Lithium-ion power battery
A power battery, lithium-ion technology, applied in the field of lithium-ion power batteries, 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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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a lithium-ion power battery, which can effectively solve the problems of excessively high or low battery temperature
Method used
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Embodiment Construction
[0063] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0064] The technical solution of the present invention is: a lithium-ion power battery, including an electric core, an organic hard shell for accommodating the electric core, an electrolyte injected into the organic hard shell, and a battery fixedly connected to the organic hard shell. Top cover; the battery core includes a positive electrode sheet, a negative electrode sheet and a separator spaced between the positive electrode sheet and the negative electrode sheet, which are sequentially stacked or wound to form a battery cell; the positive electrode sheet is provided with a positive electrode tab The negative electrode sheet is provided with a negative pole tab; the top cover is provided with a positive pole pole electrically connected to the positive pole tab, and a negative pole pole electrically connected to the negative pole tab; the negative pole piec...
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The invention relates to a lithium-ion power battery, which comprises an electric core, an organic hard housing used for accommodating the electric core, an electrolyte injected into the organic hardhousing and a top cover fixedly connected to the organic hard housing. The positive pole piece is provided with a positive pole lug; the negative pole piece is provided with a negative pole lug; and the top cover is provided with a positive pole column electrically connected with the positive pole lug and a negative pole column electrically connected with the negative pole lug. The lithium-ion power battery is characterized in that the positive pole piece is provided with heat conducting and collecting bodies, the heat conducting and collecting bodies are parts uncoated with a positive activematerial layer on the front or / and the back of a positive current collector, at least two heat conducting and collecting bodies are vertically laminated in the same area to form a heat flow concentration channel for heat conduction and collection, the heat energy constituting the electric core gets in and out of the heat flow concentration channel, the heat flow concentration channel is laminatedor connected with a fluid flow channel component, and the inlet axis and outlet axis of the fluid flow channel are set on the same axis of the housing. The lithium-ion power 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 lithium ion power 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 thermal ru...
Claims
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IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/654H01M10/6551H01M10/655H01M10/6556H01M10/0525H01M10/058
CPCY02E60/10Y02P70/50
Inventor 邱伯谦邱则有
Owner 长沙聚能充新能源有限公司