Heat conducting lithium-ion battery
A technology of lithium ion battery and battery shell, applied in the field of lithium ion battery, can solve the problems of too low and too high battery temperature
Pending Publication Date: 2019-06-07
长沙聚能充新能源有限公司
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- Application Information
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a thermally conductive lithium-ion battery, which can effectively solve problems such as excessively high or low battery temperature
Method used
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Embodiment Construction
[0062] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0063] The technical solution of the present invention is: a thermally conductive lithium-ion battery, including a battery case 1, a cell 2, a positive tab 3, and a negative tab 4, the positive tab and the negative tab are arranged on the same side or both sides of the main body of the cell, so The battery shell described above is covered on the outside of the battery cell, and the battery cell includes a positive electrode sheet, a separator, and a negative electrode sheet, and the separator is arranged between the negative electrode sheet and the positive electrode sheet, and is sequentially stacked or wound to form a battery cell, The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer coated on the negative electrode current collector, and the positive electrode sheet includes a positive e...
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The invention relates to heat conducting lithium-ion battery, which comprises a battery housing, an electric core, a positive pole lug and a negative pole lug, wherein the positive pole lug and the negative pole lug are arranged at one side or two sides of the electric core body, the battery housing coats outside the electric core, the electric core includes a positive pole piece, a diaphragm anda negative pole piece, the diaphragm is arranged between the negative pole piece and the positive pole piece, the positive pole piece, the diaphragm and the negative pole piece are laminated or woundin sequence to form the electric core, the negative pole piece includes a negative current collector and a negative active material layer coated on the negative current collector, and the positive pole piece includes a positive current collector and a positive active material layer coated on the positive current collector. The heat conducting lithium-ion battery is characterized in that the positive pole piece is provided with heat conducting and collecting bodies, and the heat conducting and collecting bodies are parts uncoated with the positive active material layer on the front or / and the back of the positive current collector. The heat conducting lithium-ion battery can effectively solve the problems that the battery temperature is too high or too low and the like.
Description
(1) Technical field [0001] The invention relates to a lithium ion battery, in particular to a heat conduction lithium ion battery. (2) Background technology [0002] Transportation brings double pressure on energy crisis and environmental pollution. It is urgent to vigorously develop and research efficient, clean and safe new energy vehicles to achieve energy saving and emission reduction. Lithium-ion batteries have become the best candidates for new energy vehicle power systems due to their advantages such as high specific energy, no pollution, and no memory effect. However, lithium-ion batteries are very sensitive to temperature. Only in a suitable temperature range can the battery pack be discharged efficiently and maintain good performance. High temperature will make the aging speed of lithium-ion battery faster, the thermal resistance will increase faster, the number of cycles will be reduced, the service life will be shortened, and even cause problems such as battery ...
Claims
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IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/654H01M10/6551H01M10/655H01M10/0525H01M10/058
CPCY02E60/10Y02P70/50
Inventor 邱伯谦邱则有
Owner 长沙聚能充新能源有限公司