CN220341435U - Battery shell and battery - Google Patents
Battery shell and battery Download PDFInfo
- Publication number
- CN220341435U CN220341435U CN202321724620.0U CN202321724620U CN220341435U CN 220341435 U CN220341435 U CN 220341435U CN 202321724620 U CN202321724620 U CN 202321724620U CN 220341435 U CN220341435 U CN 220341435U
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- Prior art keywords
- battery
- pressure release
- release mechanism
- shell body
- shell
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- 239000007788 liquid Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 15
- 238000007789 sealing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 238000004880 explosion Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009413 insulation 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 relates to the technical field of batteries, and discloses a battery shell and a battery. The battery shell comprises a shell body and a pressure relief structure, wherein one of two end faces of the shell body is in an opening shape; the pressure release mechanism is arranged on the side wall of the shell body. The battery shell is provided with the pressure release mechanism on the side wall of the shell body, so that the size of the pressure release mechanism can be effectively increased, and when the battery is in thermal runaway, the pressure is effectively and rapidly released through the pressure release mechanism, and the damage to the battery and the battery module due to insufficient size of the pressure release mechanism is avoided; meanwhile, the pressure release mechanism is arranged on the side wall of the shell, the distance from any one of the two ends of the battery to the pressure release mechanism is reduced compared with the distance from one end of the battery to the end face of the other end of the battery, so that the pressure release path is shortened, hot air can be discharged out of the shell in time, and the safety of the battery is improved. The pressure release mechanism has moderate height and width, and ensures the pressure release effect and simultaneously gives consideration to the strength of the shell.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery shell and a battery.
Background
The cylindrical battery comprises a shell, a plastic on the pole group, a lower plastic, a pole column, a sealing ring, an anode connecting sheet, a cathode cover plate, a sealing nail and other parts, and a pressure relief structure is further arranged on the cylindrical battery. The pressure release mechanism of the cylindrical battery in the prior art is arranged on the end face of the cylindrical battery, and because the cylindrical battery is of a slim structure, the path of gas in the battery to the pressure release mechanism is too long, and because the area of the end face of the cylindrical battery is small, the size of the pressure release mechanism is also limited, and the gas cannot be discharged in time to cause explosion when the battery is in thermal runaway; and the pressure release mechanism and the liquid injection hole are arranged in a coplanar manner, so that the risk of electrolytic corrosion of the pressure release mechanism exists, and the performance of the pressure release mechanism is influenced.
Disclosure of Invention
In view of the above, the present utility model provides a battery case and a battery, so as to solve the problems of long pressure release path and small size of the pressure release mechanism caused by the pressure release mechanism of the battery with the existing structure being disposed on the end face of the battery.
In a first aspect, the utility model provides a battery case, which is characterized by comprising a case body and a pressure relief structure, wherein one of two end surfaces of the case body is in an opening shape; the pressure release mechanism is arranged on the side wall of the shell body; the ratio of the height of the pressure release mechanism to the height of the shell body is a, and the ratio of the circumferential width of the pressure release mechanism to the circumferential length of the shell body is b, wherein a is more than or equal to 0.5 and less than or equal to 0.8,0.25, and b is more than or equal to 0.5.
The battery shell with the structure is characterized in that the pressure release mechanism is arranged on the side wall of the shell body, the size of the pressure release mechanism can be selected according to the pressure release requirement due to the large area of the side wall of the shell body, compared with the pressure release mechanism arranged on the end face of a battery, the size of the pressure release mechanism can be effectively increased, and when the battery is out of control, the pressure is effectively and rapidly released through the pressure release mechanism, so that the battery and the battery module are prevented from being damaged due to insufficient size of the pressure release mechanism; meanwhile, the pressure release mechanism is arranged on the side wall of the shell, the distance from any one of the two ends of the battery to the pressure release mechanism is reduced compared with the distance from one end of the battery to the end face of the other end of the battery, so that the pressure release path is shortened, hot air can be discharged out of the shell in time, and the safety of the battery is improved. As shown in FIG. 1, the height of the pressure release mechanism is H, the width of the pressure release mechanism is W, the insufficient pressure release area is caused by the too small height and width of the pressure release mechanism, the insufficient overall strength of the shell is caused by the too large height and width of the pressure release mechanism, the size of the pressure release mechanism is controlled to be more than or equal to 0.5 and less than or equal to 0.8,0.25 and less than or equal to 0.5, the height and the width of the pressure release mechanism are moderate, and the strength of the shell is considered while the pressure release effect is ensured. The width of the pressure release mechanism is more than or equal to 0.25 and less than or equal to 0.5, so that the pressure release mechanism is difficult to process and manufacture when the width of the pressure release mechanism is too wide, and meanwhile, the shell can be ensured to have enough strength to support and contain the pole group.
In an alternative embodiment, a=0.6 and b=0.375, and the height and width of the pressure relief mechanism meet this condition with good pressure relief and a stronger housing.
In an alternative embodiment, the pressure release mechanism is an explosion-proof notch arranged on the outer side wall of the shell body, and the pressure release mechanism is simple in structure and convenient to manufacture.
In an alternative embodiment, the thickness of the shell body at the explosion-proof notch is t, and 35 μm.ltoreq.t.ltoreq.95 μm. The thickness of the shell body at the explosion-proof notch is moderate, so that the explosion-proof notch keeps moderate opening pressure, and meanwhile, the strength of the shell body can be ensured; in addition, the depth of the notch is moderate, and the processing and the manufacturing of the explosion-proof notch are convenient.
In an alternative embodiment, t=65μm, the thickness of the shell body at the explosion-proof notch is moderate, so that the moderate and stable opening pressure can be ensured, and the explosion-proof notch is convenient to process and manufacture.
In an alternative embodiment, the explosion vent is C-shaped, O-shaped, V-shaped, double V-shaped, or X-shaped.
The explosion-proof nick is C-shaped. The thickness of the shell body in the area between the two ends of the C-shaped area is larger than that of the explosion-proof notch, the area is defined as a fixed side, in the pressure release process, the shell body in the explosion-proof notch area is broken through by hot air, and the broken shell body is turned over along the fixed side, so that directional opening is realized, and the safety in pressure release is improved; and meanwhile, the shell body in the explosion area after being opened is connected with the shell body through the fixed side, and the explosion area cannot fly out from the shell body, so that the safety in the pressure relief process is improved.
In a second aspect, the present utility model also provides a battery comprising a battery housing of any one of the above, a pole group, a positive cover plate, and a negative cover plate; wherein, the pole group is arranged in the shell body; the positive electrode cover plate is arranged at the top of the shell body, and is provided with a mounting hole; the negative electrode cover plate is arranged at the bottom of the shell body, and a liquid injection hole is formed in the negative electrode cover plate.
The pressure release mechanism of the battery with the structure is arranged on the side wall of the shell body, so that the size of the pressure release mechanism can be effectively increased, and when the battery is in thermal runaway, the pressure is effectively and rapidly released through the pressure release mechanism, and the battery is prevented from being damaged due to insufficient size of the pressure release mechanism; meanwhile, the pressure release mechanism is arranged on the side wall of the shell so as to reduce the pressure release path, so that hot air can be discharged out of the shell in time, and the safety of the battery is improved. The pressure release mechanism has moderate height and width, and ensures the pressure release effect and simultaneously gives consideration to the strength of the shell.
In an alternative embodiment, the positive electrode cover plate is integrally provided with the case body, the bottom end surface of the case body is in an opening shape, and the opening side of the case body is welded to the outer edge of the negative electrode cover plate. The shell body and the negative electrode cover plate are directly welded through the top, and compared with the prior art, the welding efficiency and the welding performance can be improved by welding the negative electrode cover plate on the inner wall of the shell body through peripheral welding.
In an alternative embodiment, the outer edge of the negative electrode cover plate is provided with a positioning step part, and the shell body is welded on the positioning step part. When the shell body and the negative electrode cover plate are welded, the inner side wall of the shell body can be welded on the vertical surface of the positioning step part, so that the shell body is initially positioned, and the bottom surface of the shell body is welded and fixed on the horizontal surface of the positioning step part.
In an alternative embodiment, the device further comprises a pole, an upper plastic and a sealing piece, wherein the pole is arranged on the positive electrode cover plate outside the mounting hole, and the upper plastic and the sealing piece are integrally arranged. The number of battery parts is reduced, the battery assembly process is simplified, and the assembly efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a battery according to an embodiment of the present utility model;
FIG. 2 is a top view of a battery according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 2;
fig. 4 is a top view of a negative electrode cover plate in a battery according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view taken along the B-B direction of FIG. 4;
fig. 6 is a schematic perspective view of a negative electrode cover plate in a battery according to an embodiment of the utility model.
Reference numerals illustrate:
1. a housing body; 2. a pressure release mechanism; 3. a pole group; 4. a negative electrode cover plate; 41. a liquid injection hole; 42. positioning the step part; 5. a pole; 6. sealing the insulating member; 61. applying plastic; 62. a seal; 7. lower plastic; 8. a positive electrode connecting sheet; 9. a negative electrode connecting sheet; 10. and sealing the cover plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The existing cylindrical battery is of a slim structure, the height of the cylindrical battery is larger than the diameter of the cylindrical battery, the end surface area of the cylindrical battery is far smaller than the side area of the cylindrical battery, and the pressure release structure is arranged on the end surface of the cylindrical battery, so that the size of the pressure release mechanism 2 is smaller, and when the battery is out of control, the pressure release mechanism 2 cannot effectively and rapidly discharge heat in the shell; and pressure release mechanism 2 sets up the terminal surface at the cylinder battery, and when the extremely group 3 of keeping away from pressure release mechanism 2 one side takes place thermal runaway, the steam transfer is longer to pressure release mechanism 2's distance, leads to the unable timely discharge of steam, leads to the explosion probability of battery to increase.
Embodiments of the present utility model are described below with reference to fig. 1 to 6.
According to an embodiment of the present utility model, in one aspect, there is provided a battery case including a case body 1 and a pressure release structure, wherein one of two end surfaces of the case body 1 is in an opening shape; the pressure release mechanism 2 is arranged on the side wall of the shell body 1; the ratio of the height of the pressure release mechanism 2 to the height of the shell body 1 is a, and the ratio of the circumferential width of the pressure release mechanism 2 to the circumferential length of the shell body 1 is b, wherein a is more than or equal to 0.5 and less than or equal to 0.8,0.25, and b is more than or equal to 0.5.
According to the battery shell with the structure, the pressure release mechanism 2 is arranged on the side wall of the shell body 1, the size of the pressure release mechanism 2 can be selected according to the pressure release requirement because the area of the side wall of the shell body 1 is large, compared with the case that the pressure release mechanism 2 is arranged on the end face of a battery, the size of the pressure release mechanism 2 can be effectively increased, and when the battery is in thermal runaway, the pressure is effectively and rapidly released through the pressure release mechanism 2, so that the battery and the battery module are prevented from being damaged due to insufficient size of the pressure release mechanism 2; meanwhile, the pressure release mechanism 2 is arranged on the side wall of the shell, the distance from any one of the two ends of the battery to the pressure release mechanism 2 is reduced compared with the distance from one end of the battery to the end face of the other end of the battery, so that the pressure release path is shortened, hot air can be discharged out of the shell in time, and the safety of the battery is improved. As shown in fig. 1, the height of the pressure release mechanism 2 is H, the width is W, the insufficient pressure release area is caused by the too small height and width of the pressure release mechanism 2, the insufficient overall strength of the shell is caused by the too large height and width of the pressure release mechanism 2, the size of the pressure release mechanism 2 is controlled to be more than or equal to 0.5 and less than or equal to 0.8,0.25 and less than or equal to 0.5, the height and width of the pressure release mechanism 2 are moderate, and the strength of the shell is considered while the pressure release effect is ensured. The width of the pressure release mechanism 2 is more than or equal to 0.25 and less than or equal to 0.5, so that the pressure release mechanism 2 is difficult to process and manufacture when the width of the pressure release mechanism 2 is too wide, and meanwhile, the shell can be ensured to have enough strength to support and contain the pole group 3.
Alternatively, in one embodiment, the battery is a cylindrical battery.
In other embodiments, the battery may also be a square-case battery.
Preferably, a=0.6 and b=0.375, and the pressure relief mechanism 2 has a good pressure relief effect when the height and width meet this condition, while the housing strength is high.
As shown in fig. 1, optionally, the pressure release mechanism 2 is an explosion-proof notch arranged on the outer side wall of the shell body 1, and the pressure release mechanism is simple and convenient to manufacture.
The explosion-proof nick is located the casing body 1 thickness too big then explosion-proof nick's opening pressure is great, leads to the pressure release difficulty, and explosion-proof nick is located the casing body 1 thickness too little, and explosion-proof nick degree of depth is deeper promptly, leads to explosion-proof nick difficult to process, and casing intensity reduces. The thickness of the shell body 1 at the explosion-proof notch is t which is more than or equal to 35 mu m and less than or equal to 95 mu m, and the thickness of the shell body 1 at the explosion-proof notch is moderate, so that the explosion-proof notch keeps moderate opening pressure, and meanwhile, the strength of the shell body 1 can be ensured; in addition, the depth of the notch is moderate, and the processing and the manufacturing of the explosion-proof notch are convenient.
Preferably, in one embodiment, t=65 μm, the thickness of the shell body 1 at the explosion-proof notch is moderate, so that the moderate and stable opening pressure can be ensured, and the explosion-proof notch can be manufactured conveniently.
Alternatively, as shown in fig. 1, the explosion-proof score is C-shaped. The thickness of the shell body 1 in the area between the two ends of the C-shaped area is larger than that of the explosion-proof notch, the area is defined as a fixed side, in the pressure release process, the shell body 1 in the explosion-proof notch area is broken through by hot air, and the broken shell body 1 is turned over along the fixed side, so that directional opening is realized, and the safety in pressure release is improved; and meanwhile, the shell body 1 in the explosion area after being opened is connected with the shell body 1 through the fixed side, and the explosion area cannot fly out from the shell body 1, so that the safety in the pressure relief process is improved.
In some embodiments, the anti-explosion score may also be O-shaped, V-shaped, double V-shaped, X-shaped, or the like.
The explosion-proof area of the explosion-proof nick (namely the explosion area of the shell body 1 during pressure relief) is insufficient, so that the pressure relief performance is difficult to ensure, and the safety performance of the battery is influenced; if the explosion-proof area is too large, the explosion-proof nick is difficult to process, and the strength of the shell is reduced. Optionally, in one embodiment, the ratio of the explosion-proof area of the explosion-proof notch area to the surface area of the shell body 1 is c, and c is more than or equal to 0.25 and less than or equal to 0.5, and the explosion-proof area is moderate, so that the shell strength and the pressure relief effect are both achieved.
According to an embodiment of the present utility model, on the other hand, there is also provided a battery including the above-mentioned battery case, a pole group 3, a positive electrode cover plate, and a negative electrode cover plate 4, wherein the pole group 3 is disposed in the case body 1; the positive electrode cover plate is arranged at the top of the shell body 1, and is provided with a mounting hole; the negative electrode cover plate 4 is arranged at the bottom of the shell body 1, and the negative electrode cover plate 4 is provided with a liquid injection hole 41.
The pressure release mechanism 2 on the battery with the structure is arranged on the side wall of the shell body 1, so that the size of the pressure release mechanism 2 can be effectively increased, and when the battery is in thermal runaway, the pressure is effectively and rapidly released through the pressure release mechanism 2, and the condition that the battery is damaged due to insufficient size of the pressure release mechanism 2 is avoided; meanwhile, the pressure release mechanism 2 is arranged on the side wall of the shell so as to reduce the pressure release path, so that hot air can be discharged out of the shell in time, and the safety of the battery is improved. The pressure release mechanism 2 has moderate height and width, and ensures the pressure release effect and simultaneously gives consideration to the strength of the shell.
Alternatively, as shown in fig. 3, the positive electrode cover plate is integrally provided with the case body 1, the bottom end surface of the case body 1 is in an open shape, and the open side of the case body 1 is welded to the outer edge of the negative electrode cover plate 4. The shell body 1 and the negative electrode cover plate 4 are directly welded through the top, and compared with the prior art, the welding efficiency and welding performance can be improved by welding the negative electrode cover plate 4 on the inner wall of the shell body 1 through peripheral welding.
Specifically, in one embodiment, as shown in fig. 3 and 5, the outer edge of the anode cap plate 4 is provided with a positioning step portion 42, and the case body 1 is welded to the positioning step portion 42. When the shell body 1 and the cathode cover plate 4 are welded, the inner side wall of the shell body 1 can be welded on the vertical surface of the positioning step part 42 to perform preliminary positioning on the shell body 1, so that the bottom surface of the shell body 1 is welded and fixed on the horizontal surface of the positioning step part 42.
As shown in fig. 3, the battery further includes a pole 5, an upper plastic 61 and a sealing member 62, where the pole 5 is disposed on the positive cover plate outside the mounting hole, and the upper plastic 61 and the sealing member 62 are integrally disposed to form a sealing insulating member 6, so as to reduce the number of battery parts, simplify the battery assembly process, and improve the assembly efficiency. The pole 5 is riveted on the housing body 1, and the pole 5 includes a body portion, an upper flange and a lower flange, the body portion being located in the mounting hole, the upper flange and the lower flange being respectively provided on an upper side and a lower side of the mounting hole.
Referring to fig. 3, the middle part of the top of the shell body 1 is recessed downwards to form a recessed area, the upper plastic 61 is embedded in the recessed area, and the outer edge of the upper plastic 61 is folded upwards to wrap the upper flange of the pole 5, so that the insulation effect is ensured. The inner side of the upper plastic 61 extends downwards to form a sealing member, and two sides of the sealing member respectively abut against the body part of the pole 5 and the shell body 1 so as to ensure tightness.
Referring to fig. 3, the battery further includes a lower plastic 7, a positive connection tab 8, a negative connection tab 9, and a sealing cover 10.
Wherein, lower plastic 7 cover is established on utmost point post 5 to lower plastic 7 locates the downside of the roof of shell body 1, and lower plastic 7's inboard joint is in the upside of the lower flange of utmost point post 5, in order to fix a position lower plastic 7 through the lower flange.
As shown in fig. 3, a positive electrode tab is provided at the upper part of the electrode group 3, and a negative electrode tab is provided at the lower part of the electrode group 3. The positive electrode connecting sheet 8 is arranged on the upper part of the electrode group 3, and the positive electrode connecting sheet 8 is welded with the positive electrode lug to realize the electric connection between the positive electrode connecting sheet 8 and the electrode group 3. The middle part of the positive electrode connecting sheet 8 is provided with an upward protruding welding part, the bottom of the pole 5 is provided with a groove, the welding part stretches into the groove, and the welding part and the pole 5 are welded outside the pole 5 by penetration welding, so that the positive electrode connecting sheet 8 is electrically connected with the pole 5. Compared with the prior art that the welding gun stretches into the electrode group 3 from the bottom of the shell to weld the positive electrode connecting sheet 8 and the electrode column 5, the structure can conveniently and rapidly weld the electrode column 5 and the positive electrode connecting sheet 8 from outside through penetration welding.
The negative electrode connecting sheet 9 is arranged at the bottom of the electrode group 3 and welded with the negative electrode lugs, and the negative electrode cover plate 4 is arranged outside the negative electrode connecting sheet 9. The middle part of negative pole apron 4 is equipped with concave welded zone, is equipped with annotates liquid hole 41 on the welded zone, is equipped with the hole of stepping down that supplies the electrolyte to pass through on the negative pole connection piece 9. The sealing cover plate 10 is welded to the anode cover plate 4 in the welding zone.
Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.
Claims (10)
1. A battery case, comprising:
the shell comprises a shell body, wherein one of two end faces of the shell body is in an opening shape;
the pressure release mechanism is arranged on the side wall of the shell body; the ratio of the height of the pressure release mechanism to the height of the shell body is a, the ratio of the circumferential width of the pressure release mechanism to the circumferential length of the shell body is b, and a is more than or equal to 0.5 and less than or equal to 0.8,0.25, and b is more than or equal to 0.5.
2. The battery housing of claim 1, wherein a = 0.6 and b = 0.375.
3. The battery case according to claim 1 or 2, wherein the pressure release mechanism is an explosion-proof score provided on an outer side wall of the case body.
4. The battery case according to claim 3, wherein the thickness of the case body at the explosion-proof score is t,35 μm.ltoreq.t.ltoreq.95 μm.
5. The battery case according to claim 4, wherein t = 65 μm.
6. The battery housing of claim 3, wherein the explosion-proof score is C-shaped, O-shaped, V-shaped, double V-shaped, or X-shaped.
7. A battery, comprising:
the battery case of any one of claims 1 to 6;
the pole group is arranged in the shell body;
the positive electrode cover plate is arranged at the top of the shell body and is provided with a mounting hole;
the negative electrode cover plate is arranged at the bottom of the shell body, and a liquid injection hole is formed in the negative electrode cover plate.
8. The battery according to claim 7, wherein the positive electrode cover plate is integrally provided with the case body, a bottom end surface of the case body is in an opening shape, and an opening side of the case body is welded to an outer edge of the negative electrode cover plate.
9. The battery according to claim 8, wherein an outer edge of the negative electrode cap plate is provided with a positioning step portion, and the case body is welded to the positioning step portion.
10. The battery of any one of claims 7 to 9, further comprising a post, an upper plastic and a seal, the post being disposed on the positive cover plate outside the mounting hole, the upper plastic being integrally disposed with the seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724620.0U CN220341435U (en) | 2023-07-03 | 2023-07-03 | Battery shell and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724620.0U CN220341435U (en) | 2023-07-03 | 2023-07-03 | Battery shell and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220341435U true CN220341435U (en) | 2024-01-12 |
Family
ID=89448424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321724620.0U Active CN220341435U (en) | 2023-07-03 | 2023-07-03 | Battery shell and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220341435U (en) |
-
2023
- 2023-07-03 CN CN202321724620.0U patent/CN220341435U/en active Active
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