is passed first through-hole with the metal terminal electricity is connected, utmost point post pass through the installation component with the reinforcing plate is fixed.
As a preferable technical solution of the battery top cap, the reinforcing plate is a rigid metal plate.
As a preferable aspect of the battery top cap, the thickness of the reinforcing plate is equal to the thickness of the cover plate.
As a preferred technical scheme of battery top cap, the inside wall of mounting hole has a stair structure, stair structure include first step face and with the perpendicular second step face of connecting of first step face, first step face with the thickness direction of apron is parallel, the second step face by first step face orientation the center level of mounting hole extends, the second step face is close to electric core setting, the reinforcing plate is close to a side butt of electric core is in on the second step face, the side of reinforcing plate with first step face welding.
As a preferred technical solution of the battery top cap, the mounting assembly includes a sealing ring and a fixing member, the terminal post is connected to the reinforcing plate through the sealing ring in an insulating manner, the fixing member is located between the metal terminal and the reinforcing plate, the sealing ring is located between the fixing member and the reinforcing plate, one of the fixing member and the reinforcing plate is provided with a jack, and the other of the fixing member and the reinforcing plate is provided with a protruding pillar, and the protruding pillar is inserted into the jack, so that the fixing member is connected to the reinforcing plate in an interference manner.
As a preferred technical scheme of battery top cap, the mounting is back to the concave recess that is equipped with in a side of apron, metal terminal sets up in the recess, the tank bottom of recess is seted up and is used for dodging the first hole of dodging of utmost point post.
As an optimal technical scheme of the battery top cover, the battery top cover further comprises an insulating support, the insulating support is arranged on one side, close to the battery core, of the cover plate, the insulating support is provided with a second through hole in a penetrating mode, and the pole sequentially penetrates through the second through hole and the first through hole from one side, close to the battery core, of the insulating support.
As a preferred technical scheme of battery top cap, still include explosion-proof valve subassembly, explosion-proof valve includes explosion-proof piece and rupture membrane, the apron runs through and has seted up the pressure release hole, the rupture membrane sets up in the pressure release hole, the explosion-proof piece is located the apron with between the insulating support, just the explosion-proof piece pass through the strengthening rib with the pore wall welding in pressure release hole.
As an optimal technical scheme of the battery top cover, the cover plate is further provided with a liquid injection hole, and the insulating support is provided with a second avoiding hole for avoiding the liquid injection hole.
In another aspect, a battery is also provided, which comprises the battery top cover.
The utility model has the advantages that: because the apron is insulating plastic board, welds the reinforcing plate in the mounting hole, utilizes the reinforcing plate to strengthen the overall structure of apron, in metal terminal and utmost point post welding process, need extrude the direction of metal terminal orientation apron, because the existence of the reinforcing plate in the mounting hole can wholly strengthen the bearing capacity of apron, avoids the apron to be pressed and strides. Set up the apron into the plastic board, be different from the apron among the prior art and be aluminium alloy plate, the utility model discloses a battery top cap can effectively reduce the whole weight of apron, is favorable to improving the energy density of battery, in addition, because the apron is insulating plastic board, battery top cap when specifically using, even there is outside wire overlap joint between apron and metal terminal, the apron also can not be put through and lead to the short circuit with metal terminal to the risk of battery short circuit has been reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is an exploded view of a battery top cover according to an embodiment.
FIG. 2 is a view showing the structure of the reinforcing plate and reinforcing ribs assembled with the cover plate according to the embodiment.
Fig. 3 is a partial schematic view of another embodiment of the cover plate.
