CN101800296A - Explosion-proof combined block of high-rate cylindrical lithium ion battery - Google Patents
Explosion-proof combined block of high-rate cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN101800296A CN101800296A CN201010125337A CN201010125337A CN101800296A CN 101800296 A CN101800296 A CN 101800296A CN 201010125337 A CN201010125337 A CN 201010125337A CN 201010125337 A CN201010125337 A CN 201010125337A CN 101800296 A CN101800296 A CN 101800296A
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- explosion
- proof
- nickel
- surface layer
- aluminum
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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)
Abstract
The invention discloses an explosion-proof combined block of a high-rate cylindrical lithium ion battery, comprising a nickeled block, a small aluminum sheet, a sealing ring and an explosion-proof aluminum nickel composite sheet, wherein the explosion-proof aluminum nickel composite sheet comprises a nickel surface layer, an aluminum nickel composite layer and an aluminum surface layer which are arranged in sequence; the nickeled block and the nickel surface layer are welded by adopting stored energy and electric resistance; the explosion-proof aluminum nickel composite sheet and the edge of the nickeled block are sealed by the sealing ring; and the small aluminum sheet is welded with the aluminum surface layer of the explosion-proof aluminum nickel composite sheet. The invention has the advantages of simplifying the product structure, reducing the internal resistance of the battery, having favorable stability, improving the production efficiency, reducing the manufacturing cost, and also ensuring favorable welding performance.
Description
Technical field
The present invention relates to explosion-proof combined block of high-rate cylindrical lithium ion battery.
Background technology
Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power comprises explosion-proof aluminium flake, nickel plating block, at present, 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 influences battery useful life.
I on January 12nd, 2010 to China national Department of Intellectual Property submitted to application number be 201020049771.7 the name be called: the patent of cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, can effectively address the above problem, but need between explosion-proof aluminium flake and nickel plating block, add aluminum-nickel compound piece, weld twice, increased manufacturing procedure and product cost.
Summary of the invention
The object of the present invention is to provide explosion-proof combined block of high-rate cylindrical lithium ion battery, can effectively solve existing cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power needs twice welding to increase the problem of manufacturing procedure and product cost.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: explosion-proof combined block of high-rate cylindrical lithium ion battery, comprise nickel plating block, little aluminium flake, sealing ring, also comprise explosion-proof aluminum-nickel compound piece, described explosion-proof aluminum-nickel compound piece comprises nickel surface layer, aluminium nickel clad, the aluminium surface layer that sets gradually, adopt stored energy welding welding or electric resistance welding welding between described nickel plating block and the nickel surface layer, described sealing ring is with the edge sealing of explosion-proof aluminum-nickel compound piece, nickel plating block, and the aluminium surface layer of described little aluminium flake and explosion-proof aluminum-nickel compound piece welds.
Preferably, described nickel surface layer is provided with some salient points; Improve the convenience of welding, strengthen the fastness of welding.
Preferably, described some salient points are circular distribution; Rational in infrastructure, convenient processing.
Preferably, increase portion on the described sealing ring in addition, described edge coating of increasing portion with little aluminium flake; Vibrations are opened circuit and are caused and improved security performance by battery explosion when preventing that little aluminium flake from disconnecting.
Preferably, the described subordinate of increasing portion is provided with the bottom that some fixed strips are coated on little aluminium flake; Seal not yielding during encapsulation.
Compared with prior art, advantage of the present invention is: simplified product structure, reduced the internal resistance of cell, good stability is enhanced productivity, and reduces manufacturing cost, has guaranteed good welding performance simultaneously.
Description of drawings
Fig. 1 is the structural representation of explosion-proof combined block of high-rate cylindrical lithium ion battery of the present invention;
Fig. 2 is the upward view of Fig. 1.
Embodiment
Consult the embodiment of Fig. 1 for explosion-proof combined block of high-rate cylindrical lithium ion battery of the present invention, explosion-proof combined block of high-rate cylindrical lithium ion battery, comprise nickel plating block 4, little aluminium flake 2, sealing ring 3, it is characterized in that: also comprise explosion-proof aluminum-nickel compound piece 1, described explosion-proof aluminum-nickel compound piece 1 comprises the nickel surface layer that sets gradually, the aluminium nickel clad, the aluminium surface layer, adopt stored energy welding welding or electric resistance welding welding between described nickel plating block 4 and the nickel surface layer, described sealing ring 3 is with explosion-proof aluminum-nickel compound piece 1, the edge sealing of nickel plating block 4, described little aluminium flake 2 welds with the aluminium surface layer of explosion-proof aluminum-nickel compound piece 1, described nickel surface layer is provided with some salient points 11, described some salient points 11 are circular distribution, increase portion 31 in addition on the described sealing ring 3, the described portion 31 of increasing coats the edge of little aluminium flake 2, and described portion 31 bottoms of increasing are provided with some and fix 32 bottoms that are coated on little aluminium flake 2.
