CN202259558U - Cylindrical lithium ion battery with aluminum shell - Google Patents
Cylindrical lithium ion battery with aluminum shell Download PDFInfo
- Publication number
- CN202259558U CN202259558U CN2011203323266U CN201120332326U CN202259558U CN 202259558 U CN202259558 U CN 202259558U CN 2011203323266 U CN2011203323266 U CN 2011203323266U CN 201120332326 U CN201120332326 U CN 201120332326U CN 202259558 U CN202259558 U CN 202259558U
- Authority
- CN
- China
- Prior art keywords
- safety valve
- thermosensitive
- lithium ion
- ion battery
- aluminum shell
- 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 - Fee Related
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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
Abstract
The utility model discloses a cylindrical lithium ion battery with an aluminum shell. The cylindrical lithium ion battery with the aluminum shell comprises an electrode core assembly and the aluminum shell, wherein the electrode core assembly consists of a positive electrode, a negative electrode and a diaphragm, the electrode core assembly and non-hydrolyzed electrolyte are encapsulated inside the shell; a thermosensitive groove safety valve is arranged on the top of the shell; a thermosensitive component is arranged at the bottom of the thermosensitive groove safety valve; and the thermosensitive component contacts the non-hydrolyzed electrolyte. The safety valve is a groove, so that when the inner temperature of the battery raises sharply due to accidental conditions such as short circuit, overcharge or high temperature environment or the like, the valve base of the safety valve can sense high temperature rapidly; the valve base is made of a solid thermosensitive material, so that when the temperature of the battery raises rapidly, the thermosensitive material can be melted instantly and the safety valve is opened and a large amount of generated combustible gas is released out so that accidents are avoided; and the solid thermosensitive material can be paraffine, or stearic acid, or thermosol or low-melting point ethylene or propylene copolymer.
Description
Technical field
The utility model belongs to technical field of electronic components, relates to a kind of aluminum shell column shape lithium ion battery.
Background technology
At present, column lithium ion battery is widely used in notebook computer, moves aspect equipment such as portable.During the influencing of abnormal factors such as receive short circuit, high heat at battery, overcharge, battery case inside is easy to generate gases at high pressure, causes battery case distortion even blast.Be assemblied in battery safety valve in the battery when cell internal pressure rises to abnormality, can open rapidly and gas is discharged, play the safeguard protection effect under this abnormal conditions.The present structural design of safety valve all is an explosion prevention function of realizing lithium ion battery according to pressure, and when battery was short-circuited, overcharges or place fortuitous event generation such as hot environment, the temperature of inside battery also can sharply change.If the condition of high temperature does not make that cell internal pressure increases to limit value, can not bring into play the safeguard protection effect at safety valve.Therefore design has the lithium ion battery of anti-high temperature safe protective effect, is a problem that is worth research.
The utility model content
The utility model technical problem to be solved provides a kind of aluminum shell column shape lithium ion battery, has the temperature Safety control valve, and safety factor was higher when battery was met accident, and battery safety is better.
The technical solution of utility model is following:
A kind of aluminum shell column shape lithium ion battery comprises electrode cores assembly and the aluminum enclosure be made up of positive pole, negative pole and barrier film; Said electrode cores assembly is encapsulated in the housing with non-hydrolysis electrolyte; Said case top is provided with heat-sensitive type groove safety valve.
The bottom of heat-sensitive type groove safety valve is provided with sensitive component, and sensitive component contacts with non-hydrolysis electrolyte.
Sensitive component adopts the solid thermo-sensitive material to process, and the solid thermo-sensitive material is paraffin, stearic acid, thermosol, low melting point ethene or propylene copolymer.
Beneficial effect:
The utility model aluminum shell column shape lithium ion battery has the temperature Safety control valve, and safety factor was higher when battery was met accident, and battery safety is better.
Description of drawings
Fig. 1 is the utility model aluminum shell column shape lithium ion battery sketch map.
At the bottom of the 1 groove safety valve valve done for the solid thermo-sensitive material, 2 is the groove safety valve among the figure, and 3 is aluminum enclosure.
Embodiment
Below will combine accompanying drawing and specific embodiment that the utility model is explained further details:
As shown in Figure 1, a kind of aluminum shell column shape lithium ion battery comprises electrode cores assembly and the aluminum enclosure be made up of positive pole, negative pole and barrier film; Said electrode cores assembly is encapsulated in the housing with non-hydrolysis electrolyte; Said case top is provided with heat-sensitive type groove safety valve.
The bottom of heat-sensitive type groove safety valve is provided with sensitive component, and sensitive component contacts with non-hydrolysis electrolyte.
Because safety valve is a groove, is short-circuited, overcharges at battery or when placing fortuitous events such as hot environment to make that the temperature of inside battery sharply raises, can sense high temperature rapidly at the bottom of the safety valve valve.Because by solid temperature-sensitive material manufacture, when battery heated up rapidly, thermo-sensitive material can in time melt and open the safety-valve at the bottom of the valve, will produce a large amount of fuel gas and discharge and avoid accident to take place.
The solid thermo-sensitive material can be paraffin, stearic acid, thermosol, low melting point ethene or propylene copolymer.
Claims (2)
1. an aluminum shell column shape lithium ion battery is characterized in that, comprises electrode cores assembly and the aluminum enclosure be made up of positive pole, negative pole and barrier film; Said electrode cores assembly is encapsulated in the housing with non-hydrolysis electrolyte; Said case top is provided with heat-sensitive type groove safety valve.
2. aluminum shell column shape lithium ion battery as claimed in claim 1 is characterized in that the bottom of heat-sensitive type groove safety valve is provided with sensitive component, and sensitive component contacts with non-hydrolysis electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203323266U CN202259558U (en) | 2011-09-05 | 2011-09-05 | Cylindrical lithium ion battery with aluminum shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203323266U CN202259558U (en) | 2011-09-05 | 2011-09-05 | Cylindrical lithium ion battery with aluminum shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259558U true CN202259558U (en) | 2012-05-30 |
Family
ID=46120753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203323266U Expired - Fee Related CN202259558U (en) | 2011-09-05 | 2011-09-05 | Cylindrical lithium ion battery with aluminum shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259558U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784433A (en) * | 2017-03-20 | 2017-05-31 | 上海与德科技有限公司 | Battery and battery protecting method |
| CN112490492A (en) * | 2020-11-27 | 2021-03-12 | 珠海冠宇动力电池有限公司 | Lithium ion battery and manufacturing method thereof |
| CN115513597A (en) * | 2022-10-11 | 2022-12-23 | 国网江苏省电力有限公司电力科学研究院 | Lithium iron phosphate battery |
| CN115513597B (en) * | 2022-10-11 | 2024-04-19 | 国网江苏省电力有限公司电力科学研究院 | Lithium iron phosphate battery |
-
2011
- 2011-09-05 CN CN2011203323266U patent/CN202259558U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784433A (en) * | 2017-03-20 | 2017-05-31 | 上海与德科技有限公司 | Battery and battery protecting method |
| CN112490492A (en) * | 2020-11-27 | 2021-03-12 | 珠海冠宇动力电池有限公司 | Lithium ion battery and manufacturing method thereof |
| CN115513597A (en) * | 2022-10-11 | 2022-12-23 | 国网江苏省电力有限公司电力科学研究院 | Lithium iron phosphate battery |
| CN115513597B (en) * | 2022-10-11 | 2024-04-19 | 国网江苏省电力有限公司电力科学研究院 | Lithium iron phosphate battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FENGHUANG NEW ENERGY (HUIZHOU) CO., LTD. Free format text: FORMER NAME: HUIZHOU HANPAI BATTERY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 516211 Guangdong District of Huiyang city in Huizhou province long autumn street gurabardha Tang Jing group ZILONG Industrial Park Patentee after: Fenghuang New Energy (Huizhou) Co., Ltd. Address before: 516211 Guangdong District of Huiyang city in Huizhou province long autumn street gurabardha Tang Jing group ZILONG Industrial Park Patentee before: HUIZHOU HANDPACK BATTERY TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20160905 |