CN201904400U - Internal short-circuit prevention structure for cylindrical lithium ion battery - Google Patents
Internal short-circuit prevention structure for cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN201904400U CN201904400U CN2010206693006U CN201020669300U CN201904400U CN 201904400 U CN201904400 U CN 201904400U CN 2010206693006 U CN2010206693006 U CN 2010206693006U CN 201020669300 U CN201020669300 U CN 201020669300U CN 201904400 U CN201904400 U CN 201904400U
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- CN
- China
- Prior art keywords
- battery
- lithium ion
- internal short
- circuit prevention
- cylindrical lithium
- 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.)
- Expired - Lifetime
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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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- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides an internal short-circuit prevention structure for a cylindrical lithium ion battery. The internal short-circuit prevention structure comprises a battery case wall and a positive tab, wherein a battery cover is arranged at the top of the battery case wall; an internal rolling groove is formed on the lower side surface of the battery cover; and an insulation washer for isolating the shell at the internal rolling groove of the battery from the positive tab is additionally arranged at the internal rolling groove, so as to prevent the positive tab from touching the battery case wall to cause internal short-circuits. The internal short-circuit prevention structure for the cylindrical lithium ion battery adopts the structural design with internal short-circuit prevention effect to prevent the positive tab from short circuits when the battery vibrates or falls, thereby ensuring the stable service performance of the battery and playing a crucial role on the safety performance and long-term service performance of the battery.
Description
Technical field
The utility model relates to cylindrical lithium ion battery safe practice field, the inner anti-short circuit structure of especially a kind of cylindrical lithium ion battery.
Background technology
At present, lithium ion battery is advantage such as high and in light weight because of environmental protection, specific energy, and range of application is more and more widely almost all used the energy type lithium ion battery on notebook computer.Along with its application and quantity more and more widely, it is even more important that battery security seems.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of cylindrical lithium ion battery inner anti-short circuit structure.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The inner anti-short circuit structure of a kind of cylindrical lithium ion battery, comprise battery shell wall and anode ear, the top of described battery shell wall is provided with battery cover, the downside of battery cover is inner slot rolling, adds the insulation cushion of keeping apart between being used for inside battery slot rolling place's housing and anode ear at inner slot rolling place.
The utility model structure has following beneficial effect:
The inner anti-short circuit structure of above-mentioned cylindrical lithium ion battery, adopted the structural design of anti-internal short-circuit, make battery in vibration, prevent the anode ear short circuit when falling, thereby guaranteed the stable of battery serviceability, the security performance and the long-term serviceability of battery played crucial effects.
Description of drawings
Fig. 1 is the structural representation of the inner anti-short circuit structure of cylindrical lithium ion battery described in the utility model.
Among the figure: 1-battery shell wall 2-anode ear 3-battery cover 4-insulation cushion
Embodiment
For further specifying the utility model, existing conjunction with figs. is described in detail:
As shown in Figure 1, the inner anti-short circuit structure of described cylindrical lithium ion battery, comprise battery shell wall 1 and anode ear 2, the top of described battery shell wall 1 is provided with battery cover 3, the downside of battery cover 3 is inner slot rolling, add the insulation cushion 4 of keeping apart between being used for inside battery slot rolling place's housing and anode ear 2 at inner slot rolling place, play preventing that positive plate 2 touching battery shell walls 1 from causing the effect of internal short-circuit.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (1)
1. the inner anti-short circuit of cylindrical lithium ion battery is constructed, comprise battery shell wall and anode ear, the top of described battery shell wall is provided with battery cover, the downside of battery cover is inner slot rolling, it is characterized in that: add the insulation cushion of keeping apart between being used for inside battery slot rolling place's housing and anode ear at inner slot rolling place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206693006U CN201904400U (en) | 2010-12-20 | 2010-12-20 | Internal short-circuit prevention structure for cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206693006U CN201904400U (en) | 2010-12-20 | 2010-12-20 | Internal short-circuit prevention structure for cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904400U true CN201904400U (en) | 2011-07-20 |
Family
ID=44274993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206693006U Expired - Lifetime CN201904400U (en) | 2010-12-20 | 2010-12-20 | Internal short-circuit prevention structure for cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411838A (en) * | 2018-11-02 | 2019-03-01 | 蒋永兴 | A kind of safety battery with self-recovery fuse overload current overheating protection |
| CN111954940A (en) * | 2018-04-06 | 2020-11-17 | 三洋电机株式会社 | Battery with a battery cell |
-
2010
- 2010-12-20 CN CN2010206693006U patent/CN201904400U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954940A (en) * | 2018-04-06 | 2020-11-17 | 三洋电机株式会社 | Battery with a battery cell |
| CN109411838A (en) * | 2018-11-02 | 2019-03-01 | 蒋永兴 | A kind of safety battery with self-recovery fuse overload current overheating protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |