CN101752516A - Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power - Google Patents
Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power Download PDFInfo
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- CN101752516A CN101752516A CN200910155678A CN200910155678A CN101752516A CN 101752516 A CN101752516 A CN 101752516A CN 200910155678 A CN200910155678 A CN 200910155678A CN 200910155678 A CN200910155678 A CN 200910155678A CN 101752516 A CN101752516 A CN 101752516A
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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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Abstract
The invention discloses a cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, comprising an explosion-proof aluminum sheet, a nickel-plating nut cap, a small aluminum sheet, a seal ring and an Al-Ni clad sheet, wherein, the Al-Ni clad sheet is welded between the nickel-plating nut cap and the explosion-proof aluminum sheet; the seal ring seals the edges of the explosion-proof aluminum sheet, the Al-Ni clad sheet and the nickel-plating nut cap; the outer end surface of the explosion-proof aluminum sheet is welded with the small aluminum sheet; the Al-Ni clad sheet and the explosion-proof aluminum sheet are welded by laser spot welding or by ultrasonic wave; and the Al-Ni clad sheet and the nickel-plating nut cap are welded by stored energy welding or electric resistance welding. The cylindrical lithium ion battery explosion-proof combined nut cap adopts aluminum surface laser spot welding in the explosion-proof aluminum sheet and the Al-Ni clad sheet, and the nickel-plating nut cap and the nickel surface in the Al-Ni clad sheet are once welded by stored energy welding or electric resistance welding. After the components are welded, no gap exists, and surface is smooth and bright. Homogenous materials can be firmly welded after adopting the Al-Ni clad sheet so that no internal resistance rise occurs after long time use, thus greatly prolonging the service life of batteries.
Description
[technical field]
The present invention relates to cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power.
[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.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes a kind of cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, can reduce internal resistance, prolongs battery useful life.
For achieving the above object, the present invention proposes a kind of cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, comprise explosion-proof aluminium flake, the nickel plating block, little aluminium flake, sealing ring, also comprise aluminum-nickel compound piece, described aluminum-nickel compound piece is welded between nickel plating block and the explosion-proof aluminium flake, described sealing ring is with explosion-proof aluminium flake, aluminum-nickel compound piece, the edge sealing of nickel plating block, be welded with little aluminium flake on the outer face of described explosion-proof aluminium flake, adopt laser spot welding or ultrasonic bonding between described aluminum-nickel compound piece and the explosion-proof aluminium flake, adopt stored energy welding or electric resistance welding welding between aluminum-nickel compound piece and the nickel plating block.
As preferably, described aluminum-nickel compound piece comprises nickel surface layer, aluminium nickel clad, the aluminium surface layer that sets gradually, described nickel surface layer and the welding of nickel plating block, and the aluminium surface layer welds with explosion-proof aluminium flake.Simple in structure, welding effect is good.
As preferably, the nickel surface layer of described aluminum-nickel compound piece is provided with some salient points, and the aluminium surface layer is provided with some concave points.Improve the convenience of welding, strengthen the fastness of welding.
As preferably, described some salient points are circular distribution, and some concave points are circular distribution.Rational in infrastructure, easy to process.
As preferably, increase portion on the described sealing ring in addition, described edge coating of increasing portion with little aluminium flake.Vibrations are short-circuited and cause and improved security performance by battery explosion when preventing that little aluminium flake from disconnecting.
Beneficial effect of the present invention: the present invention adopts aluminum-nickel compound piece to weld between explosion-proof aluminium flake and nickel plating block, aluminium face laser spot welding or ultrasonic bonding in explosion-proof aluminium flake and the aluminum-nickel compound piece, the nickel face in nickel plating block and the aluminum-nickel compound piece adopts stored energy welding or the disposable welding of electric resistance welding.Seamless, any surface finish, smooth in welding back.Adopt behind this aluminum-nickel compound piece firm welding between the homogeneous material, use no internal resistance rising phenomenon for a long time, prolonged the shelf life of battery greatly.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power of the present invention.
[embodiment]
Consult Fig. 1, cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, comprise explosion-proof aluminium flake 1, nickel plating block 2, little aluminium flake 3, sealing ring 4, also comprise aluminum-nickel compound piece 5, described aluminum-nickel compound piece 5 is welded between nickel plating block 2 and the explosion-proof aluminium flake 1, described sealing ring 4 is welded with little aluminium flake 3 with the edge sealing of explosion-proof aluminium flake 1, aluminum-nickel compound piece 5, nickel plating block 2 on the outer face of described explosion-proof aluminium flake 1.Described aluminum-nickel compound piece 5 comprises nickel surface layer, aluminium nickel clad, the aluminium surface layer that sets gradually, described nickel surface layer and 2 welding of nickel plating block, aluminium surface layer and 1 welding of explosion-proof aluminium flake.The explosion-proof aluminium flake 1 of aluminium matter and aluminium surface layer laser spot welding or the ultrasonic bonding in the aluminum-nickel compound piece 5, the nickel surface layer in nickel plating block 2 and the aluminum-nickel compound piece 5 adopts stored energy welding or the disposable welding of electric resistance welding.Welding operation is convenient, and welding effect is good, and internal resistance is little.
The nickel surface layer of described aluminum-nickel compound piece 5 is provided with some salient points 51, and the aluminium surface layer is provided with some concave points 52.Described some salient points 51 are circular distribution, and some concave points 52 are circular distribution.Salient point 51 is all corresponding with the shape and the position of concave point 52, add man-hour successively punching press just can form the simultaneously recessed structure of protruding one side.This structure mainly is in order to improve firm welding, and under pressure, this salient point 51 and concave point 52 are driven plain substantially during welding, and the projection of opposite planar is not clearly, among Fig. 1 for ease of mark salient point 51 and concave point 52, expression obviously.
Increase portion 41 in addition on the described sealing ring 4, described edge coating of increasing portion 41 with little aluminium flake 3.Vibrations are short-circuited and cause and improved security performance by battery explosion when preventing that little aluminium flake 3 from disconnecting.
The present invention is applicable to the high-magnification cylindrical type lithium ion battery of all models, size.
Though the present invention illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (5)
1. cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power, comprise explosion-proof aluminium flake, nickel plating block, little aluminium flake, sealing ring, it is characterized in that: also comprise aluminum-nickel compound piece, described aluminum-nickel compound piece is welded between nickel plating block and the explosion-proof aluminium flake, described sealing ring is with the edge sealing of explosion-proof aluminium flake, aluminum-nickel compound piece, nickel plating block, be welded with little aluminium flake on the outer face of described explosion-proof aluminium flake, adopt laser spot welding or ultrasonic bonding between described aluminum-nickel compound piece and the explosion-proof aluminium flake, adopt stored energy welding or electric resistance welding welding between aluminum-nickel compound piece and the nickel plating block.
2. cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power as claimed in claim 1, it is characterized in that: described aluminum-nickel compound piece comprises nickel surface layer, aluminium nickel clad, the aluminium surface layer that sets gradually, described nickel surface layer and the welding of nickel plating block, aluminium surface layer and the welding of explosion-proof aluminium flake.
3. cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power as claimed in claim 2 is characterized in that: the nickel surface layer of described aluminum-nickel compound piece is provided with some salient points, and the aluminium surface layer is provided with some concave points.
4. cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power as claimed in claim 3 is characterized in that: described some salient points are circular distribution, and some concave points are circular distribution.
5. as each described cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power in the claim 1 to 4, it is characterized in that: increase portion on the described sealing ring in addition, described edge coating of increasing portion little aluminium flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910155678A CN101752516A (en) | 2009-12-25 | 2009-12-25 | Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910155678A CN101752516A (en) | 2009-12-25 | 2009-12-25 | Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101752516A true CN101752516A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910155678A Pending CN101752516A (en) | 2009-12-25 | 2009-12-25 | Cylindrical lithium ion battery explosion-proof combined nut cap with high multiplying power |
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| CN (1) | CN101752516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312289A (en) * | 2016-10-14 | 2017-01-11 | 大连理工大学 | Ultrasonic metal welding method adopting pre-stamping deformation treatment |
-
2009
- 2009-12-25 CN CN200910155678A patent/CN101752516A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20100623 |