CN213340525U - Battery aluminum shell, battery shell assembly and battery assembly - Google Patents
Battery aluminum shell, battery shell assembly and battery assembly Download PDFInfo
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- CN213340525U CN213340525U CN202022215708.2U CN202022215708U CN213340525U CN 213340525 U CN213340525 U CN 213340525U CN 202022215708 U CN202022215708 U CN 202022215708U CN 213340525 U CN213340525 U CN 213340525U
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- aluminum
- aluminum shell
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 109
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000013461 design Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920001021 polysulfide Polymers 0.000 claims description 2
- 239000005077 polysulfide Substances 0.000 claims description 2
- 150000008117 polysulfides Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims 1
- 229920002050 silicone resin Polymers 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 27
- 238000002347 injection Methods 0.000 abstract description 26
- 239000007924 injection Substances 0.000 abstract description 26
- 239000003792 electrolyte Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 description 13
- 239000010410 layer Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241001544485 Cordulegastridae Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a battery aluminum hull, battery case subassembly and battery pack. The battery aluminum shell comprises an upper aluminum shell and a lower aluminum shell; the upper aluminum shell is of a hollow structure with openings at the upper end and the lower end, and is provided with a first limiting part and a first contact part; the lower aluminum shell is provided with a second limiting part and a second contact part; the first contact part is provided with a first contact surface, the second contact part is provided with a second contact surface, and the first contact surface and the second contact surface form sealing contact. The battery aluminum shell adopts a split structure, namely, the upper aluminum shell and the lower aluminum shell are in sealing fit, so that the internal space of the single square battery can be enlarged, and the quick liquid injection during the liquid injection is realized; after the electrolyte is statically placed and absorbed (inherent working procedure), complete matching can be realized, and the requirements of the single aluminum shell battery on the height, the strength and the sealing property of the battery aluminum shell can be met.
Description
Technical Field
The utility model relates to a battery field, concretely relates to battery aluminum hull, battery case subassembly and battery pack.
Background
In recent years, one of the main pain points restricting the large-scale popularization and application of new energy automobiles is insufficient endurance mileage. In order to improve the endurance mileage, design and process improvements mainly include increasing the compaction of positive and negative electrode plates, increasing the coating amount of active material per unit area, increasing the length and width of the electrode plates, reducing the thickness of an aluminum shell, using a limit top cover, and the like, so as to further utilize the internal space of the battery and improve the energy density of the single square battery.
However, the high energy density of the single square battery means that a larger amount of electrolyte is needed for liquid retention, and the high-compaction and high-coating-density pole piece is not beneficial to the rapid absorption of the electrolyte; increase pole piece size makes the aluminum hull inner space reduce when pouring into electrolyte, for example, present naked electric core side (width direction) goes out utmost point ear, through the battery design of pin water conservancy diversion to the apron, because the direction of height does not have utmost point ear, the designer increases the pole piece height as far as possible in order to fill the clearance of apron and naked electric core, electrolyte easily gathers near annotating the liquid mouth during notes liquid, hinder electrolyte drainage to battery both sides or bottom, it annotates the liquid volume to be difficult to reach the target fast, lead to annotating the speed control step that liquid process inefficiency even becomes in the whole production link of monomer square battery.
Also, as in the battery pack, vehicle and energy storage device technology (CN110165116A) disclosed by biddi corporation, the width of a single battery will reach 2500mm, and the limited liquid injection port cannot inject the electrolyte into the battery timely and evenly, so that the infiltration absorption speed is reduced, the production efficiency of the liquid injection is reduced, and even the infiltration effect and the battery performance are affected.
Because the efficiency of the liquid injection process is reduced, battery manufacturers generally meet the requirements by increasing the number of liquid injection equipment, so that the equipment cost, the plant construction and other investment are increased; for another example, the liquid injection speed is increased by adopting measures such as a high positive pressure-isobaric breathing type liquid injection process, the standing absorption time is prolonged by adopting measures such as a multistep liquid injection device for increasing a standing station, and the production and manufacturing cost of the square battery is greatly increased by adopting a high pressure-resistant material or increasing the volume and the station of the device.
In the electrolyte injection process, the electrolyte occupies the free space in the battery (process 1), the electrode liquid fills the interlayer gap of the pole piece (process 2) and the electrolyte fills the pore of the main material (process 3) in sequence. Among them, the process 1 is considered to be a step in which the injection resistance is minimum and the time is minimum. The electrolyte injection amount in the electrolyte injection process 1 is increased, so that the electrolyte injection speed can be obviously improved. Fig. 1 shows an aluminum case 1 widely used in a single square battery at present, which is formed by an aluminum case stretching process, in which raw materials are integrally formed by blanking, multi-step stretching, finish-drawing and shearing processes, and the height of the aluminum case cannot be increased or decreased because the aluminum case is shaped after being manufactured. Leading to an electrolyte injection process 1 (electrolyte occupies the free space inside the battery) that cannot be optimized. In addition, as the energy density of the single square battery is continuously increased, the advantage of fast liquid injection speed in the process 1 is reduced, and the challenges of efficiency and yield of the liquid injection process in the production link of the single square battery are more severe.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a battery aluminum shell, battery case subassembly and battery pack. The battery aluminum shell is composed of an upper aluminum shell and a lower aluminum shell which are split and assembled, and the upper aluminum shell and the lower aluminum shell are in sealed contact.
Specifically, the utility model provides a battery aluminum shell, which comprises an upper aluminum shell and a lower aluminum shell;
the upper aluminum shell is of a hollow structure with openings at the upper end and the lower end, and is provided with a first limiting part and a first contact part;
the lower aluminum shell is provided with a second limiting part and a second contact part;
the first contact part is provided with a first contact surface, the second contact part is provided with a second contact surface, and the first contact surface and the second contact surface form sealing contact.
As one embodiment, the first contact portion is recessed to form an upper insertion groove, and the inner wall of the notch of the upper insertion groove forms the first contact surface;
the second contact part is inwards concave to form a lower inserting groove, and the inner wall of the notch of the lower inserting groove forms the second contact surface.
Further, a sealing layer is arranged between the first limiting part and the second contact part and between the second limiting part and the first contact part.
When the upper and lower aluminum hull equipment, the regional breach region that is between first spacing portion and the second contact site, between spacing portion of second and the first contact site of definition, the regional area of this breach can be adjusted according to two contact surface sealing contact area size to accommodation space size when the aluminum hull equipment about realizing is adjusted.
Furthermore, the sealing layer is made of any one of polyimide, polysulfide rubber, chloroprene rubber, polyurethane, butyl rubber, epoxy resin, phenolic resin or organic silicon resin.
In another embodiment, the first stopper portion abuts against the second contact portion, and the second stopper portion abuts against the first contact portion.
When the first limiting part is abutted with the second contact part and the second limiting part is abutted with the first contact part, the sum of the wall thicknesses of the two contact parts is 90-105% of the design thickness of the aluminum shell of the battery.
At the moment, the upper and lower aluminum shells do not need to be provided with a sealing layer during assembly, and the size of the accommodating space is relatively minimum.
The corresponding contact surfaces of the upper and lower aluminum shells are tightly attached through transition fit or interference fit design. When the breach region was provided with the sealing layer, for the part cooperation between the upper and lower aluminum hull, its assembly supplies and needs to include: in the processes of finish drawing of a conventional aluminum shell semi-finished product, two-step shearing (forming an upper aluminum shell and a lower aluminum shell), structural molding of a first contact part and a second contact part, partial matching assembly, injection molding of a sealing layer and finishing, the sealing layer prevents longitudinal displacement of the upper aluminum shell and the lower aluminum shell, the overall strength of the aluminum shell of the battery is increased, and the air tightness of the aluminum shell of the battery is further improved; and the sealing layer can be removed by simple means such as machinery, hot melting and the like after the battery assembly is subjected to liquid injection and standing soaking procedures, so that conditions are provided for further complete matching.
When a sealing layer is not needed, the upper aluminum shell and the lower aluminum shell are completely matched.
Furthermore, a limiting step surface fixedly connected with the battery cover plate is formed at the top of the upper aluminum shell.
Furthermore, the wall thickness of the first contact part is smaller than that of the first limiting part, the wall thickness of the second contact part is smaller than that of the second limiting part, and the wall thicknesses of the first contact part and the second contact part are 10-90% of the design thickness of the aluminum shell of the battery.
The utility model also provides a battery case subassembly, it includes as aforementioned the battery aluminum hull mentioned, and is used for sealing the battery apron of battery aluminum hull.
Specifically, the battery cover plate is assembled with the upper aluminum shell in a welding manner.
The virtual end surface of the top of the lower aluminum shell can be a plane or an irregular surface. Correspondingly, when the virtual end face is a plane, the external texture is a linear type parallel to the bottom of the aluminum shell, the virtual end face is an irregular face, and the external texture can be oblique lines or waves, diamonds, amorphous shapes and the like.
The virtual end face at the bottom of the upper aluminum shell corresponds to a plane corresponding to the shape of the virtual end face at the top of the lower aluminum shell, or an irregular surface such as a diagonal line, a wave, a diamond, or other amorphous surface.
The contact part is formed by punching, and chamfer finishing is carried out on the top end (the top end is the end part far away from the corresponding limiting part) of the formed contact part, so that the assembly is facilitated, and the fixity of the sealing layer after glue injection is enhanced. The chamfer angle is 30 °, 40 ° or 60 °. In particular, the radius ranges from 0.2 to 1.5mm when rounding.
The utility model also provides a battery pack, it includes the battery case subassembly that the aforesaid mentioned, and the holding in utmost point core in the battery aluminum hull.
Compared with the prior art, the utility model provides a battery aluminum hull, battery case subassembly and battery have following advantage:
the battery aluminum shell adopts a split structure, namely, the upper aluminum shell and the lower aluminum shell are in sealing fit, so that the internal space of the single square battery can be enlarged, and the quick liquid injection during the liquid injection is realized; after the electrolyte is kept stand and absorbed (the inherent procedure), complete matching can be realized, the requirements of the height, the strength and the sealing performance of the single aluminum-shell battery on the aluminum shell of the battery can be met, the liquid injection efficiency of the liquid injection procedure of the single square battery is improved, the liquid injection pressure is reduced, the number of liquid injection equipment is reduced, the liquid injection process is simplified, and the manufacturing complexity is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an integrally formed aluminum shell in the prior art;
fig. 2 is a schematic view of a battery aluminum case structure shown in embodiment 1 of the present invention;
FIG. 3 is one of the schematic cross-sectional views of the aluminum can of the battery shown in FIG. 2;
FIG. 4 is a schematic view showing an assembled state of the upper and lower aluminum cases of the aluminum case of the battery shown in FIG. 2;
fig. 5 is a schematic view of a battery aluminum case structure shown in embodiment 2 of the present invention;
FIG. 6 is a schematic view showing the assembled state of the upper and lower aluminum cases of the aluminum case of the battery shown in FIG. 5;
FIG. 7 is a second schematic cross-sectional view of the upper housing;
fig. 8 is a third schematic sectional view of the upper housing.
Detailed Description
For better understanding and implementation, 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.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. appear, the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 2, the battery aluminum case provided by the present invention includes an upper aluminum case 11 and a lower aluminum case 12, wherein the upper aluminum case 11 is hollow.
As shown in fig. 3-4, the upper aluminum shell 11 includes a first position-limiting portion 111 and a first contact portion 112 with a rectangular cross section, the lower aluminum shell 12 includes a second position-limiting portion 121 and a second contact portion 122, and the cross sections of the aluminum shells are the same; the first contact portion 112 has a first contact surface (not numbered), the second contact portion 122 has a second contact surface (not numbered), and the first contact surface and the second contact surface are attached to form a sealing contact area S; and a gap region Q is formed between the first position-limiting portion 111 and the second contact portion 122, and between the second position-limiting portion 121 and the first contact portion 112, and the gap region Q is provided with a sealing layer (not shown). The area of the sealing contact area S and the area of the clearance area Q are adjustable, when the area of S is increased, the area of the corresponding Q is reduced, and the area of the S and the area of the Q are reasonably distributed to realize the adjustment of the containing space of the battery aluminum shell.
Example 2
Fig. 5-6 are the utility model provides a 2 nd assembly structure of battery aluminum hull, with embodiment 1 difference only lie in, first spacing portion 111 and second contact site 122 butt, spacing portion 121 of second and first contact site 112 butt, the assembly of upper and lower aluminum hull need not to adopt the sealing layer, and the contact is laminated completely to upper and lower aluminum hull this moment, and the sum of two contact site wall thicknesses is 90 ~ 105% of battery aluminum hull design thickness this moment.
The upper shell and the lower shell are in same structure, and the upper shell and the lower shell are in sealing contact in a mode that the upper aluminum shell covers the lower aluminum shell or a mode that the upper aluminum shell is embedded into the lower aluminum shell.
On the basis of the above, fig. 7 and 8 show two other structures of two other upper housings (and/or lower housings).
In conjunction with the illustrations of embodiments 1 and 2, the contact portions provided correspondingly to each of the upper case 11 and the lower case 12 have a regular rectangular structure, but in actual use, the specific shape of the contact portions is not limited thereto. For example, as shown in fig. 7, the bottom end of the first contact portion 112 of the upper housing 11 is tapered, but may also be circular or triangular.
