CN209822798U - Cylindrical lithium ion battery with improved battery cell vibration performance - Google Patents
Cylindrical lithium ion battery with improved battery cell vibration performance Download PDFInfo
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- CN209822798U CN209822798U CN201920749131.8U CN201920749131U CN209822798U CN 209822798 U CN209822798 U CN 209822798U CN 201920749131 U CN201920749131 U CN 201920749131U CN 209822798 U CN209822798 U CN 209822798U
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- core
- negative pole
- lithium ion
- ion battery
- pole piece
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to an improve cylinder lithium ion battery of electric core vibrations performance relates to battery technology field, including rolling up the core, roll up negative pole piece and the positive plate that the core was put including mutual cover, be located and be provided with the diaphragm between negative pole piece and the positive plate, the lower extreme of negative pole piece is provided with downwardly extending's negative pole utmost point ear, the upper end of positive plate is provided with the anodal utmost point ear that upwards extends, the surface coating who rolls up the core has the expansion sticky tape that is used for absorbing electrolyte. The cylindrical lithium ion battery avoids the fatigue fracture of the lug caused by the vibration of the battery cell, thereby improving the vibration performance of the battery cell.
Description
Technical Field
The utility model relates to an improve cylinder lithium ion battery of electric core vibrations performance relates to battery technical field.
Background
Because of its advantages of small size, light weight and high safety, the lithium ion battery is widely used in the fields of electronic cigarettes, electric vehicles, military supplies and the like.
At present, the cylindrical steel shell battery mostly adopts an aluminum strip as an anode lug and a nickel strip as a cathode lug, the anode lug is connected with a cover cap through laser welding, the cathode lug is connected with the steel shell through resistance welding, the aluminum strip and the nickel strip are thin, generally 0.08 ~ 0.15.15 mm, when an electric core vibrates for a long time and shakes or shakes, a winding core can pull the aluminum strip and the nickel strip to shake, fatigue fracture is easy to generate, along with the increase of the shaking times, the probability of the fatigue fracture of the aluminum strip and the nickel strip is larger, the internal circuit break of the electric core is caused, the battery fails.
Disclosure of Invention
An object of the utility model is to provide an improve cylinder lithium ion battery of electric core vibrations performance, this cylinder lithium ion battery avoid the vibrations of electric core to arouse utmost point ear fatigue fracture to improve the vibrations performance of electric core.
The technical scheme of the utility model lies in: the utility model provides an improve cylinder lithium ion battery of electric core vibrations performance, includes rolls up the core, roll up the core including the negative pole piece and the positive plate that each other overlaps and put, be located and be provided with the diaphragm between negative pole piece and the positive plate, the lower extreme of negative pole piece is provided with downwardly extending's negative pole utmost point ear, the upper end of positive plate is provided with the anodal utmost point ear of upwards extending, the surface coating that rolls up the core has the expansion sticky tape that is used for absorbing electrolyte.
Further, the expansion adhesive tape is made of polyacrylate.
Further, the width of the expansion adhesive tape is 25mm, and the length of the expansion adhesive tape is 25 mm.
Further, the expansion adhesive tape is arranged in the middle of the surface of the winding core.
Compared with the prior art, the utility model has the advantages of it is following: this cylinder lithium ion battery adopts the inflation sticky tape, and the process of manufacture is simple and easy, glues the imbibition inflation through the inflation, has reduced the space of rolling up between core and the box hat inner wall, will roll up the core and fix in the box hat, avoids the vibrations of electric core to arouse utmost point ear fatigue fracture to improve the shock properties of electric core.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of the present invention;
in the figure: 1-negative pole piece, 2-diaphragm, 3-positive pole piece, 4-expansion adhesive tape, 5-negative pole tab, 6-positive pole tab and 7-winding core.
Detailed Description
In order to make the aforementioned features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to FIGS. 1 and 2
The utility model provides an improve cylinder lithium ion battery of electric core vibrations performance, includes to roll up core 7, roll up core and include negative pole piece 1 and the positive plate 3 that a plurality of mutual cover was put, be located and be provided with diaphragm 2 between negative pole piece and the positive plate, the lower extreme of negative pole piece is provided with downwardly extending's negative pole utmost point ear 5, the upper end of positive plate is provided with the anodal utmost point ear 6 that upwards extends, the surface coating that rolls up the core has the expansion sticky tape 4 that is used for absorbing electrolyte. This roll up core and install in the battery steel casing to absorb electrolyte through the inflation sticky tape in the cylinder lithium ion battery use, and then the inflation has reduced the space between roll core and the steel casing inner wall.
In this embodiment, roll up the core and put and be pipy first negative pole piece, first diaphragm, first positive plate, second diaphragm, second negative pole piece, third diaphragm, the positive plate of second, third negative pole piece and outer diaphragm including from inside to outside cover in proper order, negative pole utmost point ear sets up in the lower extreme of first negative pole piece, positive pole utmost point ear sets up in the upper end of the positive plate of second.
In this embodiment, in order to better absorb the electrolyte, the expansion tape is made of polyacrylate.
In this embodiment, in order to fully fill the gap between the winding core and the inner wall of the steel shell, the width of the expansion adhesive tape is 25mm, and the length is 25 mm.
In this embodiment, in order to fill the gap between the winding core and the inner wall of the steel shell more uniformly after the expansion of the expansion adhesive tape, the expansion adhesive tape is arranged in the middle of the surface of the winding core.
The production process of the cylindrical lithium ion battery comprises the following steps: winding the prepared positive plate 3, the diaphragm 2 and the prepared negative plate 1 into a winding core 7; an expansion adhesive tape 4 with the width of 25mm and the length of 25mm is stuck on the right middle surface of the winding core 7, and the expansion adhesive tape 4 is stuck.
The embodiment has the following effects: observing whether the positive electrode lug 6 and the negative electrode lug 5 of the battery core are broken or not by using X-Ray every 1000 times of shaking of the battery core until the positive electrode lug 6 of the battery core is broken or the negative electrode lug 5 of the battery core is broken or shaking is 50000 times; after 50000 times of vibration, the positive electrode tab 6 and the negative electrode tab 5 are not fractured.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (4)
1. The utility model provides an improve cylinder lithium ion battery of electric core vibrations performance, includes to roll up the core, its characterized in that, roll up the core including mutual cover negative pole piece and the positive plate of putting, be located and be provided with the diaphragm between negative pole piece and the positive plate, the lower extreme of negative pole piece is provided with downwardly extending's negative pole utmost point ear, the upper end of positive plate is provided with the anodal utmost point ear of upwards extending, the surface coating that rolls up the core has the inflation sticky tape that is used for absorbing electrolyte.
2. The cylindrical lithium ion battery with improved cell vibration performance of claim 1, wherein the expansion adhesive tape is made of polyacrylate.
3. The cylindrical lithium ion battery with the improved cell vibration performance of claim 1 or 2, wherein the width of the expansion adhesive tape is 25mm, and the length of the expansion adhesive tape is 25 mm.
4. The cylindrical lithium ion battery with the improved cell vibration performance as claimed in claim 1 or 2, wherein the expansion adhesive tape is disposed right in the middle of the surface of the winding core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749131.8U CN209822798U (en) | 2019-05-23 | 2019-05-23 | Cylindrical lithium ion battery with improved battery cell vibration performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749131.8U CN209822798U (en) | 2019-05-23 | 2019-05-23 | Cylindrical lithium ion battery with improved battery cell vibration performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822798U true CN209822798U (en) | 2019-12-20 |
Family
ID=68883852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920749131.8U Active CN209822798U (en) | 2019-05-23 | 2019-05-23 | Cylindrical lithium ion battery with improved battery cell vibration performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209822798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11264683B2 (en) | 2020-04-30 | 2022-03-01 | Contemporary Amperex Technology Co., Limited | Electrode assembly, secondary battery, battery pack and device |
-
2019
- 2019-05-23 CN CN201920749131.8U patent/CN209822798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11264683B2 (en) | 2020-04-30 | 2022-03-01 | Contemporary Amperex Technology Co., Limited | Electrode assembly, secondary battery, battery pack and device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 198, line 319, Jingcheng Town, Nanjing County, Zhangzhou City, Fujian Province Patentee after: Zhangzhou Wanbao Energy Technology Co., Ltd Address before: 363601 Nanjing high tech Industrial Park, Nanjing County, Zhangzhou City, Fujian Province Patentee before: ZHANGZHOU WANBAO ENERGY TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |