CN102005544A - Lithium ion battery anti-explosion combination block using aluminum stainless steel clad sheet - Google Patents
Lithium ion battery anti-explosion combination block using aluminum stainless steel clad sheet Download PDFInfo
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- CN102005544A CN102005544A CN2010105220122A CN201010522012A CN102005544A CN 102005544 A CN102005544 A CN 102005544A CN 2010105220122 A CN2010105220122 A CN 2010105220122A CN 201010522012 A CN201010522012 A CN 201010522012A CN 102005544 A CN102005544 A CN 102005544A
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- stainless steel
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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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- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a lithium ion battery anti-explosion combination block using an aluminum stainless steel clad sheet, comprising a small aluminum sheet, a seal ring, a stainless steel block, an anti-explosion aluminum sheet and the aluminum stainless steel clad sheet, wherein the aluminum stainless steel clad sheet comprises a stainless steel layer, an aluminum stainless steel composite layer and an aluminum surface layer which are successively arranged; a plurality of embosses are arranged on the stainless steel layer and the aluminum surface layer; the stainless steel block is welded with the stainless steel layer of the aluminum stainless steel clad sheet; an anti-explosion aluminum sheet is welded with the aluminum surface layer of the aluminum stainless steel clad sheet; the small aluminum sheet and the anti-explosion aluminum sheet are welded by laser; and the seal ring seals the rims of the stainless steel block, the anti-explosion aluminum sheet and the small aluminum sheet. The invention has the advantages of simplifying product structure, reducing internal resistance of the battery, having good stability, improving production efficiency, reducing manufacturing cost, simultaneously ensuring good welding performance and avoiding the deformation of the seal ring due to extrusion during sealing.
Description
Technical field
The present invention relates to adopt the explosion-proof composite cap for lithium ion battery of al stainless steel composite sheet.
Background technology
At present, cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power comprises explosion-proof aluminium flake, nickel plating block, all is to adopt aluminium ring or nickel ring to carry out spot welding or soldering between nickel plating block and the explosion-proof aluminium flake.This structure welding consistency is poor, and spot welding is insecure, and the soldering time is long can to produce oxidation, and the internal resistance of cell is increased, and influence battery useful life, and the nickel plating Costco Wholesale of blocking a shot is higher in addition, and whole explosion-proof combined block is the easy compressive deformation of sealing ring when battery seal.
Summary of the invention
The object of the present invention is to provide the explosion-proof composite cap for lithium ion battery of employing al stainless steel composite sheet, can effectively solve existing lithium ion battery explosion-proof cap welding difficulty, the problem that easy oxidation is increased the internal resistance of cell.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: the explosion-proof composite cap for lithium ion battery that adopts the al stainless steel composite sheet, comprise little aluminium flake, sealing ring, the stainless steel block, explosion-proof aluminium flake, the al stainless steel composite sheet, described al stainless steel composite sheet comprises the stainless steel layer that sets gradually, the al stainless steel composite bed, the aluminium surface layer, be equipped with some salient points on described stainless steel layer and the aluminium surface layer, described stainless steel block welds with the stainless steel layer of al stainless steel composite sheet, the aluminium surface layer welding of explosion-proof aluminium flake and al stainless steel composite sheet, adopt laser welding between described little aluminium flake and the explosion-proof aluminium flake, described sealing ring is blocked a shot stainless steel, explosion-proof aluminium flake, the edge sealing of little aluminium flake.
Preferably, described sealing ring has circular standing groove, and described standing groove bottom has through hole, and the bottom of described sealing ring standing groove is provided with at least one convex tendon, and described stainless steel block, explosion-proof aluminium flake are arranged in the standing groove, and described little aluminium flake is arranged in the through hole; Enhanced leaktightness circle intensity, when preventing battery seal, the sealing ring compressive deformation.
Preferably, also be provided with at least one convex tendon on the sidewall of described standing groove; Further enhanced leaktightness circle intensity prevents distortion.
Preferably, the cross section of described convex tendon is semicircle; Easily manufactured, easy-formation.
Preferably, the height of described convex tendon is 0.1mm; Can reach the fin height of better effects.
Compared with prior art, advantage of the present invention is: simplified product structure, reduced the internal resistance of cell, good stability is enhanced productivity, reduce manufacturing cost, guaranteed good welding performance simultaneously, avoided when sealing that little aluminium flake is squeezed and is out of shape, tow sides in the al stainless steel composite sheet have been equipped with some salient points, are convenient to weld with miscellaneous part.
Description of drawings
Fig. 1 adopts the structural representation of the explosion-proof composite cap for lithium ion battery of al stainless steel composite sheet for the present invention;
Fig. 2 is the A place partial enlarged drawing of Fig. 1.
Embodiment
Consult Fig. 1, Fig. 2 adopts the embodiment of the explosion-proof composite cap for lithium ion battery of al stainless steel composite sheet for the present invention, adopt the explosion-proof composite cap for lithium ion battery of al stainless steel composite sheet, comprise little aluminium flake 1, sealing ring 2, stainless steel block 3, explosion-proof aluminium flake 5, al stainless steel composite sheet 4, described al stainless steel composite sheet 4 comprises the stainless steel layer that sets gradually, the al stainless steel composite bed, the aluminium surface layer, be equipped with some salient points on described stainless steel layer and the aluminium surface layer, described stainless steel block 3 welds with the stainless steel layer of al stainless steel composite sheet 4, explosion-proof aluminium flake 5 welds with the aluminium surface layer of al stainless steel composite sheet 4, adopt laser welding between described little aluminium flake 1 and the explosion-proof aluminium flake 5, described sealing ring 2 is with stainless steel block 3, explosion-proof aluminium flake 5, the edge sealing of little aluminium flake 1, described sealing ring 2 has circular standing groove 22, described standing groove 22 bottoms have through hole, the bottom of described sealing ring 2 standing grooves 22 is provided with at least one convex tendon 21, described stainless steel block 3, explosion-proof aluminium flake 5 is arranged in the standing groove 22, described little aluminium flake 1 is arranged in the through hole, also be provided with at least one convex tendon 21 on the sidewall of described standing groove 22, the cross section of described convex tendon 21 is semicircle, and the height of described convex tendon 21 is 0.1mm.
All have some pores on described little aluminium flake 1 and the stainless steel block 3, the energy storage welding is all adopted in above-mentioned welding.
The above only is specific embodiments of the invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.
Claims (5)
1. adopt the explosion-proof composite cap for lithium ion battery of al stainless steel composite sheet, comprise little aluminium flake (1), sealing ring (2), stainless steel block (3), explosion-proof aluminium flake (5), it is characterized in that: also comprise al stainless steel composite sheet (4), described al stainless steel composite sheet (4) comprises the stainless steel layer that sets gradually, the al stainless steel composite bed, the aluminium surface layer, be equipped with some salient points on described stainless steel layer and the aluminium surface layer, described stainless steel block (3) welds with the stainless steel layer of al stainless steel composite sheet (4), explosion-proof aluminium flake (5) welds with the aluminium surface layer of al stainless steel composite sheet (4), adopt laser welding between described little aluminium flake (1) and the explosion-proof aluminium flake (5), described sealing ring (2) is with stainless steel block (3), explosion-proof aluminium flake (5), the edge sealing of little aluminium flake (1).
2. the explosion-proof composite cap for lithium ion battery of employing al stainless steel composite sheet as claimed in claim 1, it is characterized in that: described sealing ring (2) has circular standing groove (22), described standing groove (22) bottom has through hole, the bottom of the standing groove (22) of described sealing ring (2) is provided with at least one convex tendon (21), described stainless steel block (3), explosion-proof aluminium flake (5) are arranged in the standing groove (22), and described little aluminium flake (1) is arranged in the through hole.
3. the explosion-proof composite cap for lithium ion battery of employing al stainless steel composite sheet as claimed in claim 2 is characterized in that: also be provided with at least one convex tendon (21) on the sidewall of described standing groove (22).
4. the explosion-proof composite cap for lithium ion battery of employing al stainless steel composite sheet as claimed in claim 1 or 2 is characterized in that: the cross section of described convex tendon (21) is for semicircle.
5. the explosion-proof composite cap for lithium ion battery of employing al stainless steel composite sheet as claimed in claim 4 is characterized in that: the height of described convex tendon (21) is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105220122A CN102005544A (en) | 2010-10-26 | 2010-10-26 | Lithium ion battery anti-explosion combination block using aluminum stainless steel clad sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105220122A CN102005544A (en) | 2010-10-26 | 2010-10-26 | Lithium ion battery anti-explosion combination block using aluminum stainless steel clad sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102005544A true CN102005544A (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105220122A Pending CN102005544A (en) | 2010-10-26 | 2010-10-26 | Lithium ion battery anti-explosion combination block using aluminum stainless steel clad sheet |
Country Status (1)
| Country | Link |
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| CN (1) | CN102005544A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392857Y (en) * | 2009-04-29 | 2010-01-27 | 芜湖凯龙电子科技有限公司 | Novel explosion protection cap for lithium ion battery |
| CN101777633A (en) * | 2010-01-12 | 2010-07-14 | 周卫炳 | High- magnification cylindrical explosion-proof composite cap for lithium ion battery |
| CN201820806U (en) * | 2010-10-26 | 2011-05-04 | 周卫炳 | Lithium ion battery anti-explosion combined nut cap adopting aluminum-stainless steel composite plate |
-
2010
- 2010-10-26 CN CN2010105220122A patent/CN102005544A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201392857Y (en) * | 2009-04-29 | 2010-01-27 | 芜湖凯龙电子科技有限公司 | Novel explosion protection cap for lithium ion battery |
| CN101777633A (en) * | 2010-01-12 | 2010-07-14 | 周卫炳 | High- magnification cylindrical explosion-proof composite cap for lithium ion battery |
| CN201820806U (en) * | 2010-10-26 | 2011-05-04 | 周卫炳 | Lithium ion battery anti-explosion combined nut cap adopting aluminum-stainless steel composite plate |
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Application publication date: 20110406 |