Still alternatively, as shown in fig. 8, the first contact portion 112 of the upper housing 11 is recessed to form an upper insertion groove 1121, and the inner wall of the notch of the upper insertion groove 1121 is formed as the aforementioned first contact surface. The corresponding inward recess of the second contact portion 122 of the lower housing 12 forms a lower mating groove whose notch inner wall forms the aforementioned second contact surface.
The utility model provides an above-mentioned battery aluminum hull adopts split type structure, is promptly by upper and lower aluminum hull seal fit, can increase monomer square battery inner space, annotates liquid fast when realizing annotating the liquid. After electrolyte stood and absorbed (inherent process), can realize cooperating completely, can satisfy height, intensity and the leakproofness requirement of monomer aluminum hull battery to the battery aluminum hull, consequently the utility model discloses the battery pack performance that has this battery aluminum hull that further stops is more excellent.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (10)
1. The battery aluminum shell is characterized by comprising an upper aluminum shell (11) and a lower aluminum shell (12);
wherein the upper aluminum shell (11) is a hollow structure with openings at the upper end and the lower end, and the upper aluminum shell (11) is provided with a first limiting part (111) and a first contact part (112);
the lower aluminum shell (12) is provided with a second limiting part (121) and a second contact part (122);
the first contact portion (112) has a first contact surface, the second contact portion (122) has a second contact surface, and sealing contact is formed between the first contact surface and the second contact surface.
2. The battery aluminum case according to claim 1, wherein the first contact portion (112) is concavely formed with an upper insertion groove (1121), and a notch inner wall of the upper insertion groove (1121) is formed as the first contact surface;
the second contact part (122) is inwards recessed to form a lower insertion groove, and the inner wall of the notch of the lower insertion groove forms the second contact surface.
3. The battery aluminum case according to claim 1 or 2, wherein a sealing layer is provided between the first stopper portion (111) and the second contact portion (122), and between the second stopper portion (121) and the first contact portion (112).
4. The aluminum cell case according to claim 3, wherein the sealing layer is made of any one of polyimide, polysulfide rubber, neoprene rubber, polyurethane, butyl rubber, epoxy resin, phenolic resin or silicone resin.
5. The battery aluminum case according to claim 2, wherein the first stopper portion (111) abuts against the second contact portion (122), and the second stopper portion (121) abuts against the first contact portion (112).
6. The battery aluminum case according to claim 5, wherein when the first limiting part (111) abuts against the second contact part (122) and the second limiting part (121) abuts against the first contact part (112), the sum of the wall thicknesses of the two contact parts is 90-105% of the design thickness of the battery aluminum case.
7. The battery aluminum shell according to claim 6, wherein a limiting step surface for fixedly connecting with a battery cover plate is formed at the top of the upper aluminum shell (11).
8. The battery aluminum case according to any one of claims 4-7, wherein the wall thickness of the first contact portion (112) is smaller than that of the first limiting portion (111), the wall thickness of the second contact portion (122) is smaller than that of the second limiting portion (121), and the wall thicknesses of the first contact portion (112) and the second contact portion (122) are 10-90% of the design thickness of the battery aluminum case.
9. A battery case assembly comprising the aluminum battery case according to any one of claims 1 to 8, and a battery cover plate for sealing the aluminum battery case.
10. A battery assembly comprising the battery housing assembly of claim 9, and a pole piece housed within the battery aluminum can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022215708.2U CN213340525U (en) | 2020-09-30 | 2020-09-30 | Battery aluminum shell, battery shell assembly and battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022215708.2U CN213340525U (en) | 2020-09-30 | 2020-09-30 | Battery aluminum shell, battery shell assembly and battery assembly |
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| Publication Number | Publication Date |
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| CN213340525U true CN213340525U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022215708.2U Active CN213340525U (en) | 2020-09-30 | 2020-09-30 | Battery aluminum shell, battery shell assembly and battery assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675511A (en) * | 2021-07-08 | 2021-11-19 | 惠州锂威新能源科技有限公司 | Shell structure, battery and packaging method thereof |
| CN115498330A (en) * | 2022-10-13 | 2022-12-20 | 东莞市精聚五金制品有限公司 | Battery shell, manufacturing method thereof and battery |
-
2020
- 2020-09-30 CN CN202022215708.2U patent/CN213340525U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675511A (en) * | 2021-07-08 | 2021-11-19 | 惠州锂威新能源科技有限公司 | Shell structure, battery and packaging method thereof |
| CN115498330A (en) * | 2022-10-13 | 2022-12-20 | 东莞市精聚五金制品有限公司 | Battery shell, manufacturing method thereof and battery |
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Effective date of registration: 20211227 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 23rd floor, Chengyue building, No. 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou City, Guangdong Province 510030 Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |