CN219626864U - Top cap subassembly and battery - Google Patents
Top cap subassembly and battery Download PDFInfo
- Publication number
- CN219626864U CN219626864U CN202320493552.5U CN202320493552U CN219626864U CN 219626864 U CN219626864 U CN 219626864U CN 202320493552 U CN202320493552 U CN 202320493552U CN 219626864 U CN219626864 U CN 219626864U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- hole
- ceramic plate
- groove
- plate
- Prior art date
- 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.)
- Active
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a top cover assembly and a battery, wherein the top cover assembly comprises a cover plate, a pole, a ceramic plate and a fixing ring, wherein a first mounting hole is formed in the cover plate, the first mounting hole is provided with a first end and a second end, the inner diameter of the first end is larger than that of the second end, the ceramic plate is clamped between the first end and the second end, the fixing ring is fixed at the first end, the fixing ring and the hole wall of the first mounting hole clamp the ceramic plate, a second mounting hole is formed in the ceramic plate, and the pole is fixed in the second mounting hole. By arranging the ceramic plate, the cover plate and the pole can be insulated, so that the use of plastic parts is reduced; the ceramic material is stable, ageing deformation is not easy to generate even at high temperature, and the service life of the top cover component can be prolonged.
Description
Technical Field
The utility model relates to the technical field of energy storage equipment, in particular to a top cover assembly and a battery.
Background
At present, the lithium ion power battery has been widely used in the fields of computers, mobile phones and the like due to the advantages of high energy density, high power density, multiple recycling times, long storage time and the like. In the prior art, most of the pole posts of the power battery and the cover plate are fixed, insulated and sealed by plastic parts, and the plastic parts are poor in heat resistance and can age and soften under the condition of long-time high temperature, so that the service life of the battery is seriously influenced.
Disclosure of Invention
One object of an embodiment of the utility model is to: provided is a roof module which is small in deformation and can be used in a high-temperature environment for a long time.
Another object of an embodiment of the utility model is to: a battery is provided, which has good quality and long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, a top cover assembly is provided, including apron, utmost point post, ceramic plate and solid fixed ring, be provided with first mounting hole on the apron, first mounting hole has first end and second end, the internal diameter of first end is greater than the internal diameter of second end, the ceramic plate card is located first end with between the second end, gu fixed ring fixes first end, just gu fixed ring with the pore wall of first mounting hole presss from both sides tightly the ceramic plate, be provided with the second mounting hole on the ceramic plate, the utmost point post is fixed in the second mounting hole.
As a preferable scheme of the top cover assembly, an insulating film is arranged on one side, close to the battery cell, of the cover plate, a first avoidance hole is formed in the insulating film, and the first avoidance hole is opposite to the position of the pole.
As a preferable scheme of top cap subassembly, be provided with annotate the liquid hole on the apron, the insulating film is close to a side of apron is sunken to be provided with first holding tank, first holding tank with annotate the liquid hole intercommunication, the tank bottom of first holding tank is provided with the buffer hole, the buffer hole with annotate the dislocation set of liquid hole.
As a preferable scheme of the top cover assembly, the cover plate is provided with a first side face and a second side face which are opposite, the first side face faces the battery cell, a second accommodating groove is concavely formed in the first side face, the second accommodating groove is communicated with the first accommodating groove, a first boss is arranged at a position, corresponding to the second accommodating groove, of the second side face, and the liquid injection hole is formed in the bottom of the second accommodating groove and penetrates through the first boss.
As a preferred embodiment of the top cover assembly, the top cover assembly includes a first sealing ring, which is clamped between the ceramic plate and the first mounting hole.
As a preferable scheme of the top cover assembly, the first mounting hole is a step hole, and the step surface of the first mounting hole and the fixing ring press the ceramic plate.
As a preferred embodiment of the top cover assembly, a second sealing ring is included, and the second sealing ring is clamped between the ceramic plate and the pole.
As a preferable scheme of the top cover assembly, a fixing groove is formed in one side of the cover plate, the first mounting hole is formed in the bottom of the fixing groove, and the fixing ring is inserted into the fixing groove and welded with the groove wall of the fixing groove.