Among Fig. 1 for the ease of mark salient point 11, graticule comparatively obvious.The thickness of nickel plating block 4 can be suitable thickening to 0.7mm～0.8mm.
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. explosion-proof combined block of high-rate cylindrical lithium ion battery, comprise nickel plating block (4), little aluminium flake (2), sealing ring (3), it is characterized in that: also comprise explosion-proof aluminum-nickel compound piece (1), described explosion-proof aluminum-nickel compound piece (1) comprises nickel surface layer, aluminium nickel clad, the aluminium surface layer that sets gradually, adopt stored energy welding welding or electric resistance welding welding between described nickel plating block (4) and the nickel surface layer, described sealing ring (3) is with the edge sealing of explosion-proof aluminum-nickel compound piece (1), nickel plating block (4), and described little aluminium flake (2) welds with the aluminium surface layer of explosion-proof aluminum-nickel compound piece (1).
2. explosion-proof combined block of high-rate cylindrical lithium ion battery as claimed in claim 1 is characterized in that: described nickel surface layer is provided with some salient points (11).
3. explosion-proof combined block of high-rate cylindrical lithium ion battery as claimed in claim 2 is characterized in that: described some salient points (11) are circular distribution.
4. as claim 1 or 2 or 3 described explosion-proof combined block of high-rate cylindrical lithium ion battery, it is characterized in that: increase portion (31) on the described sealing ring (3) in addition, described edge coating of increasing portion (31) little aluminium flake (2).
5. explosion-proof combined block of high-rate cylindrical lithium ion battery as claimed in claim 4 is characterized in that: described portion (31) bottom of increasing is provided with the bottom that some fixed strips (32) are coated on little aluminium flake (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125337A CN101800296A (en) | 2010-03-16 | 2010-03-16 | Explosion-proof combined block of high-rate cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125337A CN101800296A (en) | 2010-03-16 | 2010-03-16 | Explosion-proof combined block of high-rate cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101800296A true CN101800296A (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010125337A Pending CN101800296A (en) | 2010-03-16 | 2010-03-16 | Explosion-proof combined block of high-rate cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101800296A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005549A (en) * | 2010-10-27 | 2011-04-06 | 杨学新 | Explosion-proof combined cap of high-power battery |
| CN102005545A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Cylindrical high-magnification lithium ion battery anti-explosion combined cover cap |
| CN102005546A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Explosion-proof combined cap of cylindrical high-magnification lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845183Y (en) * | 2005-09-09 | 2006-12-06 | 东莞新能源电子科技有限公司 | Sefety explosion-proof screw cap of cylindrical lithium ion battery |
| CN101335335A (en) * | 2008-08-01 | 2008-12-31 | 上海德朗能电池有限公司 | Cylindrical lithium ion cell cap and assembly method |
| CN201191623Y (en) * | 2007-08-15 | 2009-02-04 | 河南环宇集团有限公司 | Battery assembling cap and cylindrical lithium ionic cell produced by using the same |
| 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 |
-
2010
- 2010-03-16 CN CN201010125337A patent/CN101800296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845183Y (en) * | 2005-09-09 | 2006-12-06 | 东莞新能源电子科技有限公司 | Sefety explosion-proof screw cap of cylindrical lithium ion battery |
| CN201191623Y (en) * | 2007-08-15 | 2009-02-04 | 河南环宇集团有限公司 | Battery assembling cap and cylindrical lithium ionic cell produced by using the same |
| CN101335335A (en) * | 2008-08-01 | 2008-12-31 | 上海德朗能电池有限公司 | Cylindrical lithium ion cell cap and assembly method |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005545A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Cylindrical high-magnification lithium ion battery anti-explosion combined cover cap |
| CN102005546A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Explosion-proof combined cap of cylindrical high-magnification lithium ion battery |
| CN102005549A (en) * | 2010-10-27 | 2011-04-06 | 杨学新 | Explosion-proof combined cap of high-power battery |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100811 |