In the figure:
1. a cover plate; 11. mounting holes; 12. a liquid injection hole; 13. a pressure relief vent; 2. an insulating support; 21. a second through hole; 22. a second avoidance hole; 23. accommodating grooves; 3. a pole column; 4. a reinforcing plate; 41. a first through hole; 42. a jack; 5. a step structure; 51. a first step surface; 52. a second step surface; 6. an explosion-proof valve assembly; 61. an explosion-proof sheet; 62. an explosion-proof membrane; 7. mounting the component; 71. a fixing member; 711. a groove; 712. a first avoidance hole; 72. a seal ring; 8. reinforcing ribs; 9. and a metal terminal.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 and 2, the utility model provides a battery top cover is installed at battery case's open end, including apron 1, insulating support 2, utmost point post 3 and be used for the metal terminal 9 of being connected with the external equipment electricity. The cover plate 1 is a plastic plate, preferably made of PP (polypropylene) materials, and the plastic plate formed by the process has the characteristics of high temperature resistance and high strength. The cap plate 1 is sealed with the open end of the battery case. In the present embodiment, the cap plate 1 is hermetically welded to the open end of the battery case, specifically, the cap plate 1 is laser welded to the open end of the battery case. Insulating support 2 sets up in the apron 1 one side that is close to electric core, and insulating support 2 adopts insulating material to make, and the effect and the inside electric core of battery case that provide the support for apron 1 carry on spacingly, and metal terminal 9 sets up the one side that deviates from electric core at apron 1. The cover plate 1 penetrates through the inside and the outside of the battery shell and is provided with a mounting hole 11, and a reinforcing plate 4 is connected in the mounting hole 11. The reinforcing plate 4 is preferably welded in the mounting hole 11, but in other embodiments, the reinforcing plate 4 may be connected in the mounting hole 11 by other means, such as bonding the reinforcing plate 4 to the hole wall of the mounting hole 11 with an adhesive, or connecting the reinforcing plate 4 to the hole wall of the mounting hole 11 with a connecting screw. The middle part of reinforcing plate 4 runs through and has seted up first through-hole 41, and insulating support 2 runs through and has seted up second through-hole 21, and utmost point post 3 passes second through-hole 21 and first through-hole 41 and metal terminal 9 welding in proper order by one side that insulating support 2 is close to electric core, makes utmost point post 3 and metal terminal 9 realize the electricity and is connected, and utmost point post 3 is fixed with reinforcing plate 4 through installation component 7.
In this embodiment, because apron 1 is insulating plastic board, connects reinforcing plate 4 in mounting hole 11, utilizes reinforcing plate 4 to strengthen the overall structure of apron 1, in metal terminal 9 and 3 welding process of utmost point post, need extrude metal terminal 9 towards the direction of apron 1, because the bearing capacity of apron 1 can wholly be strengthened in the existence of reinforcing plate 4 in the mounting hole 11, avoids apron 1 to be pressed and strides. Set up apron 1 into the plastic board, be different from apron 1 among the prior art for aluminium alloy plate, the utility model discloses a battery top cap can effectively reduce apron 1's whole weight, is favorable to improving the energy density of battery, in addition, because apron 1 is insulating plastic board, battery top cap when specifically using, even there is outside wire overlap joint between apron 1 and metal terminal 9, apron 1 can not be put through yet with metal terminal 9 and lead to the short circuit to the risk of battery short circuit has been reduced.
In the present embodiment, the reinforcing plate 4 is a rigid metal plate. The reinforcing plate 4 is preferably an aluminum alloy plate, but in other embodiments, the reinforcing plate 4 may be a stainless steel plate or the like. The reinforcing plate 4 is made of rigid metal plate, so that the reinforcing plate 4 can provide enough structural strength for the cover plate 1 under the condition that the thickness of the reinforcing plate 4 is small.
In one embodiment, the thickness of the reinforcing plate 4 is equal to the thickness of the cover plate 1, and the reinforcing plate 4 is welded to the mounting hole 11 to keep the surface of the reinforcing plate 4 flush with the surface of the cover plate 1.
In another embodiment, referring to fig. 3, the inner sidewall of the mounting hole 11 has a stepped structure 5, the stepped structure 5 includes a first stepped surface 51 and a second stepped surface 52 vertically connected to the first stepped surface 51, the first stepped surface 51 is parallel to the thickness direction of the cover plate 1, the second stepped surface 52 extends horizontally from the first stepped surface 51 toward the center of the mounting hole 11, the second stepped surface 52 is disposed near the battery cell, one side surface of the reinforcing plate 4 near the battery cell abuts against the second stepped surface 52, and the side surface of the reinforcing plate 4 is welded to the first stepped surface 51. In this embodiment, the step structure 5 is mainly used to facilitate assembling the reinforcing plate 4, and the second step surface 52 can provide a supporting function for the reinforcing plate 4. In order to actually weld the reinforcing plate 4, the reinforcing plate 4 is first placed on the second step surface 52 so that the reinforcing plate 4 is supported inside the mounting hole 11, and then the reinforcing plate 4 is welded to the first step surface 51. Preferably, the height of the first step surface 51 is equal to the thickness of the reinforcing plate 4, which is beneficial to keep a side of the reinforcing plate 4 away from the battery cell flush with a side of the cover plate 1 away from the battery cell. Of course, in practical design, the thickness of the reinforcing plate 4 can be flexibly changed as required.
The mounting assembly 7 comprises a sealing ring 72 and a fixing piece 71, the pole 3 is in insulation connection with the reinforcing plate 4 through the sealing ring 72, the fixing piece 71 is located between the metal terminal 9 and the reinforcing plate 4, the sealing ring 72 is located between the fixing piece 71 and the reinforcing plate 4, the reinforcing plate 4 is provided with a jack 42, the fixing piece 71 is provided with a convex column, and the convex column is inserted in the jack 42 so that the fixing piece 71 is in interference connection with the reinforcing plate 4. Through the interference insertion of the convex column in the jack 42, the position of the fixing member 71 is limited, so that the fixing member 71 is stably connected with the reinforcing plate 4, the torsion resistance of the fixing member 71 is effectively improved, and in addition, the sealing ring 72 is pressed between the fixing member 71 and the reinforcing plate 4 after the fixing member 71 is in interference connection with the reinforcing plate 4 because the sealing ring 72 is positioned between the fixing member 71 and the reinforcing plate 4. In this embodiment, four protruding columns are disposed, the four protruding columns are distributed at intervals on a side surface of the fixing member 71 facing the reinforcing plate 4, and the insertion holes 42 on the reinforcing plate 4 correspond to the protruding columns one by one. In another embodiment, the convex pillar may be disposed on the reinforcing plate 4, and the insertion hole 42 is disposed on the fixing member 71; or, the reinforcing plate 4 and the fixing member 71 are provided with the convex columns and the insertion holes 42 at the same time, and each convex column is correspondingly inserted into one insertion hole 42.
A groove 711 is concavely arranged on one side surface of the fixing member 71, which faces away from the cover plate 1, the metal terminal 9 is arranged in the groove 711, and a first avoidance hole 712 for avoiding the pole 3 is arranged at the bottom of the groove 711. Specifically, the metal terminal 9 is fixedly disposed in the groove 711 by welding or bonding, so that the metal terminal 9 is stably connected to the fixing member 71, and the metal terminal 9 is prevented from falling off from the fixing member 71. The groove 711 is used for accommodating the metal terminal 9, so that the thickness of the battery top cover can be effectively reduced, the space occupation of the battery top cover is favorably reduced, and the integral attractiveness of the battery top cover can be improved.
Wherein, battery top cap still includes explosion-proof valve subassembly 6, and the explosion-proof valve includes explosion-proof piece 61 and rupture membrane 62, and cover plate 1 runs through and has seted up pressure release hole 13, and rupture membrane 62 sets up in pressure release hole 13, and explosion-proof piece 61 is located between cover plate 1 and insulating support 2, and explosion-proof piece 61 passes through the pore wall welding of strengthening rib 8 and pressure release hole 13. With explosion-proof piece 61 through the pore wall welding of strengthening rib 8 with pressure release hole 13, be favorable to the welding strength between the pore wall of explosion-proof piece 61 and pressure release hole 13, in addition, strengthening rib 8 can further strengthen the structural strength of apron 1, avoids leading to apron 1 to take place to warp owing to seting up of pressure release hole 13.
Further, the concave holding tank 23 that is used for holding the explosion-proof piece 61 that is equipped with in a side that is close to apron 1 of insulating support 2, avoid explosion-proof piece 61 to form the position to interfere and lead to apron 1 and insulating support 2 can't closely laminate to insulating support 2.
The cover plate 1 is further provided with a liquid injection hole 12, and the insulating support 2 is provided with a second avoidance hole 22 for avoiding the liquid injection hole 12. The liquid injection hole 12 is used for injecting electrolyte into the battery shell, and the liquid injection hole 12 is plugged after the electrolyte injection is completed.
In another embodiment, a battery is also provided, which includes a battery top cap of any of the above structures. The battery has the characteristics of high energy density and low short circuit risk.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a battery top cap, its characterized in that, includes apron, utmost point post and is used for the metal terminal of being connected with the external equipment electricity, the apron is the plastic board, apron and battery case's open end sealing connection, the metal terminal sets up the apron deviates from one side of electric core, the apron runs through battery case's inside and outside and has seted up the mounting hole, the mounting hole is connected with the reinforcing plate, the middle part of reinforcing plate is run through and has been seted up first through-hole, utmost point post by the apron is close to one side of electric core is passed first through-hole with the metal terminal electricity is connected, utmost point post pass through the installation component with the reinforcing plate is fixed.
2. The battery top cap of claim 1, wherein the reinforcing plate is a rigid metal plate.
3. The battery top cap of claim 1, wherein the reinforcing plate has a thickness equal to a thickness of the cap plate.
4. The battery top cap of claim 1, wherein the inner sidewall of the mounting hole has a step structure, the step structure includes a first step surface and a second step surface vertically connected to the first step surface, the first step surface is parallel to the thickness direction of the cap plate, the second step surface extends horizontally from the first step surface toward the center of the mounting hole, the second step surface is disposed near the battery cell, a side surface of the reinforcing plate near the battery cell abuts against the second step surface, and a side surface of the reinforcing plate is welded to the first step surface.
5. The battery top cap according to any one of claims 1 to 4, wherein the mounting assembly comprises a sealing ring and a fixing member, the pole is in insulation connection with the reinforcing plate through the sealing ring, the fixing member is located between the metal terminal and the reinforcing plate, the sealing ring is located between the fixing member and the reinforcing plate, one of the fixing member and the reinforcing plate is provided with a jack, and the other of the fixing member and the reinforcing plate is provided with a convex column which is inserted into the jack, so that the fixing member is in interference connection with the reinforcing plate.
6. The battery top cap of claim 5, wherein a recess is concavely disposed on a side of the fixing member facing away from the cover plate, the metal terminal is disposed in the recess, and a first avoidance hole for avoiding the pole is disposed at a bottom of the recess.
7. The battery top cap according to any one of claims 1 to 4, further comprising an insulating support, wherein the insulating support is disposed on one side of the cover plate close to the battery core, a second through hole is formed through the insulating support, and the pole sequentially passes through the second through hole and the first through hole from one side of the insulating support close to the battery core.
8. The battery top cover according to claim 7, further comprising an explosion-proof valve assembly, wherein the explosion-proof valve comprises an explosion-proof sheet and an explosion-proof film, the cover plate is provided with a pressure relief hole in a penetrating manner, the explosion-proof film is arranged in the pressure relief hole, the explosion-proof sheet is located between the cover plate and the insulating support, and the explosion-proof sheet is welded with the hole wall of the pressure relief hole through a reinforcing rib.
9. The battery top cover according to claim 7, wherein the cover plate is further provided with a liquid injection hole, and the insulating support is provided with a second escape hole for escaping from the liquid injection hole.
10. A battery comprising the battery top cover of any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121220477.2U CN215184246U (en) | 2021-06-02 | 2021-06-02 | Battery top cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121220477.2U CN215184246U (en) | 2021-06-02 | 2021-06-02 | Battery top cap and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215184246U true CN215184246U (en) | 2021-12-14 |
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ID=79377143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121220477.2U Active CN215184246U (en) | 2021-06-02 | 2021-06-02 | Battery top cap and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215184246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169467A1 (en) * | 2022-03-11 | 2023-09-14 | 苏州美阅新能源有限公司 | Electrode column and battery cover plate |
-
2021
- 2021-06-02 CN CN202121220477.2U patent/CN215184246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169467A1 (en) * | 2022-03-11 | 2023-09-14 | 苏州美阅新能源有限公司 | Electrode column and battery cover plate |
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