CN108039445A - A kind of lug of lithium battery - Google Patents
A kind of lug of lithium battery Download PDFInfo
- Publication number
- CN108039445A CN108039445A CN201711024882.5A CN201711024882A CN108039445A CN 108039445 A CN108039445 A CN 108039445A CN 201711024882 A CN201711024882 A CN 201711024882A CN 108039445 A CN108039445 A CN 108039445A
- Authority
- CN
- China
- Prior art keywords
- glue
- line
- lug
- lithium battery
- metal layer
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
A kind of lug of lithium battery, including metal layer and the lug glue-line for fitting in the metal layer both sides；Lug glue-line per side includes the first glue-line, fits in the second glue-line of the first glue-line both sides and fits in the second glue-line both sides and the side of the metal layer is fitted in by wherein the 3rd glue-line of side positioned at the 3rd glue-line of the side opposite with first glue-line, lug glue-line of the metal layer per side.A kind of lug of lithium battery provided by the invention, has the glue-line of multiple and different fusing points, corrosion-resistant, is less prone to molten, phenomena such as excessive glue is excessive.Furthermore it is also possible to effectively prevent infiltration of the electrolyte in lithium battery between metal layer and lug glue-line, there is good leakproofness.
Description
【Technical field】
The present invention relates to battery technology field, more particularly to a kind of lug of lithium battery.
【Background technology】
At present, lithium battery has been widely used in multiple fields, and requirement of the people to lithium battery is also higher and higher, and lithium
The leakage of battery, the problems such as coming off and corroding, are well solved, and have seriously affected the security performance of lithium battery.Lithium
Battery is usually made of shell, the electrolyte being contained in shell, the core being contained in shell and block, and core both ends are equipped with
Lug.The lug of lithium battery is formed by metal strip and gel hot pressing.In lithium battery preparation process, the lug of core
Package quality is key factor the problems such as influencing the leakage of lithium battery, come off and corrode.The thickness of gel on lug and
Fusing point is the foundation for setting encapsulation parameter, if temperature is excessive, gel is easily superfused；If pressure is excessive, gel excessive glue
Excessively, these can all influence the package quality of lithium battery pole ear.
In consideration of it, it is really necessary to provide a kind of lug of new lithium battery to overcome disadvantages described above.
【The content of the invention】
The object of the present invention is to provide a kind of lug of lithium battery, do not easily caused molten, interface stability is strong, corrosion-resistant,
Easy to encapsulate.
To achieve these goals, the present invention provides a kind of lug of lithium battery, including metal layer and fits in the gold
Belong to the lug glue-line of layer both sides；Lug glue-line per side includes the first glue-line, fits in the second glue of the first glue-line both sides
Layer and fit in the second glue-line both sides and positioned at the side opposite with first glue-line the 3rd glue-line, the metal layer
Lug glue-line per side fits in the side of the metal layer by wherein the 3rd glue-line of side.
In a preferred embodiment, first glue-line is chlorinated polypropylene, is changed by crosslinking syndiotactic polypropylene chlorination
Property is made；Second glue-line is modified polypropene layer, is to be copolymerized by crosslinking syndiotactic polypropylene monomer and polyvinyl monomer through connecing
Branch modification is made；3rd glue-line forms for propylene monomer copolymerization.
In a preferred embodiment, the thickness of first glue-line accounts for the 43%- of the lug bondline thickness of every side
45%；The thickness of second glue-line accounts for the 7%-9% of the lug bondline thickness of every side；The thickness of 3rd glue-line accounts for every side
Lug bondline thickness 21.5%-18.5%.
In a preferred embodiment, the temperature range of the first glue-line fusing point is：160℃-165℃；It is described
The temperature range of the second glue-line fusing point be：145℃-160℃；The temperature range of the 3rd glue-line fusing point is：130℃-
135℃。
In a preferred embodiment, the thickness of metal layer is greater than or equal to 200 μm.
In a preferred embodiment, the metal layer is any one in aluminium lamination, nickel layer and layers of copper.
Compared with prior art, the lug of a kind of lithium battery provided by the invention, has the glue-line of multiple and different fusing points, resistance to
Corrosion, was less prone to molten, phenomena such as excessive glue is excessive.Furthermore it is also possible to effectively prevent the electrolyte in lithium battery in metal layer
With the infiltration between lug glue-line, there is good leakproofness.
【Brief description of the drawings】
Fig. 1 is the sectional view of the lug of lithium battery provided by the invention.
【Embodiment】
In order to make the purpose of the present invention, technical solution and advantageous effects become apparent from understanding, below in conjunction with attached drawing and
Embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Referring to Fig. 1, the present invention provides a kind of lug 100 of lithium battery, including metal layer 10 and fit in the metal
The lug glue-line 20 of 10 both sides of layer, the lug glue-line 20 per side include the first glue-line 21, fit in 21 both sides of the first glue-line
The second glue-line 22 and fit in 22 both sides of the second glue-line and positioned at the side opposite with first glue-line 21 the 3rd
Glue-line 23, lug glue-line 20 of the metal layer 10 per side fit in the metal layer 10 by wherein the 3rd glue-line 23 of side
Side.
Specifically, first glue-line 21 is chlorinated polypropylene, it is made, is had resistance to by crosslinking syndiotactic polypropylene is chlorination modified
The alkaline-resisting antioxygenic property of acid；Second glue-line 22 is modified polypropene layer, is by crosslinking syndiotactic polypropylene monomer and polyethylene
Monomer copolymerization is made through graft modification；3rd glue-line 23 forms for propylene monomer copolymerization.
Specifically, the thickness of first glue-line 21 accounts for the 43%-45% of 20 thickness of lug glue-line of every side；Described second
The thickness of glue-line 22 accounts for the 7%-9% of 20 thickness of lug glue-line of every side；The thickness of 3rd glue-line 23 accounts for the lug of every side
The 21.5%-18.5% of 20 thickness of glue-line.
Specifically, the temperature range of 21 fusing point of the first glue-line is：160℃-165℃；Second glue-line 22
The temperature range of fusing point is：145℃-160℃；The temperature range of 3rd glue-line, 23 fusing point is：130℃-135℃.
Specifically, the thickness of metal layer 10 is greater than or equal to 200 μm.
Specifically, the metal layer 10 is any one in aluminium lamination, nickel layer and layers of copper.
A kind of lug of lithium battery provided by the invention, has the glue-line of multiple and different fusing points, corrosion-resistant, is less prone to
It is molten, phenomena such as excessive glue is excessive.Furthermore it is also possible to effectively prevent the electrolyte in lithium battery between metal layer and lug glue-line
Infiltration, has good leakproofness.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
Additional advantage and modification is easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of refreshing and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (6)
- A kind of 1. lug of lithium battery, it is characterised in that：Including metal layer and fit in the lug glue-lines of the metal layer both sides； Lug glue-line per side includes the first glue-line, fits in the second glue-line of the first glue-line both sides and fit in second glue Layer both sides simultaneously pass through it positioned at the 3rd glue-line of the side opposite with first glue-line, lug glue-line of the metal layer per side Middle the 3rd glue-line of side fits in the side of the metal layer.
- 2. the lug of lithium battery according to claim 1, it is characterised in that：First glue-line is chlorinated polypropylene, by Syndiotactic polypropylene is chlorination modified is made for crosslinking；Second glue-line is modified polypropene layer, is by crosslinking syndiotactic polypropylene monomer It is copolymerized with polyvinyl monomer and is made through graft modification；3rd glue-line forms for propylene monomer copolymerization.
- 3. the lug of lithium battery according to claim 2, it is characterised in that：The thickness of first glue-line accounts for the pole of every side The 43%-45% of ear bondline thickness；The thickness of second glue-line accounts for the 7%-9% of the lug bondline thickness of every side；Described The thickness of three glue-lines accounts for the 21.5%-18.5% of the lug bondline thickness of every side.
- 4. the lug of lithium battery according to claim 3, it is characterised in that：The temperature range of the first glue-line fusing point For：160℃-165℃；The temperature range of the second glue-line fusing point is：145℃-160℃；The 3rd glue-line fusing point Temperature range be：130℃-135℃.
- 5. the lug of lithium battery according to claim 1, it is characterised in that：The thickness of metal layer is greater than or equal to 200 μm.
- 6. the lug of lithium battery according to claim 5, it is characterised in that：The metal layer is aluminium lamination, nickel layer and layers of copper In any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024882.5A CN108039445A (en) | 2017-10-27 | 2017-10-27 | A kind of lug of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024882.5A CN108039445A (en) | 2017-10-27 | 2017-10-27 | A kind of lug of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108039445A true CN108039445A (en) | 2018-05-15 |
Family
ID=62093671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024882.5A Pending CN108039445A (en) | 2017-10-27 | 2017-10-27 | A kind of lug of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108039445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233234A (en) * | 2019-05-08 | 2019-09-13 | 深圳瑞隆新能源科技有限公司 | A kind of column tab and preparation method thereof |
| WO2021195853A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and electronic device having same |
| CN113678315A (en) * | 2020-11-18 | 2021-11-19 | 宁德新能源科技有限公司 | Electrochemical device and electronic device including the same |
-
2017
- 2017-10-27 CN CN201711024882.5A patent/CN108039445A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233234A (en) * | 2019-05-08 | 2019-09-13 | 深圳瑞隆新能源科技有限公司 | A kind of column tab and preparation method thereof |
| CN110233234B (en) * | 2019-05-08 | 2020-11-06 | 江西瑞隆锂能科技有限公司 | Manufacturing method of columnar tab |
| WO2021195853A1 (en) * | 2020-03-30 | 2021-10-07 | 宁德新能源科技有限公司 | Cell and electronic device having same |
| CN113678315A (en) * | 2020-11-18 | 2021-11-19 | 宁德新能源科技有限公司 | Electrochemical device and electronic device including the same |
| WO2022104590A1 (en) * | 2020-11-18 | 2022-05-27 | 宁德新能源科技有限公司 | Electrochemical device and electronic device comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191028 Address after: 518000 Shenyu Science and Technology Park, No. 68 Lanjingbei Road, Laokeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 101 Applicant after: Shenzhen Anding New Energy Technology Development Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Pingshan Pingshan Zhu Keng industrial zone 3, 4 Building Community Applicant before: Shenzhen Optimum Battery Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180515 |
|
| WD01 | Invention patent application deemed withdrawn after publication |