CN204011491U - A kind of miniature cylinder lithium ion battery - Google Patents
A kind of miniature cylinder lithium ion battery Download PDFInfo
- Publication number
- CN204011491U CN204011491U CN201420306273.4U CN201420306273U CN204011491U CN 204011491 U CN204011491 U CN 204011491U CN 201420306273 U CN201420306273 U CN 201420306273U CN 204011491 U CN204011491 U CN 204011491U
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- China
- Prior art keywords
- battery
- plastic film
- lithium ion
- aluminum plastic
- 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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Abstract
The utility model discloses a kind of miniature cylinder lithium ion battery, comprise by anode pole piece, barrier film, cathode pole piece, barrier film stacks successively and is wound into columniform battery battery core, be packaged in battery battery core external aluminium plastic film, be filled in the electrolyte in battery battery core, it is characterized in that: described aluminum plastic film is arranged to two ends and is punctured into the cylindrical of flat, columniform upper and lower two ports pass through sealant sealing, the anode ear that is connected to anode pole piece is separately positioned on columniform top and bottom with the negative electrode lug that is connected to cathode pole piece, described anode ear and negative electrode lug are drawn after the flat structure doubling at aluminum plastic film two ends, the outer surface at described aluminum plastic film two ends is also provided with PVC film.The utility model adopts aluminum plastic film to realize the soft roll structure of lithium ion battery, overcome the positive and negative large defect in space of extremely occupying, alleviate accessory battery weight, can realize the microminiaturization of cylindrical lithium ion battery, saved inner space contributes to increase battery capacity, safer and practical.
Description
Technical field
The utility model belongs to battery technology field, is specifically related to a kind of miniature cylinder lithium ion battery.
Background technology
Lithium ion battery has that energy density is high, volume is little, lightweight, can repid discharge, the advantage such as wide, the non-environmental-pollution of good, the memory-less effect of high, the long service life of efficiency, security performance, operating temperature range, in people's life, be widely used.
But in some compact low power electronic installations, because lithium battery positive and negative terminal is fixed, area occupied is larger, more difficult realization is microminiaturized, and cell integrated capacity is low, and the environment for use of battery be there are certain requirements, and uses comparatively inconvenience.And the diameter of existing miniature cylinder lithium ion battery is between 7-8mm, cannot in diameter 5mm and less space, use.
Utility model content
The purpose of this utility model is to overcome existing weak point in above-mentioned prior art, realizes the microminiaturization of cylindrical lithium ion battery on the basis that guarantees lithium ion battery safety and capacity, and a kind of miniature cylinder lithium ion battery is provided.
For achieving the above object, the utility model will be achieved through the following technical solutions: a kind of miniature cylinder lithium ion battery, comprise by anode pole piece, barrier film, cathode pole piece, barrier film stacks successively and is wound into columniform battery battery core, be packaged in the aluminum plastic film of battery battery core outside, be filled in the electrolyte in battery battery core, it is characterized in that: described aluminum plastic film is arranged to two ends and is punctured into the cylindrical of flat, sealant sealing is passed through at columniform upper and lower two ends, the anode ear that is connected to anode pole piece is separately positioned on columniform top and bottom with the negative electrode lug that is connected to cathode pole piece, described anode ear and negative electrode lug are drawn after the flat structure doubling at aluminum plastic film two ends, the outer surface at described aluminum plastic film two ends is also provided with PVC film.
Adopt aluminum plastic film to realize the soft roll structure of lithium ion battery, when there is potential safety hazard, can not blast; The two ends of battery are set to flat and by sealant sealing, overcome the positive and negative large defect in space of extremely occupying, and alleviate accessory battery weight, can realize the microminiaturization of cylindrical lithium ion battery, and saved inner space contributes to increase battery capacity; Anode ear and negative electrode lug are drawn from two ends respectively, are convenient to install and use; The setting of lug to folded structure and PVC film, can improve the mechanical strength of battery structure.
As preferably, described anode ear and negative electrode lug are enclosed with tab in aluminum plastic film inner section.
As preferably, described PVC film is heat-shrinkable T bush.
The utility model has the following advantages and beneficial effect compared to existing technology:
The utility model adopts aluminum plastic film to realize the soft roll structure of lithium ion battery, when there is potential safety hazard, can not blast; The two ends of battery are set to flat and by sealant sealing, overcome the positive and negative large defect in space of extremely occupying, and alleviate accessory battery weight, can realize the microminiaturization of cylindrical lithium ion battery, and saved inner space contributes to increase battery capacity; Anode ear and negative electrode lug are drawn from two ends respectively, are convenient to install and use; The setting of lug to folded structure and PVC film, can improve the mechanical strength of battery structure.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of miniature cylinder lithium ion battery of the utility model.
Fig. 2 is the structure cutaway view of a kind of miniature cylinder lithium ion battery of the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment as depicted in figs. 1 and 2, a kind of miniature cylinder lithium ion battery, comprise by anode pole piece 11, barrier film 12, cathode pole piece 13, barrier film 12 stacks successively and is wound into columniform battery battery core 1, be packaged in the aluminum plastic film 2 of battery battery core 1 outside, be filled in the electrolyte 3 in battery battery core 1, it is characterized in that: described aluminum plastic film 2 is arranged to two ends and is punctured into the cylindrical of flat, columniform upper and lower two ends seal by fluid sealant 4, the anode ear 5 that is connected to anode pole piece 11 is separately positioned on columniform top and bottom with the negative electrode lug 6 that is connected to cathode pole piece 13, described anode ear 5 and negative electrode lug 6 are drawn after the flat structure doubling at aluminum plastic film 2 two ends, the outer surface at described aluminum plastic film 2 two ends is also provided with PVC film 7.
As preferably, described anode ear 5 and negative electrode lug 6 are enclosed with tab 8 in aluminum plastic film 2 inner section.
As preferably, described PVC film 7 is heat-shrinkable T bush.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (3)
1. a miniature cylinder lithium ion battery, comprise by anode pole piece, barrier film, cathode pole piece, barrier film stacks successively and is wound into columniform battery battery core, be packaged in the aluminum plastic film of battery battery core outside, be filled in the electrolyte in battery battery core, it is characterized in that: described aluminum plastic film is arranged to two ends and is punctured into the cylindrical of flat, sealant sealing is passed through at columniform upper and lower two ends, the anode ear that is connected to anode pole piece is separately positioned on columniform top and bottom with the negative electrode lug that is connected to cathode pole piece, described anode ear and negative electrode lug are drawn after the flat structure doubling at aluminum plastic film two ends, the outer surface at described aluminum plastic film two ends is also provided with PVC film.
2. a kind of miniature cylinder lithium ion battery according to claim 1, is characterized in that: described anode ear and negative electrode lug are enclosed with tab in aluminum plastic film inner section.
3. a kind of miniature cylinder lithium ion battery according to claim 1, is characterized in that: described PVC film is heat-shrinkable T bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306273.4U CN204011491U (en) | 2014-06-11 | 2014-06-11 | A kind of miniature cylinder lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306273.4U CN204011491U (en) | 2014-06-11 | 2014-06-11 | A kind of miniature cylinder lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011491U true CN204011491U (en) | 2014-12-10 |
Family
ID=52051449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306273.4U Expired - Fee Related CN204011491U (en) | 2014-06-11 | 2014-06-11 | A kind of miniature cylinder lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962284A (en) * | 2017-12-22 | 2019-07-02 | 宁德新能源科技有限公司 | The manufacturing method of electrochemical appliance and electrochemical appliance |
-
2014
- 2014-06-11 CN CN201420306273.4U patent/CN204011491U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962284A (en) * | 2017-12-22 | 2019-07-02 | 宁德新能源科技有限公司 | The manufacturing method of electrochemical appliance and electrochemical appliance |
| US11024908B2 (en) | 2017-12-22 | 2021-06-01 | Ningde Amperex Technology Limited | Electrochemical device and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |