Uniform temperature structure and device applied to energy storage device
A technology of energy storage device and temperature uniform film, which is applied in the direction of electrical components, electrochemical generators, secondary batteries, etc., can solve problems such as general effect, unsatisfactory temperature uniform effect, and impact on the compact structure of the battery pack, and achieve a balanced Effects of heating, preventive performance and safety, and reduction of temperature difference
Active Publication Date: 2019-12-03
浙江汉纳新材料科技有限公司
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Problems solved by technology
The solution at this stage is: (1) Install a micro fan in the battery pack for forced convection. Due to the limited space in the battery pack, the temperature uniformity effect is very unsatisfactory; (2) Add circulating fluid under the battery pack and then pass through the refrigerator Cooling, the effect is average and seriously affects the compactness of the battery pack
Method used
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[0025] In view of the deficiencies in the prior art, the inventor of this case has been able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principles will be further explained as follows.
[0026] One aspect of the embodiments of the present invention provides a type of temperature equalization structure applied to energy storage devices (such as lithium battery packs such as power lithium batteries), which includes:
[0027] A temperature equalizing film, which extends continuously along a selected direction on a selected plane or curved surface, and is sequentially in contact with at least a partial surface of each battery cell in the energy storage device;
[0028] Wherein, the temperature uniform film includes a heat conduction layer extending continuously along the selected direction.
[0029] Further, the temperature equalizing film is ultra-thin and flexi...
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Abstract
The present invention discloses a type of temperature equalization structure applied to an energy storage device. At least partial surfaces of the cells in the cell are in contact; the temperature uniform film includes a thermally conductive layer with excellent heat transfer performance, the thermally conductive layer extends continuously in the selected direction and can be closely connected to the energy storage device connect. The invention also discloses a device comprising the temperature uniformity structure. Due to the design of the present invention, the temperature difference between the cells in the energy storage device can be effectively reduced to achieve the effect of "uniform temperature", and the fast and balanced temperature of each cell in the energy storage device can be achieved in a low temperature environment. Heating can also dissipate the heat generated by each cell in the energy storage device in time to prevent the temperature of the cell from being too high and affecting its working performance and safety.
Description
technical field [0001] The invention particularly relates to a temperature equalizing structure applied to energy storage devices such as lithium battery packs, which belongs to the field of new energy sources. Background technique [0002] In recent years, electric vehicles have been rapidly developed under the promotion of governments and automobile manufacturers in various countries. Among them, pure electric vehicles have become an important development direction of electric vehicles because they can truly achieve "zero emission". Lithium-ion battery has become an ideal power source for a new generation of electric vehicles due to its excellent performance. It has the advantages of light weight, large energy storage, high power, no pollution, no secondary pollution, long life, and small self-discharge coefficient. An ideal car battery. [0003] Lithium-ion batteries will generate heat during use due to internal resistance, which will cause a large temperature rise in th...
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IPC IPC(8): H01M10/617H01M10/655H01M10/6551
CPCH01M10/617H01M10/655H01M10/6551Y02E60/10
Inventor 陈新江其他发明人请求不公开姓名
Owner 浙江汉纳新材料科技有限公司