As a preferable mode of the top cover assembly, the cover plate is provided with a first side face facing the battery cell, the first side face is provided with a second boss, and the first mounting hole penetrates through the second boss.
In a second aspect, a battery is provided, including a housing, a battery cell, and the top cap assembly described above, where the top cap assembly is fixedly connected with the housing and seals the cavity.
The beneficial effects of the utility model are as follows: by arranging the ceramic plate, the cover plate and the pole can be insulated, so that the use of plastic parts is reduced; the ceramic material is stable, ageing deformation is not easy to generate even at high temperature, and the service life of the top cover component can be prolonged.
Drawings
The utility model is described in further detail below with reference to the drawings and examples.
Fig. 1 is a schematic view of a top cover assembly according to an embodiment of the present utility model.
Fig. 2 is a schematic cross-sectional view of a top cap assembly according to an embodiment of the present utility model.
Fig. 3 is a schematic cross-sectional view of a portion of a header assembly according to an embodiment of the present utility model.
Fig. 4 is a schematic cross-sectional view of another portion of a header assembly according to an embodiment of the present utility model.
Fig. 5 is a schematic view of an insulating film according to an embodiment of the present utility model.
Fig. 6 is a schematic view of a cover plate according to an embodiment of the utility model.
Fig. 7 is a schematic view of a ceramic plate according to an embodiment of the present utility model.
In the figure:
1. a cover plate; 101. a first mounting hole; 102. a liquid injection hole; 103. a first boss; 104. a second accommodation groove; 105. a first side; 106. a second side; 107. a fixing groove; 108. a second boss; 109. an explosion-proof valve; 2. a pole; 201. a column; 202. a terminal; 203. a bottom plate; 3. a ceramic plate; 301. a second mounting hole; 302. a positioning groove; 4. a fixing ring; 5. an insulating film; 501. a first avoidance hole; 502. a first accommodation groove; 503. buffering holes; 504. a second avoidance hole; 6. a first seal ring; 7. and a second sealing ring.
Detailed Description
In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. 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 fall within the scope of the utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the 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.
As shown in fig. 1 to 3 and 6, the top cover assembly provided by the utility model comprises a cover plate 1, a pole 2, a ceramic plate 3 and a fixing ring 4, wherein a first mounting hole 101 is formed in the cover plate 1, a second mounting hole 301 is formed in the ceramic plate 3, the first mounting hole 101 is provided with a first end and a second end, the inner diameter of the first end is larger than that of the second end, the fixing ring 4 is clamped between the first end and the second end, the fixing ring 4 is fixed at the first end, the wall of the fixing ring 4 and the wall of the first mounting hole 101 clamp the ceramic plate 3, and the pole 2 is fixed in the second mounting hole 301 of the ceramic plate 3. By arranging the ceramic plate 3, the cover plate 1 and the pole 2 can be insulated, the original plastic part structure of the top cover assembly is omitted, and the use of plastic parts is reduced; the ceramic material is stable, ageing deformation is not easy to generate even at high temperature, and the service life of the top cover component can be prolonged.
Further, one side of the cover plate 1, which is close to the battery cell, is provided with an insulating film 5, a first avoiding hole 501 is formed in the insulating film 5, and the first avoiding hole 501 is opposite to the pole 2 in position. In this embodiment, the top cover assembly is applied to the battery, and the insulating film 5 is provided, so that the cover plate 1 and the battery cell can be isolated, and the short circuit between the battery cell and the cover plate 1 is avoided. In the conventional battery design, the cover plate 1 and the battery cell are generally isolated by plastic parts, and the insulating film 5 is directly attached to the cover plate 1 in the embodiment, so that the interval distance between the cover plate 1 and the battery cell can be shortened, the assembly difficulty of the battery cell can be reduced, and the production efficiency is improved. The insulating film 5 in this embodiment is made of PET (polyethylene glycol terephthalate, polyethylene terephthalate) material.
