CN204375830U - A kind of lithium ion battery - Google Patents
A kind of lithium ion battery Download PDFInfo
- Publication number
- CN204375830U CN204375830U CN201420771937.4U CN201420771937U CN204375830U CN 204375830 U CN204375830 U CN 204375830U CN 201420771937 U CN201420771937 U CN 201420771937U CN 204375830 U CN204375830 U CN 204375830U
- Authority
- CN
- China
- Prior art keywords
- lug
- lithium ion
- ion battery
- pole piece
- utility
- 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.)
- Active
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
A kind of lithium ion battery, comprise between pole piece and be designed with barrier film and electrolyte, pole piece overcoat has shell, and shell upper end is fixedly connected with block, and described pole piece is welded with lug, and both sides, lug top are at least designed with a lug breach.
Description
Technical field
The utility model relates to a kind of battery, particularly relates to a kind of lithium ion battery.
Background technology
Lithium ion battery primary structure comprises: positive plate, negative plate, barrier film, electrolyte, shell, block etc.; wherein block a shot and divide and have PTC thermistor and without PTC two kinds; add PTC object be instantaneous large-current or high temperature time; internal resistance increases plays safeguard protection effect; but can be breakdown during the withstand voltage of voltage more than PTC; lose overcurrent safeguard protection effect, dangerous when this battery uses.
Summary of the invention
The purpose of this utility model is to provide a kind of when PTC lost efficacy, and has big current through disconnecting in time, a kind of lithium ion battery that during use, fail safe is high.
For achieving the above object, the technical solution adopted in the utility model is: a kind of lithium ion battery, comprise between pole piece and be designed with barrier film and electrolyte, pole piece overcoat has shell, shell upper end is fixedly connected with block, it is characterized in that: described pole piece is welded with lug, both sides, lug top are at least designed with a lug breach.
In this structure, described lug breach is circular arc cutaway or V-notch.
In this structure, the material of described lug is nickel, aluminium or copper nickel plating.
In this structure, described lithium ion battery is cylindrical lithium battery.
The utility model has the advantages of and be: due to this structure of the present utility model; by changing the structure of cylindrical lithium ion battery both positive and negative polarity lug; lug both sides have a breach at least; when have big current by time, high temperature can be produced instantaneously in indentation, there, lug is fused; so use the utility model can when PTC shielding failure; still can play a protective role, such the utility model just has the effect of duplicate protection, increases fail safe when cylindrical lithium ion battery uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lithium ion battery of prior art;
Fig. 2 is that in the utility model, lug breach is the structural representation of circular arc cutaway;
Fig. 3 is that in the utility model, lug breach is the structural representation of V-notch.
In accompanying drawing: 1, lug; 2, circular arc cutaway; 3, pole piece; 4, V-notch.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
The utility model as shown in Figure 1, 2, 3, a kind of lithium ion battery, comprise between pole piece 3 and be designed with barrier film and electrolyte, pole piece 3 overcoat has shell, shell upper end is fixedly connected with block, it is characterized in that: described pole piece is welded with lug 1, both sides, lug 1 top are at least designed with a lug breach.In the present embodiment, described lug breach is circular arc cutaway 2 or V-notch 4.In the present embodiment, the material of described lug 1 is nickel, aluminium or copper nickel plating.In the present embodiment, described lithium ion battery is cylindrical lithium battery.
The utility model provides a kind of lithium ion battery plus-negative plate extreme ear structure, when PTC lost efficacy, has big current through disconnecting in time, and irrecoverable, increases fail safe when battery uses.
As shown in Figure 2, lithium ion battery plus-negative plate lug of the present utility model, this battery pole piece lug has a circular arc cutaway, and the resistance to electric current handling capacity of this lug shape is relevant with the size of lug material, thickness and L.As, lug material is aluminium, thickness be 0.1mm, L wide be 2mm, during immediate current > 30A, lug can fuse, and plays the effect of power-off protection.
As shown in Figure 3, lithium ion battery plus-negative plate lug of the present utility model, this battery pole piece lug has a V-notch, and the resistance to electric current handling capacity of this lug shape is relevant with the size of lug material, thickness and L.As, lug material is nickel, thickness be 0.1mm, L wide be 2mm, during immediate current > 25A, lug can fuse, and plays the effect of power-off protection.
L is the width of lug after removing breach.
Embodiment recited above is only be described preferred implementation of the present utility model; not design of the present utility model and protection range are limited; under the prerequisite not departing from the utility model design concept; the various modification that in this area, common engineers and technicians make the technical solution of the utility model and improvement, all should fall into protection range of the present utility model.
Claims (4)
1. a lithium ion battery, comprise between pole piece (3) and be designed with barrier film and electrolyte, pole piece (3) overcoat has shell, and shell upper end is fixedly connected with block, it is characterized in that: described pole piece is welded with lug (1), lug (1) both sides, top are at least designed with a lug breach.
2. a kind of lithium ion battery according to claim 1, is characterized in that: described lug breach is circular arc cutaway (2) or V-notch (4).
3. a kind of lithium ion battery according to claim 2, is characterized in that: the material of described lug (1) is nickel, aluminium or copper nickel plating.
4. a kind of lithium ion battery according to claim 3, is characterized in that: described lithium ion battery is cylindrical lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771937.4U CN204375830U (en) | 2014-12-10 | 2014-12-10 | A kind of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771937.4U CN204375830U (en) | 2014-12-10 | 2014-12-10 | A kind of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375830U true CN204375830U (en) | 2015-06-03 |
Family
ID=53332023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771937.4U Active CN204375830U (en) | 2014-12-10 | 2014-12-10 | A kind of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204375830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428590A (en) * | 2015-12-18 | 2016-03-23 | 山东精工电子科技有限公司 | Treatment method for cathode lug of lithium battery |
| CN109192916A (en) * | 2018-09-14 | 2019-01-11 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft-package battery mould group |
| CN110085798A (en) * | 2019-05-31 | 2019-08-02 | 广东天劲新能源科技股份有限公司 | A kind of special-shaped positive and negative anodes tab and lithium ion battery avoiding large current charge |
-
2014
- 2014-12-10 CN CN201420771937.4U patent/CN204375830U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428590A (en) * | 2015-12-18 | 2016-03-23 | 山东精工电子科技有限公司 | Treatment method for cathode lug of lithium battery |
| CN109192916A (en) * | 2018-09-14 | 2019-01-11 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft-package battery mould group |
| CN109192916B (en) * | 2018-09-14 | 2024-02-02 | 骆驼集团武汉光谷研发中心有限公司 | Universal soft package battery module |
| CN110085798A (en) * | 2019-05-31 | 2019-08-02 | 广东天劲新能源科技股份有限公司 | A kind of special-shaped positive and negative anodes tab and lithium ion battery avoiding large current charge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 277800 No. x6699, Guangming Road, high tech Zone, Zaozhuang City, Shandong Province (north of the junction of Guangming Road and Huaxin Road) Patentee after: Shandong Jinggong Electronic Technology Co.,Ltd. Address before: 277800 Shandong Zaozhuang high tech Zone Thailand Industrial Park Fuyuan five road hight Electronics Group Patentee before: Shandong Seiko Electronic Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231207 Address after: A88, 4th Floor, Lianhui Building, No. 5 Xingong Village, Sanlian Community, Longhua Street, Longhua District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen Hengliyuan New Energy Co.,Ltd. Address before: 277800 No. x6699, Guangming Road, high tech Zone, Zaozhuang City, Shandong Province (north of the junction of Guangming Road and Huaxin Road) Patentee before: Shandong Jinggong Electronic Technology Co.,Ltd. |