CN202395048U - Metal casing and power battery protection structure - Google Patents
Metal casing and power battery protection structure Download PDFInfo
- Publication number
- CN202395048U CN202395048U CN2011203386797U CN201120338679U CN202395048U CN 202395048 U CN202395048 U CN 202395048U CN 2011203386797 U CN2011203386797 U CN 2011203386797U CN 201120338679 U CN201120338679 U CN 201120338679U CN 202395048 U CN202395048 U CN 202395048U
- Authority
- CN
- China
- Prior art keywords
- battery
- metal casing
- metal shell
- protection structure
- insulating barrier
- 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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- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a novel metal casing and power battery protection structure, in particular to a battery of a metal casing insulation protection method. By the aid of an insulation layer attached to the outer surface inside the metal casing of the battery, insulation when the metal casing and the battery are connected serially to form a high-voltage system can be guaranteed. Decomposition and capacitance effect of electrolyte inside a battery cell after high voltage is formed between the metal casing of the battery and electrodes and potential safety hazards when a serial and parallel connection battery system is cooled and radiated by liquid are effectively avoided. When a single battery is in short circuit inside, high-temperature and high-voltage puncture can be resisted by the insulation layer on the surface of the metal casing of the battery. Adjacent batteries can be protected from external short-circuit risks by isolating the damaged battery.
Description
Technical field
The utility model relates to a kind of novel metal housing electrokinetic cell protection structure, relates in particular to a kind of battery of metal shell insulation protection method.
Background technology
Along with the enhancing of development of modern society and environmental consciousness, as power supply, especially electric automobile and energy storage etc. need jumbo electrokinetic cell especially with battery in the more and more equipments selection.
Though high capacity cell can provide enough energy for electronic equipment; But because there is charged risk on battery metal shell surface when being connected into high-pressure system; Thereby cause between metal shell and electrode, forming high pressure, can make electric in-core portion's electrolyte decomposition and capacity effect; Go here and there in addition when also battery system adopts the liquid cools heat radiation because the liquid conducting also potential safety hazard can occur.
In view of this, necessary to because above-mentioned metal-back insulating properties makes the battery performance variation or causes dangerous problem, proposes a kind ofly can improve battery performance and safe battery metal shell and the battery that uses this metal-back.A kind of insulating method of battery metal shell also is provided.
The utility model content:
The purpose of the utility model is: to the deficiency of prior art existence, and a kind of metal shell electrokinetic cell protection structure is provided
To achieve these goals, the utility model adopts following technical scheme:
A kind of metal shell electrokinetic cell protection structure, it comprises: in the metal shell, the electric core, the said metal-back surfaces externally and internally that are arranged in the metal shell are provided with insulating barrier.
Said insulating barrier is for being coated with Teflon (PTFE).
Said insulating barrier is insulating passivation layer or insulated electro coating or the electrophoretic paint layer that insulate.
Said insulating barrier is 2-10um.
Said insulating barrier is the high-temperature insulation sheet.
With respect to existing technology; The utility model is through being attached to the insulating barrier of battery metal shell surfaces externally and internally; Can guarantee the insulating properties of metal shell battery when being connected into high-pressure system, the potential safety hazard the when decomposition that effectively prevents between battery metal housing and electrode to form electric in-core portion electrolyte behind the high pressure and capacity effect and string and battery system adopt liquid cools to dispel the heat.Guarantee that battery can not influence battery performance or security incident occur because of the battery metal surface of shell is charged in string and connection use.When short circuit appearred in single battery inside, battery metal shell surface insulation layer can be resisted the high temperature high electrical breakdown. and the external short circuit risk does not take place in isolated problem battery protection adjacent cell.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Please with reference to Fig. 1, a kind of metal shell electrokinetic cell is protected structure, and it comprises: in the metal shell 1, the electric core 2, said metal shell 1 surfaces externally and internally that are arranged in the metal shell 1 are provided with insulating barrier 3, and insulating barrier 3 is 5um.Insulating barrier 3 can guarantee the insulating properties of metal shell 1 battery when being connected into high-pressure system, the potential safety hazard the when decomposition that effectively prevents between battery metal housing 1 and electrode to form electric in-core portion electrolyte behind the high pressure and capacity effect and string and battery system adopt liquid cools to dispel the heat.Guarantee that battery can not influence battery performance or security incident occur because of battery metal housing 1 surface charging in string and connection use.
Said insulating barrier 3 is for being coated with Teflon (PTFE).Said insulating barrier forms one deck coatings layer on the metal shell surface, as is coated with Teflon (PTFE) through adopting spraying method.
Said insulating barrier 3 is insulating passivation layer or insulated electro coating or the electrophoretic paint layer that insulate, can be through adopting electrochemical method.
Said insulating barrier 3 adheres to the high-temperature insulation sheet through employing, forms high-temperature insulating layer in one deck on the metal shell surface, like the natural mica sheet.
Claims (3)
1. a metal shell electrokinetic cell is protected structure, and it comprises: in the metal shell, be arranged on the electric core in the metal shell, it is characterized in that: said metal-back surfaces externally and internally is provided with insulating barrier.
2. a kind of metal shell electrokinetic cell protection structure according to claim 1, it is characterized in that: said insulating barrier is insulating passivation layer or insulated electro coating or the electrophoretic paint layer that insulate.
3. a kind of metal shell electrokinetic cell protection structure according to claim 1, it is characterized in that: said insulating barrier is the high-temperature insulation sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203386797U CN202395048U (en) | 2011-09-05 | 2011-09-05 | Metal casing and power battery protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203386797U CN202395048U (en) | 2011-09-05 | 2011-09-05 | Metal casing and power battery protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395048U true CN202395048U (en) | 2012-08-22 |
Family
ID=46669952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203386797U Expired - Lifetime CN202395048U (en) | 2011-09-05 | 2011-09-05 | Metal casing and power battery protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202395048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9748552B2 (en) | 2012-12-25 | 2017-08-29 | Byd Company Limited | Battery having protection components |
| US9941505B2 (en) | 2012-12-25 | 2018-04-10 | Byd Company Limited | Battery |
-
2011
- 2011-09-05 CN CN2011203386797U patent/CN202395048U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9748552B2 (en) | 2012-12-25 | 2017-08-29 | Byd Company Limited | Battery having protection components |
| US9941505B2 (en) | 2012-12-25 | 2018-04-10 | Byd Company Limited | Battery |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |