CN215731923U - Battery shell and power battery - Google Patents
Battery shell and power battery Download PDFInfo
- Publication number
- CN215731923U CN215731923U CN202121497708.4U CN202121497708U CN215731923U CN 215731923 U CN215731923 U CN 215731923U CN 202121497708 U CN202121497708 U CN 202121497708U CN 215731923 U CN215731923 U CN 215731923U
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- insulating
- battery
- accommodating cavity
- shell
- battery case
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- 239000003063 flame retardant Substances 0.000 claims abstract description 26
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 230000002265 prevention Effects 0.000 description 9
- 230000007547 defect Effects 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of power batteries, and particularly discloses a battery shell and a power battery, which comprise: the shell comprises a shell body, wherein an accommodating cavity is formed in the shell body; and the insulating fireproof cover is attached to the inner wall of the accommodating cavity and used for providing insulating protection and flame-retardant protection for the shell body. The battery shell and the power battery provided by the utility model can effectively reduce the risks of short circuit and heating fire in the battery shell, and have higher safety performance.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a battery shell and a power battery.
Background
Generally, a power battery comprises a battery shell with an opening at one end, a top cover plate for sealing the opening of the battery shell, and a bare cell located in a closed space formed by the battery shell and the top cover plate. The conventional battery case is mostly made of aluminum material, and in order to prevent the battery case from being corroded, the battery case is usually conducted with a positive electrode or a negative electrode, that is, the battery case is charged.
The bare cell is easy to be scratched and other surface defects due to factors such as collision and the like before being arranged in the closed space, after the bare cell with the surface defects is arranged in the battery shell, the defect position can be contacted with the battery shell, when the bare cell is charged and discharged, internal short circuit is easy to be caused, even accidents such as smoking and firing are caused, and once the fire accident happens, no fireproof material is arranged in the battery shell, so that the safety of the product is greatly reduced,
therefore, there is a need for an improved battery case to solve the problem of internal short circuit accidents that easily occur when it is in contact with a bare cell having surface defects.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
One object of the present invention is to provide a battery case and a power battery, which can effectively reduce the risks of short circuit and fire caused by heating inside the battery case, and have high safety performance.
To achieve the above object, in one aspect, the present invention provides a battery case comprising:
the shell comprises a shell body, wherein an accommodating cavity is formed in the shell body;
and the insulating fireproof cover is attached to the inner wall of the accommodating cavity and used for providing insulating protection and flame-retardant protection for the shell body.
Optionally, the housing body is provided with an opening for communicating the accommodating cavity with an external space;
the inner wall of the accommodating cavity comprises a welding area close to the opening and a protection area far away from the opening;
only the protected area is covered by the insulating fire protection covering.
Optionally, the width of the welding area is 0.1 mm-5 mm.
Optionally, the insulating and fire-protecting cover comprises an insulating layer for providing insulating protection to the housing body and a fire-protecting layer for providing fire-retardant protection to the housing body:
the insulating layer is attached to the inner wall of the accommodating cavity, and the fireproof layer is positioned on one side, away from the inner wall of the accommodating cavity, of the insulating layer;
or,
the fireproof layer is attached to the inner wall of the accommodating cavity, and the insulating layer is located on one side, away from the inner wall of the accommodating cavity, of the fireproof layer.
Optionally, the insulating layer and the fireproof layer are both formed by curing through a spraying or coating process.
Optionally, the thicknesses of the insulating layer and the fireproof layer are both 1 μm to 1 mm.
Optionally, the insulating layer comprises at least one of acrylic resin, epoxy resin, polyurethane and alumina;
the fire-proof layer includes at least one of acrylic type resin, epoxy resin, urethane, rubber, carbonate, borate, and alumina.
Optionally, the insulating fireproof cover is fixedly arranged on the inner wall of the accommodating cavity through an anodic oxidation process.
Optionally, the insulating fireproof cover is an aluminum oxide film.
Optionally, the thickness of the insulating fireproof cover is 20 μm to 200 μm.
On the other hand, a power battery is provided, which includes any one of the battery cases, a top cover plate for sealing the opening of the battery case, and a bare cell located in a sealed space formed by the battery case and the top cover plate.
The utility model has the beneficial effects that: the utility model provides a battery case and power battery, after coating insulating fire prevention covering on casing body's inner wall, if surface defect appears in naked electric core and with battery case contact, with naked electric core direct contact not be the casing body of aluminium system, but insulating fire prevention covering, can play insulating function in the insulating fire prevention covering, the electric conductance between isolated naked electric core and the casing body is led to, and then avoids taking place the condition of short circuit between casing body and the naked electric core. If naked electric core takes place the accident of catching a fire in the holding intracavity, insulating fire prevention covering also can tolerate high temperature and toast, plays fire-retardant effect, prevents stretching of intensity of a fire. Therefore, the battery shell provided by the utility model can effectively reduce the risks of short circuit and heating and firing in the battery shell, and has higher safety performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a battery case provided in embodiment 1;
fig. 2 is a schematic cross-sectional view of a battery case provided in example 1;
fig. 3 is a schematic cross-sectional view of a battery case provided in example 2.
In the figure:
1. a housing body; 101. an accommodating cavity; 102. an opening; 103. a protected area; 104. a welding area;
2. an insulating fire-resistant covering; 201. an insulating layer; 202. and a fire-proof layer.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The utility model provides a battery shell and a power battery with the battery shell. It should be noted that the power battery of the utility model can be used for vehicles such as new energy automobile batteries and the like, and can also be used for consumer electronic products such as mobile phone batteries and the like.
Specifically, in this embodiment, take the power battery that the battery case is used for new energy automobile as an example, the power battery includes battery case, lamina tecti and naked electric core. The battery shell is internally provided with an accommodating cavity, and one surface of the battery shell is provided with an opening which communicates the accommodating cavity to the external space. The top cover plate is used for being mounted to the opening and covering the opening so as to be matched with the battery shell to enclose and form a closed space for containing the naked battery core.
Next, referring to the drawings, various embodiments of the battery case of the present invention will be described, such as examples 1 to 2, the battery case in each of the following examples can be applied to the power battery as described above.
Example 1
As shown in fig. 1 and 2, a battery case according to embodiment 1 of the present invention is described, which includes a case body 1 and an insulating fireproof cover 2. The inside of casing body 1 is equipped with holding chamber 101. The insulating fireproof cover 2 is attached to the inner wall of the accommodating cavity 101 and used for providing insulating protection and flame retardant protection for the shell body 1.
In this embodiment, the insulating and fireproof cover 2 is a layered structure, that is, it includes an insulating layer 201 for providing insulating protection to the housing body 1 and a fireproof layer 202 for providing flame retardant protection to the housing body 1.
It can be understood that, after insulating fire prevention covering 2 coats on casing body 1's inner wall, if naked electric core surface defect appears and with the battery case contact, with naked electric core direct contact not be the casing body 1 of aluminium system, but insulating fire prevention covering 2, insulating layer 201 in insulating fire prevention covering 2 can play insulating function, and the electric conductance between isolated naked electric core and casing body 1 leads to, and then avoids taking place the condition of short circuit between casing body 1 and the naked electric core. If naked electric core takes place the accident of catching a fire in holding chamber 101, flame retardant coating 202 in insulating fireproof cover 2 also can tolerate high temperature and toast, plays fire-retardant effect, prevents stretching of the intensity of a fire. Therefore, the battery shell provided by the utility model can effectively reduce the risks of short circuit and heating and firing in the battery shell, and has higher safety performance.
It should be noted that the stacking order between the insulating layer 201 and the fire-proof layer 202 is changeable, that is, in this embodiment, the insulating layer 201 is attached to the inner wall of the accommodating chamber 101, the fire-proof layer 202 is located on the side of the insulating layer 201 away from the inner wall of the accommodating chamber 101, in some other embodiments, the fire-proof layer is attached to the inner wall of the accommodating chamber, and the insulating layer is located on the side of the fire-proof layer away from the inner wall of the accommodating chamber, and both stacking orders are possible.
In this embodiment, the insulating layer 201 is a mixture of a polymer material (for example, an acrylic resin, an epoxy resin, or a urethane), an inorganic material (for example, alumina), and a solvent (for example, water); the insulating layer 201 is a mixture of a high molecular material (e.g., acrylic type resin, epoxy resin, urethane, rubber, etc.), an inorganic material (e.g., carbonate, borate, alumina, etc.), and a solvent (e.g., water, etc.). The insulating layer 201 and the fireproof layer 202 are coated on the inner side of the shell body 1 through a spraying or coating process, and can be formed after being cured. Optionally, in order to achieve a better insulating and flame-retardant effect, the thicknesses of the insulating layer 201 and the fireproof layer 202 are both 1 μm to 1 mm.
In this embodiment, an opening 102 for communicating the accommodating cavity 101 with an external space is formed on one surface of the housing body 1; the inner wall of the accommodating cavity 101 comprises a welding area 104 close to the opening 102 and a protection area 103 far away from the opening 102; only the protective area 103 is covered by the insulating and fire-protecting cover 2, i.e. the welding area 104 is exposed and its surface is not coated with an insulating and fire-protecting cover.
Further, the welding area 104 extends from the opening 102 toward the accommodating cavity 101, and is a closed-loop belt-shaped structure, and a bandwidth d of the belt-shaped structure is 0.1mm to 5 mm.
It should be noted that, the battery case that this embodiment provided, after putting into holding chamber 101 naked electric core, can put into opening 102 with the lamina tecti, and at this moment, the circumferential surface of lamina tecti then just laminates with banded structure's welding region 104, because welding region 104 does not set up insulating fireproof cover 2, so can directly weld lamina tecti and welding region 104 for the lamina tecti is fixed in casing body 1's opening 102 department. Preferably, the top cover plate and the welding area 104 are fixedly connected by laser welding.
To sum up, compare with prior art, the beneficial effect that this embodiment has is: insulating fireproof cover 2 that the inboard coating of casing body 1 comprises two kinds of functional coating of insulating layer 201 and flame retardant coating 202 for naked electric core is in an insulating fire-retardant holding chamber 101, thereby reduces the inside short circuit of battery case and the risk of being heated and catching fire, has higher security performance.
Example 2
As shown in fig. 3, a battery case according to embodiment 2 of the present invention is described, which includes a case body 1 and an insulating fireproof cover 2. The inside of casing body 1 is equipped with holding chamber 101. The insulating fireproof cover 2 is attached to the inner wall of the accommodating cavity 101 and used for providing insulating protection and flame retardant protection for the shell body 1.
It can be understood that, after the insulating fireproof cover 2 is arranged on the inner wall of the shell body 1, if a bare cell has surface defects and is in contact with the battery shell, the bare cell is in direct contact with the shell body 1, which is not made of aluminum, but is the insulating fireproof cover 2, and the alumina film has good insulating property and excellent flame retardant property, so that better insulating flame retardant protection can be provided for the shell body 1, electric conduction between the bare cell and the shell body 1 is isolated, and the condition of short circuit between the shell body 1 and the bare cell is further avoided; if naked electric core takes place the accident of starting a fire in holding chamber 101, insulating fire prevention covering 2 can also tolerate high temperature and toast, plays flame retardant efficiency, prevents stretching of the intensity of a fire. Therefore, the battery shell provided by the utility model can effectively reduce the risks of short circuit and heating and firing in the battery shell, and has higher safety performance.
In this embodiment, the insulating fireproof cover 2 is an aluminum oxide film, and the insulating fireproof cover 2 is fixedly disposed on the inner wall of the accommodating cavity 101 through an anodic oxidation process. The electrochemical reaction is carried out by using the casing body 1 as an anode, and the oxidation reaction is carried out on the inner side of the casing body 1 by controlling the reaction position, the reaction product is alumina powder, and the alumina powder is connected to the inner wall of the casing body 1 to form a film, so that the alumina film attached to the inner wall of the casing body 1 can be obtained. It should be noted that the alumina film has good insulating property and excellent flame retardant property, so that it can provide better insulating flame retardant protection for the housing body 1.
Of course, in some other embodiments, the insulating fireproof cover 2 may also be another insulating fireproof substance fixed on the inner wall of the accommodating cavity 101 by other processes. This embodiment is not limited to this.
Optionally, in order to achieve a better insulating and flame-retardant effect, the thickness of the insulating and fireproof covering 2 is 20 μm to 200 μm.
In this embodiment, an opening 102 for communicating the accommodating cavity 101 with an external space is formed on one surface of the housing body 1; the inner wall of the accommodating cavity 101 comprises a welding area 104 close to the opening 102 and a protection area 103 far away from the opening 102; only the protective area 103 is covered by the insulating and fire-protecting cover 2, i.e. the welding area 104 is exposed and its surface is not covered by an insulating and fire-protecting cover.
Further, the welding area 104 extends from the opening 102 toward the accommodating cavity 101, and is a closed-loop belt-shaped structure, and a bandwidth d of the belt-shaped structure is 0.1mm to 5 mm.
It should be noted that, the battery case that this embodiment provided, after putting into holding chamber 101 naked electric core, can put into opening 102 with the lamina tecti, and at this moment, the circumferential surface of lamina tecti then just laminates with banded structure's welding region 104, because welding region 104 does not set up insulating fireproof cover 2, so can directly weld lamina tecti and welding region 104 for the lamina tecti is fixed in casing body 1's opening 102 department. Preferably, the top cover plate and the welding area 104 are fixedly connected by laser welding.
To sum up, compare with prior art, the beneficial effect that this embodiment has is: form insulating fire-retardant aluminium oxide film as insulating fire prevention covering 2 in casing body 1's inboard through anodic oxidation technology for naked electric core is in an insulating fire-retardant holding chamber 101, thereby reduces the inside short circuit of battery case and the risk of being heated and catching fire, has higher security performance.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A battery case, comprising:
the shell comprises a shell body, wherein an accommodating cavity is formed in the shell body;
and the insulating fireproof cover is attached to the inner wall of the accommodating cavity and used for providing insulating protection and flame-retardant protection for the shell body.
2. The battery case according to claim 1, wherein the case body is provided with an opening communicating the accommodating chamber to an external space;
the inner wall of the accommodating cavity comprises a welding area close to the opening and a protection area far away from the opening;
only the protected area is covered by the insulating fire protection covering.
3. The battery case according to claim 2, wherein the width of the welding region is 0.1mm to 5 mm.
4. The battery case of claim 1, wherein the insulating flame retardant covering comprises an insulating layer for providing insulating protection to the case body and a flame retardant layer for providing flame retardant protection to the case body:
the insulating layer is attached to the inner wall of the accommodating cavity, and the fireproof layer is positioned on one side, away from the inner wall of the accommodating cavity, of the insulating layer;
or,
the fireproof layer is attached to the inner wall of the accommodating cavity, and the insulating layer is located on one side, away from the inner wall of the accommodating cavity, of the fireproof layer.
5. The battery case according to claim 4, wherein the insulating layer and the fire-retardant layer are each cured by a spraying or coating process.
6. The battery case according to claim 4, wherein the insulating layer and the flame-retardant layer each have a thickness of 1 μm to 1 mm.
7. The battery case according to claim 1, wherein the insulating fireproof cover is fixedly arranged on the inner wall of the accommodating cavity through an anodic oxidation process.
8. The battery case of claim 7, wherein the insulating fire-resistant covering is an aluminum oxide film.
9. The battery case according to claim 7, wherein the insulating fireproof cover has a thickness of 20 to 200 μm.
10. A power battery, which is characterized by comprising the battery shell as claimed in any one of claims 1 to 9, a top cover plate for sealing an opening of the battery shell, and a bare cell located in a closed space formed by the battery shell and the top cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121497708.4U CN215731923U (en) | 2021-07-01 | 2021-07-01 | Battery shell and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121497708.4U CN215731923U (en) | 2021-07-01 | 2021-07-01 | Battery shell and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215731923U true CN215731923U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121497708.4U Active CN215731923U (en) | 2021-07-01 | 2021-07-01 | Battery shell and power battery |
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|---|---|
| CN (1) | CN215731923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663359A (en) * | 2022-09-23 | 2023-01-31 | 三一红象电池有限公司 | Battery manufacturing method and battery |
-
2021
- 2021-07-01 CN CN202121497708.4U patent/CN215731923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663359A (en) * | 2022-09-23 | 2023-01-31 | 三一红象电池有限公司 | Battery manufacturing method and battery |
| CN115663359B (en) * | 2022-09-23 | 2023-06-23 | 三一红象电池有限公司 | Battery manufacturing method and battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220308 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 523795 No.9 Jiayuan Road, Xiangshan Industrial Park, songmushan village, Dalang Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: Jiangsu Tafel Power System Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |