CN101777634A - High-magnification cylindrical explosion-proof composite cap for lithium ion battery - Google Patents
High-magnification cylindrical explosion-proof composite cap for lithium ion battery Download PDFInfo
- Publication number
- CN101777634A CN101777634A CN201010125330A CN201010125330A CN101777634A CN 101777634 A CN101777634 A CN 101777634A CN 201010125330 A CN201010125330 A CN 201010125330A CN 201010125330 A CN201010125330 A CN 201010125330A CN 101777634 A CN101777634 A CN 101777634A
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- China
- Prior art keywords
- explosion
- proof
- aluminium flake
- lithium ion
- ion battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention discloses a high- magnification cylindrical explosion-proof composite cap for a lithium ion battery, which comprises an explosion-proof aluminum sheet, a small aluminum sheet, a seal ring and an aluminum cap, wherein the explosion-proof aluminum sheet and the aluminum cap are welded by ultrasonic welding or resistance welding; the seal ring seals the edges of the explosion-proof aluminum sheet and the aluminum cap; and the small aluminum sheet is welded on the lower end surface of the explosion-proof aluminum sheet. The invention simplifies the product structure, reduces the internal resistance of the battery, has high stability, enhances the production efficiency, reduces the manufacturing cost and ensures 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 explosion-proof aluminium flake, little aluminium flake, sealing ring, also comprise aluminum cap, adopt ultrasonic bonding or electric resistance welding welding between described explosion-proof aluminium flake and the aluminum cap, described sealing ring is welded with little aluminium flake with the edge sealing of explosion-proof aluminium flake, aluminum cap on the lower surface of described explosion-proof aluminium flake.
Preferably, described explosion-proof aluminium flake upper strata 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 Fig. 1, Fig. 2 is the embodiment of 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 explosion-proof aluminium flake 1, little aluminium flake 2, sealing ring 3, also comprise aluminum cap 4, adopt ultrasonic bonding or electric resistance welding welding between described explosion-proof aluminium flake 1 and the aluminum cap 4, described sealing ring 3 is with explosion-proof aluminium flake 1, the edge sealing of aluminum cap 4, be welded with little aluminium flake 2 on the lower surface of described explosion-proof aluminium flake 1, described explosion-proof aluminium flake 1 upper strata 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 aluminum cap 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 explosion-proof aluminium flake (1), little aluminium flake (2), sealing ring (3), it is characterized in that: also comprise aluminum cap (4), adopt ultrasonic bonding or electric resistance welding welding between described explosion-proof aluminium flake (1) and the aluminum cap (4), described sealing ring (3) is welded with little aluminium flake (2) with the edge sealing of explosion-proof aluminium flake (1), aluminum cap (4) on the lower surface of described explosion-proof aluminium flake (1).
2. explosion-proof combined block of high-rate cylindrical lithium ion battery as claimed in claim 1 is characterized in that: described explosion-proof aluminium flake (1) upper strata 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 |
|---|---|---|---|
| CN201010125330A CN101777634A (en) | 2010-03-16 | 2010-03-16 | High-magnification cylindrical explosion-proof composite cap for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010125330A CN101777634A (en) | 2010-03-16 | 2010-03-16 | High-magnification cylindrical explosion-proof composite cap for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101777634A true CN101777634A (en) | 2010-07-14 |
Family
ID=42514023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010125330A Pending CN101777634A (en) | 2010-03-16 | 2010-03-16 | High-magnification cylindrical explosion-proof composite cap for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101777634A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005547A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Explosion-proof combined cap of cylindrical lithium ion battery |
| CN102332601A (en) * | 2010-12-21 | 2012-01-25 | 东莞新能源科技有限公司 | Cylindrical lithium ion battery |
| CN106312289A (en) * | 2016-10-14 | 2017-01-11 | 大连理工大学 | Ultrasonic metal welding method adopting pre-stamping deformation treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854822Y (en) * | 2005-11-29 | 2007-01-03 | 罗新华 | Explosion-proof device combined with lithium ion battery |
| JP2008251187A (en) * | 2007-03-29 | 2008-10-16 | Sanyo Electric Co Ltd | Sealed battery |
| CN101626066A (en) * | 2009-08-14 | 2010-01-13 | 深圳市科达利实业有限公司 | Lithium battery cover plate with explosion and breakage preventing protection apparatus and production method thereof |
| CN201629358U (en) * | 2010-03-16 | 2010-11-10 | 周卫炳 | Explosion proof combined cap of high-rate cylindrical lithium-ion battery |
-
2010
- 2010-03-16 CN CN201010125330A patent/CN101777634A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854822Y (en) * | 2005-11-29 | 2007-01-03 | 罗新华 | Explosion-proof device combined with lithium ion battery |
| JP2008251187A (en) * | 2007-03-29 | 2008-10-16 | Sanyo Electric Co Ltd | Sealed battery |
| CN101626066A (en) * | 2009-08-14 | 2010-01-13 | 深圳市科达利实业有限公司 | Lithium battery cover plate with explosion and breakage preventing protection apparatus and production method thereof |
| CN201629358U (en) * | 2010-03-16 | 2010-11-10 | 周卫炳 | Explosion proof combined cap of high-rate cylindrical lithium-ion battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005547A (en) * | 2010-10-26 | 2011-04-06 | 周卫炳 | Explosion-proof combined cap of cylindrical lithium ion battery |
| CN102332601A (en) * | 2010-12-21 | 2012-01-25 | 东莞新能源科技有限公司 | Cylindrical lithium ion battery |
| CN102332601B (en) * | 2010-12-21 | 2014-04-09 | 东莞新能源科技有限公司 | Cylindrical lithium ion battery |
| CN106312289A (en) * | 2016-10-14 | 2017-01-11 | 大连理工大学 | Ultrasonic metal welding method adopting pre-stamping deformation treatment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100714 |