CN219642962U - Bare cell bracket and battery - Google Patents
Bare cell bracket and battery Download PDFInfo
- Publication number
- CN219642962U CN219642962U CN202320495842.3U CN202320495842U CN219642962U CN 219642962 U CN219642962 U CN 219642962U CN 202320495842 U CN202320495842 U CN 202320495842U CN 219642962 U CN219642962 U CN 219642962U
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- Prior art keywords
- bare cell
- support
- battery
- shell
- explosion
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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 description 13
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 abstract description 36
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002356 single layer Substances 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
Abstract
The utility model provides a bare cell support and a battery, wherein the bare cell support is arranged in the battery, the battery comprises a shell and a bare cell, an explosion-proof valve is arranged on the side wall of the shell, a gap is arranged between the bare cell and the side wall in the shell, the bare cell support is arranged in the gap, the bare cell support comprises a support body, a groove is arranged on the support body, the support body is matched with the gap in size, and when the bare cell support is installed in the shell, the opening direction of the groove faces to the bare cell. The bare cell bracket provided by the utility model can reduce the addition amount of electrolyte in the battery, thereby reducing the cost of the battery, prolonging the service life of the battery and reducing the potential safety hazard.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a bare cell bracket and a battery.
Background
With the continuous development of new energy industry, the safety performance requirements of people on batteries are also higher and higher. For example, in order to ensure that the square battery cell does not explode when in thermal runaway, an explosion-proof valve is usually arranged on a top cover or a shell of the square battery cell, wherein the grouping rate of the square battery cell module can be improved by arranging the explosion-proof valve on the shell, and arcing can be avoided.
However, in the case where the explosion-proof valve is provided in the case, a certain space needs to be reserved between the bare cell and the inner wall of the side surface of the explosion-proof valve in order to allow the gas generated when the battery is thermally out of control to smoothly reach the explosion-proof valve. Because the explosion-proof valve of the battery is usually oriented to the ground when the battery is assembled into a module, a large amount of electrolyte is caused to be positioned in a gap between the bare cell and the shell on one side of the explosion-proof valve under the action of gravity. In addition, since electrolyte is consumed during the battery cycle, it is necessary to add some electrolyte more in order to secure the battery cycle performance. However, this causes an increase in cost and gas generation during high temperature, resulting in a decrease in battery performance, causing a safety hazard.
Disclosure of Invention
The utility model solves the problems of larger injection amount of battery electrolyte, higher cost and easy potential safety hazard in the prior art.
In order to solve the problems, the utility model provides a bare cell support, which is arranged in a battery, wherein the battery comprises a shell and a bare cell, an explosion-proof valve is arranged on the side wall of the shell, a gap is arranged between the bare cell and the side wall in the shell, the bare cell support is arranged in the safety gap, the bare cell support comprises a support body, a groove is arranged on the support body, the support body is matched with the gap in size, and when the bare cell support is installed in the shell, the opening direction of the groove faces to the bare cell.
Preferably, the bottom of the groove is provided with a vent hole, and when the bare cell bracket is installed in the shell, the position of the vent hole corresponds to the position of the explosion-proof valve.
Preferably, the longitudinal cross-sectional shape of the groove includes a circular arc shape, a conical shape or a rectangular shape.
Preferably, the bottom of the bracket body is provided with a support structure.
Preferably, the support structure comprises a plurality of bar-shaped legs arranged parallel to each other.
Preferably, the longitudinal section of the strip-shaped support leg comprises an arc shape or a rectangle.
Preferably, a plurality of reinforcing ribs are further arranged at the bottom of the support body, and the reinforcing ribs are parallel to each other and are mutually intersected with the strip-shaped supporting legs.
The bare cell support can be arranged in a shell of a battery, such as a square battery cell, and can be arranged in the shell because the bare cell support is matched with the size, particularly the height size, of a gap between the side wall of the shell provided with the explosion-proof valve and the bare cell, so that the bare cell support can be arranged in the shell, the bare cell in the shell can be supported, the stability of the bare cell is improved while the bare cell is not influenced, and the liquid level of electrolyte is higher under the condition that the addition amount of the electrolyte is the same because of the addition of the bare cell support, and the electrolyte which is lifted up by the whole height is accommodated through the groove on the support body, so that the bare cell can be fully contacted with the electrolyte, and the cycle performance of the square battery cell is ensured. The bare cell bracket provided by the utility model can reduce the addition amount of the electrolyte to a certain extent, thereby reducing the cost, reducing the gas production amount of the battery in the running process, prolonging the service life and reducing the potential safety hazard.
In addition, the utility model also provides a battery, which comprises the bare cell support, the bare cell and the shell, wherein the side wall of the shell is provided with the explosion-proof valve, the bare cell support and the bare cell are both positioned in the shell, the bare cell support is arranged below the bare cell, and the bottom end of the bare cell support is abutted against the side wall in the shell.
Preferably, the bare cell comprises a plurality of mutually overlapped positive plates and negative plates, a diaphragm is arranged between the adjacent positive plates and negative plates, and the diaphragm extends into a groove in the bare cell bracket.
Preferably, the battery further comprises a protective film, and the protective film is coated outside the bare cell and the bare cell bracket.
According to the utility model, the bare cell support, the bare cell and the shell form the battery, wherein the explosion-proof valve is arranged on the side wall of the shell, the bare cell support and the bare cell are both positioned in the shell, the bare cell support is arranged below the bare cell, so that the bare cell can be supported, the stability of the bare cell in the shell is improved, and the size, particularly the height size, of a gap between the inner wall of the explosion-proof valve arranged between the bare cell support and the shell and the bare cell is matched, so that the difficulty of entering the shell is not increased; in addition, because the bare cell support provided with the groove partially fills the gap between the bare cell and the inner wall of the explosion-proof valve arranged on the shell, the electrolyte quantity required to be injected into the battery is reduced, and meanwhile, the groove can contain the electrolyte, so that the electrolyte can be fully contacted with the bare cell and participate in the circulation of the bare cell, and the circulation performance of the battery is ensured. The battery provided by the utility model can reduce the addition amount of the electrolyte by adding the bare cell support structure, thereby reducing the cost, and the gas yield in the operation process is relatively low, so that the service life can be prolonged, and the potential safety hazard is reduced.
Drawings
Fig. 1 is a schematic longitudinal section of a battery according to an embodiment of the present utility model;
fig. 2 is a front view of a bare cell support according to an embodiment of the present utility model;
FIG. 3 is a top view of a bare cell support according to an embodiment of the present utility model;
fig. 4 is a front view of a bare cell support according to an embodiment of the present utility model;
FIG. 5 is a second top view of a bare cell support according to an embodiment of the present utility model;
FIG. 6 is a top view III of a bare cell support according to an embodiment of the present utility model;
fig. 7 is a schematic diagram of a longitudinal section of a battery according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a housing; 11-explosion-proof valve; 2-bare cell; 21-a positive plate; 211-a negative plate; 23-a membrane; 3-bare cell support; 31-a stent body; 32-grooves; 33-vent holes; 34-bar-shaped support legs; 35-reinforcing ribs; 4-protective film.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the coordinate system XYZ provided herein, the forward direction of the X axis represents the right direction, the reverse direction of the X axis represents the left direction, the forward direction of the Y axis represents the rear direction, the reverse direction of the Y axis represents the front direction, the forward direction of the Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction.
As shown in fig. 1 and 2, an embodiment of the present utility model provides a bare cell support, configured to be disposed in a battery, where the battery includes a casing 1 and a bare cell 2, an explosion-proof valve 11 is disposed on a side wall of the casing 1, a gap is disposed between the bare cell 2 and the side wall in the casing 1, the bare cell support 3 is disposed in the gap, the bare cell support 3 includes a support body 31, a groove 32 is disposed on the support body 31, the support body 31 is matched with the size of the gap, and when the bare cell support 3 is mounted in the casing 1, an opening direction of the groove 32 faces the bare cell 2.
The bare cell support 3 provided in this embodiment may be installed in a battery, for example, in a casing 1 of a square battery, and since the bare cell support 3 is matched with the size, particularly the height, of a gap between the inner wall of the casing 1 provided with an explosion-proof valve and the bare cell 2, the bare cell support 3 may be installed in the casing 1, so that the bare cell 2 in the casing 1 may not only be supported, but also the stability of the bare cell 2 may be improved without affecting the insertion of the bare cell 2 into the casing, and since the bare cell support 3 is added, the liquid level of the electrolyte may be higher under the condition that the electrolyte addition amount is the same, and the electrolyte lifted by the whole height may be accommodated by the groove 32 on the support body 31, so that the bare cell 2 may be fully contacted with the electrolyte, and the cycle performance of the square battery may be ensured. The bare cell bracket 3 provided by the utility model can reduce the addition amount of the electrolyte to a certain extent, thereby reducing the cost, reducing the gas production amount of the battery in the running process, prolonging the service life and reducing the potential safety hazard.
In one embodiment, as shown in fig. 3, a vent hole 33 is provided at the bottom of the groove 32, and the position of the vent hole 33 corresponds to the position of the explosion-proof valve 11 when the bare cell holder 3 is mounted in the housing 1.
In order to ensure that the generated gas can be more rapidly released through the explosion-proof valve 11 when the battery is in thermal runaway, the vent hole 33 is arranged at the bottom of the groove 32 and at the position corresponding to the explosion-proof valve 11, and the generated gas can rapidly pass through the vent hole 33 when the battery is in thermal runaway and is released through the explosion-proof valve 11, so that the potential safety hazard in the battery operation process is reduced.
Illustratively, the vent hole 33 includes a kidney-shaped hole, a round hole, or a square hole, and the size of the vent hole 33 matches the size of the explosion-proof valve 11.
Specifically, the longitudinal cross-section of the groove 32 (i.e., the cross-section parallel to the XZ plane in fig. 2) includes a circular arc shape, a conical shape or a rectangular shape, preferably a circular arc shape, the circular arc-shaped groove 32 is relatively easier to form, the processing difficulty is small, and the liquid surface of the groove 32 using the circular arc shape is higher than that of the rectangular groove 32 under the condition that the addition amount of the electrolyte is the same.
In one embodiment, as shown in fig. 4 and 5, the bottom of the bracket body 31 is provided with a support structure. The support structure arranged at the bottom of the support body can support the support body 31 and reduce the contact area between the bottom of the bare cell support 3 and the shell 1 when the bare cell support 3 is put into the shell, so that the difficulty of putting into the shell is reduced, and the strength of the support body 31 can be improved by increasing the support structure, and the bending caused by uneven stress when the bare cell support 3 is put into the shell is avoided.
Illustratively, the support structure includes a plurality of mutually parallel bar-shaped legs 34, the bar-shaped legs 34 extend along the length direction of the support body 31, when the bare cell support 3 is put into the shell, the contact surface between the bar-shaped legs 34 and the shell 1 is smaller, the generated resistance is smaller, and the difficulty of putting into the shell is lower. The longitudinal section of the bar-shaped support leg 34 includes a circular arc shape or a rectangular shape, preferably a circular arc shape, which can further reduce the contact area of the bar-shaped support leg 34 with the housing 1 and can provide good support and reinforcement for the bracket body 31.
As shown in fig. 4 and 5, the support structure includes two parallel bar-shaped legs 34, the length of the bar-shaped legs 34 is the same as the length of the support body 31 (i.e., the length of the support body 31 in the Y-axis direction), the two bar-shaped legs 34 are respectively located at the left and right sides of the vent hole 33, and the longitudinal section (i.e., the section parallel to the XZ plane in fig. 4) of the bar-shaped legs 34 is arc-shaped, so that the support body 31 can be well supported, the structural strength of the support body 31 is improved, and the difficulty of shell entering is reduced.
In one embodiment, the bottom of the bracket body 31 is further provided with a plurality of reinforcing ribs 35, and a plurality of the reinforcing ribs 35 are parallel to each other and are disposed to cross the bar-shaped supporting legs 34.
In order to further improve the structural strength of the bare cell support, a plurality of reinforcing ribs 35 are further arranged at the bottom of the support body 31, and the reinforcing ribs 35 and the strip-shaped supporting legs 34 which are parallel to each other are arranged in a crossing manner, so that good support and reinforcing effects can be provided in the left-right direction and the front-back direction of the support body 31, and the deformation resistance of the bare cell support 3 is improved.
As shown in fig. 6, two reinforcing ribs 35 are provided at the bottom of the bracket body 31, the two reinforcing ribs 35 are parallel to each other and are disposed to cross each other with the bar-shaped legs 34, so that the bracket body 31 can be supported in both the front-rear direction and the left-right direction, and the structural strength of the bracket body 31 can be further improved.
Further, in order to avoid the influence of the reinforcing ribs 35 on the shell entering of the bare cell support 3, the height of the reinforcing ribs 35 protruding out of the support body 31 is smaller than that of the strip-shaped supporting legs 34 protruding out of the support body 31, so that the support body 31 can be reinforced, the contact area between the bare cell support 3 and the shell 1 cannot be increased, and the shell entering difficulty is reduced.
As shown in fig. 1, another embodiment of the present utility model provides a battery, including a bare cell support 3, a bare cell 2 and a casing 1 as described above, where an explosion-proof valve 11 is disposed on a side wall of the casing 1, the bare cell support 3 and the bare cell 2 are both located in the casing 1, and the bare cell support 3 is disposed below the bare cell 2, and a bottom end of the bare cell support 3 abuts against the side wall in the casing 1. According to the embodiment, the battery is formed by the bare cell support 3, the bare cell 2 and the shell 1, wherein the explosion-proof valve 11 is arranged on the side wall of the shell 1, the bare cell support 3 and the bare cell 2 are both positioned in the shell 1, the bare cell support 3 is arranged below the bare cell 2, the bare cell 2 can be supported, the stability of the bare cell 2 in the shell 1 is improved, and the size, particularly the height size, of a gap between the bare cell support 3 and the inner wall of the shell 1 provided with the explosion-proof valve 11 and the bare cell 2 is matched, so that the difficulty in shell entering is not caused; in addition, as the bare cell bracket 3 provided with the groove 32 partially fills the gap between the bare cell 2 and the inner wall of the shell 1 provided with the explosion-proof valve 11, the electrolyte quantity required to be injected into the battery is reduced, and meanwhile, the groove 32 can contain the electrolyte, so that the electrolyte can be fully contacted with the bare cell 2 and participate in the circulation of the bare cell 2, and the circulation performance of the battery is ensured. The battery provided by the utility model can reduce the addition amount of the electrolyte by adding the bare cell bracket 3 structure, thereby reducing the cost, and the gas yield in the operation process is relatively low, so that the service life can be prolonged, and the potential safety hazard is reduced.
In one embodiment, the battery is a square battery cell, and in order to improve the grouping rate when the square battery cell forms a battery module, the explosion-proof valve 11 is generally disposed on the bottom wall of the housing 1, and the bottom end of the bare cell support 3 is abutted against the bottom wall of the housing 1. When the battery is square battery core, because the explosion-proof valve 11 is located on the bottom wall of the shell 1, and the gap is formed between the bare cell 2 and the bottom wall of the shell 1, the influence of gravity is caused, a large amount of electrolyte is filled in the gap, in order to ensure the circulation performance of the battery, excessive electrolyte needs to be added, and after the bare cell support 3 is added, the bare cell support 3 can occupy part of the space in the gap, so that the addition amount of the electrolyte is reduced, and the groove 32 in the bare cell support 3 can accommodate the electrolyte, so that the electrolyte participates in the circulation of the bare cell 2, the addition amount of the electrolyte is reduced while the circulation performance is ensured, and the effects of reducing the cost and prolonging the service life are realized.
In one embodiment, as shown in fig. 7, the bare cell 2 includes a plurality of positive electrode plates 21 and negative electrode plates 22 stacked on each other, a separator 23 is disposed between the adjacent positive electrode plates 21 and negative electrode plates 22, and the separator 23 extends into a groove 32 in the bare cell support 3.
For example, when the battery is a square battery cell group, in order to facilitate improvement of the grouping ratio, the side of the casing 1 with the explosion-proof valve 11 is positioned at the bottom, under the action of gravity, electrolyte is concentrated in the groove 32 of the bare cell support 3, and by making the diaphragm 23 on one side of the bare cell 2 extend outwards and making the extension part extend into the groove 32, the electrolyte in the groove 32 can be adsorbed to the bare cell 2 through the capillary capacity of the diaphragm 23, so that the cycle performance in the operation process of the square battery cell is further improved.
Further, when the positive electrode sheet 21 and the negative electrode sheet 22 in the bare cell 2 are laminated, the coating of the separator 23 between the positive electrode sheet 21 and the negative electrode sheet 22 on one side is larger, the separator 23 extends to the outside of the lamination area, a plurality of extended separators 23 are adhered together through hot melting to form a liquid absorbing layer, when the bare cell 2 and the bare cell support 3 are assembled, the liquid absorbing layer is arranged in the groove 32 of the bare cell support 3, and the electrolyte in the groove 32 is absorbed to the bare cell 2 to participate in circulation by utilizing the capillary capacity of the liquid absorbing layer.
The separator is a separator material provided between the positive electrode and the negative electrode, and is capable of separating the positive electrode from the negative electrode, preventing electrons in the battery from freely passing therethrough, and allowing ions of the electrolyte to freely pass between the positive electrode and the negative electrode. The separator 23 is a PE (polyethylene) film or a PP (polypropylene) film, wherein the PE film and the PP film can be single-layer or multi-layer, and have good capillary action, and can absorb the electrolyte in the groove 32 into the bare cell 2 to participate in circulation, so that the circulation performance of the battery can be ensured under the condition that the electrolyte is reduced after the battery is operated for a period of time, thereby prolonging the service life. In one embodiment, the battery further comprises a protective film 4, and the protective film 4 is coated on the outside of the bare cell 2 and the bare cell bracket 3.
The outside cladding one deck protection film 4 at naked electric core 2 and naked electric core support 3 can play protection and insulating effect to naked electric core 2, simultaneously, can make naked electric core 2 and naked electric core support 3 form a whole, improves the stability of structure to reduce the income shell technology degree of difficulty.
Illustratively, the protective film 4 is a Mylar film, which is a polyester polymer, and has good toughness and insulation performance, and can provide good protection and insulation for the bare cell.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (10)
1. The utility model provides a naked electric core support for set up in the battery, the battery includes casing (1) and naked electric core (2), be provided with explosion-proof valve (11) on the lateral wall of casing (1), naked electric core (2) with be provided with the clearance between the lateral wall in casing (1), its characterized in that, naked electric core support (3) set up in the clearance, naked electric core support (3) include support body (31), be equipped with recess (32) on support body (31), support body (31) with the size phase-match in clearance, works as naked electric core support (3) install in casing (1), the opening orientation of recess (32) naked electric core (2).
2. The bare cell holder according to claim 1, characterized in that the recess (32) is provided at the bottom with a vent hole (33), the position of the vent hole (33) corresponding to the position of the explosion-proof valve (11) when the bare cell holder (3) is mounted into the housing (1).
3. The bare cell holder according to claim 1, wherein the longitudinal cross-sectional shape of the recess (32) comprises a circular arc shape, a conical shape or a rectangular shape.
4. Bare cell holder according to claim 1, characterized in that the bottom of the holder body (31) is provided with a support structure.
5. The bare cell support according to claim 4, wherein the support structure comprises a plurality of bar-shaped legs (34) arranged parallel to each other.
6. The bare cell holder according to claim 5, wherein the longitudinal cross-sectional shape of the bar-shaped legs (34) comprises a circular arc shape or a rectangular shape.
7. The bare cell support according to claim 5, wherein a plurality of reinforcing ribs (35) are further provided at the bottom of the support body (31), and the plurality of reinforcing ribs (35) are parallel to each other and are disposed to cross each other with the bar-shaped support legs (34).
8. A battery, characterized by comprising a bare cell support (3), a bare cell (2) and a shell (1) according to any one of claims 1-7, wherein an explosion-proof valve (11) is arranged on the side wall of the shell (1), the bare cell support (3) and the bare cell (2) are both positioned in the shell (1), the bare cell support (3) is arranged below the bare cell (2), and the bottom of the bare cell support (3) is abutted with the side wall in the shell (1).
9. The battery according to claim 8, characterized in that the bare cell (2) comprises a plurality of positive plates (21) and negative plates (22) stacked on each other, a separator (23) is provided between adjacent positive plates (21) and negative plates (22), and the separator (23) extends into a groove (32) in the bare cell holder (3).
10. The battery according to claim 9, further comprising a protective film (4), wherein the protective film (4) is wrapped outside the bare cell (2) and the bare cell holder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495842.3U CN219642962U (en) | 2023-03-13 | 2023-03-13 | Bare cell bracket and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320495842.3U CN219642962U (en) | 2023-03-13 | 2023-03-13 | Bare cell bracket and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219642962U true CN219642962U (en) | 2023-09-05 |
Family
ID=87820424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320495842.3U Active CN219642962U (en) | 2023-03-13 | 2023-03-13 | Bare cell bracket and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219642962U (en) |
-
2023
- 2023-03-13 CN CN202320495842.3U patent/CN219642962U/en active Active
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