Referring to fig. 4 and 5, preferably, the cover plate 1 is provided with a liquid injection hole 102, a side surface of the insulating film 5, which is close to the cover plate 1, is concavely provided with a first accommodating groove 502, the first accommodating groove 502 is communicated with the liquid injection hole 102, a buffer hole 503 is arranged at the bottom of the first accommodating groove 502, and the buffer hole 503 is arranged in a dislocation manner with the liquid injection hole 102. By arranging the buffer hole 503, electrolyte can be prevented from directly impacting on the battery core when the battery is injected, thereby avoiding the occurrence of bad battery core. In this embodiment, the liquid injection hole 102 is opposite to the center of the bottom of the first accommodation groove 502, the buffer holes 503 are provided with four, and the four buffer holes 503 are annularly and uniformly arranged around the central axis of the first accommodation groove 502. Electrolyte enters the first receiving groove 502 from the filling hole 102 and then uniformly flows into the inside of the battery from the four buffer holes 503.
Further, the cover plate 1 is provided with an explosion-proof valve 109, and the insulating film 5 is provided with a second avoiding hole 504 corresponding to the explosion-proof valve 109.
Referring to fig. 3 and 6, further, the cover plate 1 has a first side 105 and a second side 106 opposite to each other, the first side 105 faces the battery cell, the insulating film 5 is disposed on the first side 105, the first side 105 is concavely provided with a second accommodating groove 104, the second accommodating groove 104 is communicated with the first accommodating groove 502, the second side 106 is provided with a first boss 103 corresponding to the position of the second accommodating groove 104, and the liquid injection hole 102 is disposed at the bottom of the second accommodating groove 104 and penetrates through the first boss 103. In this embodiment, the notch of the first receiving groove 502 and the notch of the second receiving groove 104 are positioned opposite to each other, and the first receiving groove 502 and the second receiving groove 104 are combined such that a buffer chamber for buffering the flow rate of the electrolyte entering the battery is formed between the insulating film 5 and the cover plate 1. The second accommodating groove 104 and the first boss 103 are arranged, so that the height of the liquid injection hole 102 can be increased, the interval distance between the liquid injection hole 102 and the insulating film 5 is increased, and the plugging piece is convenient to install after liquid injection; in this embodiment, the first accommodating groove 502 on the insulating film 5 is formed by punching, and the arrangement of the second accommodating groove 104 on the cover plate 1 can reduce the punching depth of the first accommodating groove 502, and reduce the occupation of the buffer structure on the insulating film 5 to the internal space of the battery. In this embodiment, the height of the first boss 103 is lower than the height of the pole 2, a sinking platform is disposed on the first boss 103, the depth of the sinking platform is 0.5-1.0 mm, and the liquid injection hole 102 is disposed at the bottom of the sinking platform.
Further, the first mounting hole 101 is a step hole, and the step surface of the first mounting hole 101 and the fixing ring 4 compress the ceramic plate 3. By arranging the first mounting hole 101 as a step hole, the processing of the first mounting hole 101 can be facilitated, and the mounting and fixing of the ceramic plate 3 can be facilitated. In other embodiments, the first mounting hole 101 may also be a tapered hole, i.e. the hole wall of the first mounting hole 101 is inclined.
In the present embodiment, the top cover assembly includes the first sealing ring 6, and the first sealing ring 6 is interposed between the ceramic plate 3 and the stepped surface of the first mounting hole 101. Through setting up first sealing washer 6, can shutoff ceramic plate 3 and the clearance between the first mounting hole 101, promote the leakproofness of top cap subassembly, prevent the electrolyte seepage. In other embodiments, the ceramic plate 3 may also be manufactured using a ceramic rubber sealing material, so that the ceramic plate 3 itself has an intrinsic property of compression resistance and good plasticity of rubber, achieving a sealing effect.
Optionally, the top cover assembly further comprises a second sealing ring 7, and the second sealing ring 7 is clamped between the ceramic plate 3 and the pole 2. Through setting up second sealing washer 7, can shutoff ceramic plate 3 and the clearance between the utmost point post 2, promote the leakproofness of top cap subassembly, prevent the electrolyte seepage. In this embodiment, the pole 2 includes a post 201, a terminal 202 and a bottom plate 203, the post 201 is disposed in a second mounting hole 301 of the ceramic plate 3 in a penetrating manner, the terminal 202 and the bottom plate 203 are disposed on two sides of the ceramic plate 3 and welded to the post 201, and the second seal ring 7 is disposed between the ceramic plate 3 and the pole 2.
Further, the second mounting hole 301 is a stepped hole, a stepped surface is also provided on the outer periphery of the pole 2, the cross section of the second seal ring 7 is L-shaped, a part of the second seal ring 7 is clamped between the stepped surface of the second mounting hole 301 and the stepped surface of the pole 2, and another part of the second seal ring 7 is clamped between the hole wall of the second mounting hole 301 and the outer peripheral surface of the pole 2. In this embodiment, the cross section of the first sealing ring 6 is also L-shaped, and a part of the first sealing ring 6 is clamped between the ceramic plate 3 and the step surface of the first mounting hole 101, and another part of the first sealing ring 6 is clamped between the bottom plate 203 of the pole 2 and the wall of the first mounting hole 101.
Preferably, one side of the cover plate 1 is provided with a fixing groove 107, the first mounting hole 101 is provided at a groove bottom of the fixing groove 107, and the fixing ring 4 is inserted into the fixing groove 107 and welded with a groove wall of the fixing groove 107. In this embodiment, the fixing ring 4 is welded and fixed with the cover plate 1, and the fixing groove 107 is provided, so that the cover plate 1 and the fixing ring 4 can be conveniently installed and positioned, and the difficulty of welding operation is reduced.
Referring to fig. 3 and 7, alternatively, a circle of positioning groove 302 is provided on a side surface of the ceramic plate 3 away from the battery cell, the positioning groove 302 extends to the periphery of the ceramic plate 3, the fixing ring 4 is inserted into the positioning groove 302 and abuts against the groove bottom of the positioning groove 302, and the surface of the fixing ring 4 is flush with the surface of the ceramic plate 3. By providing the positioning groove 302, the fixing ring 4 can be prevented from protruding out of the ceramic plate 3, and the appearance of the top cover assembly can be improved
Further, the first side 105 of the cover plate 1 is provided with a second boss 108, and the first mounting hole 101 penetrates the second boss 108. By providing the second boss 108, the local thickness of the connection region of the cap plate 1 and the pole 2 can be increased, thereby increasing the connection stability of the cap plate 1 and the pole 2.
The embodiment also provides a battery, which comprises a shell, a battery cell and the top cover assembly in any embodiment, wherein the battery cell is arranged in a cavity of the shell, and the top cover assembly is fixedly connected with the shell and seals off the cavity. Because the top cover component is not easy to age and deform at high temperature, the service life of the top cover component can be prolonged, and therefore, the battery containing the top cover component has good quality and long service life.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (10)
1. The utility model provides a top cap subassembly, includes apron and utmost point post, its characterized in that still includes ceramic plate and solid fixed ring, be provided with first mounting hole on the apron, first mounting hole has first end and second end, the internal diameter of first end is greater than the internal diameter of second end, the ceramic plate card is located first end with between the second end, gu fixed ring fixes first end, just gu fixed ring with the pore wall of first mounting hole presss from both sides tightly the ceramic plate, be provided with the second mounting hole on the ceramic plate, the utmost point post is fixed in the second mounting hole.
2. The top cover assembly according to claim 1, wherein an insulating film is arranged on one side, close to the battery cell, of the cover plate, a first avoidance hole is formed in the insulating film, and the first avoidance hole is opposite to the pole.
3. The top cover assembly according to claim 2, wherein the cover plate is provided with a liquid injection hole, a side surface of the insulating film, which is close to the cover plate, is concavely provided with a first accommodating groove, the first accommodating groove is communicated with the liquid injection hole, the bottom of the first accommodating groove is provided with a buffer hole, and the buffer hole and the liquid injection hole are arranged in a staggered manner.
4. The header assembly of claim 3, wherein the cover plate has opposite first and second sides, the first side facing the battery cell, a second receiving groove is concavely formed in the first side, the second receiving groove is in communication with the first receiving groove, a first boss is formed at a position of the second side corresponding to the second receiving groove, and the liquid injection hole is formed at a bottom of the second receiving groove and penetrates through the first boss.
5. The header assembly of any one of claims 1-4, comprising a first seal ring disposed in clamping relation between the ceramic plate and the first mounting hole.
6. The top cover assembly according to any one of claims 1 to 4, wherein the first mounting hole is a stepped hole, and a stepped surface of the first mounting hole presses the ceramic plate with the fixing ring.
7. The cap assembly of any one of claims 1-4, including a second sealing ring that is clampingly disposed between the ceramic plate and the post.
8. The roof assembly of any one of claims 1-4, wherein a fixing groove is provided at one side of the cover plate, the first mounting hole is provided at a groove bottom of the fixing groove, and the fixing ring is inserted into the fixing groove and welded with a groove wall of the fixing groove.
9. The header assembly of any one of claims 1-4, wherein the cover has a first side facing the cell, the first side being provided with a second boss, the first mounting hole extending through the second boss.
10. A battery comprising a housing and a battery cell disposed within a cavity of the housing, further comprising the cap assembly of any one of claims 1-9 fixedly connected to the housing and sealing the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320493552.5U CN219626864U (en) | 2023-03-10 | 2023-03-10 | Top cap subassembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320493552.5U CN219626864U (en) | 2023-03-10 | 2023-03-10 | Top cap subassembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219626864U true CN219626864U (en) | 2023-09-01 |
Family
ID=87794333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320493552.5U Active CN219626864U (en) | 2023-03-10 | 2023-03-10 | Top cap subassembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219626864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117855773A (en) * | 2024-03-04 | 2024-04-09 | 厦门海辰储能科技股份有限公司 | Top cover assembly, sealing process of liquid injection hole, energy storage device and energy storage system |
-
2023
- 2023-03-10 CN CN202320493552.5U patent/CN219626864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117855773A (en) * | 2024-03-04 | 2024-04-09 | 厦门海辰储能科技股份有限公司 | Top cover assembly, sealing process of liquid injection hole, energy storage device and energy storage system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211907492U (en) | Top cover assembly and battery | |
| CN112993494A (en) | Battery top cap and battery | |
| CN219626864U (en) | Top cap subassembly and battery | |
| CN212485426U (en) | Battery top cap and battery cell | |
| CN212113760U (en) | Energy storage device | |
| CN215869579U (en) | Novel extremely simple cover plate structure of square battery | |
| CN218070150U (en) | Insulating part, end cover assembly, battery pack and electric equipment of battery | |
| CN216818421U (en) | Rectangular shape lithium cell top cap structure | |
| CN216288678U (en) | Battery top cap and battery | |
| CN215955379U (en) | Battery cover, electric energy storage part and vehicle | |
| CN201041812Y (en) | A battery cover board component and battery | |
| CN213636126U (en) | Battery top cap and battery | |
| CN219350442U (en) | Cylindrical lithium ion battery electrode cover plate and cylindrical lithium ion battery | |
| CN218919074U (en) | Prismatic battery and battery module | |
| CN221009072U (en) | Positive and negative electrode cover plate assembly of full tab and battery | |
| CN220439745U (en) | Top cap subassembly and battery | |
| CN213278203U (en) | Power battery top cover structure and power battery | |
| CN211320140U (en) | Stable and reliable power battery top cover | |
| CN219226431U (en) | Top cover structure of power battery and power battery | |
| CN217903263U (en) | Integrated top cover assembly structure | |
| CN220963539U (en) | Battery cell cover plate and battery cell | |
| CN219739266U (en) | Battery and battery device | |
| CN218039762U (en) | Energy storage device with large volume and convenient assembly | |
| CN220439746U (en) | Secondary battery cover plate | |
| CN218215373U (en) | Fuel cell and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |