Lithium ion battery with efficient heat radiation

Abstract

The invention provides a lithium ion battery with efficient heat radiation. The lithium ion battery comprises a shell and lithium ion battery units arranged in the shell, wherein each lithium ion battery unit comprises multiple cells arranged in a vertical stacking way; the shell comprises a left side cover and a right side cover, and the left side cover and the right side cover are respectively fixed to two sides of the lithium ion battery units to fix the lithium ion battery units; the left side cover and the right side cover are the same in structure to form a frame structure with an upper opening and a lower opening; the lithium ion battery also comprises a second heat radiation structure, wherein the second heat radiation structure comprises a plurality of heat radiation fins in surface contact with the cells; the heat radiation fins comprise metal layers, the tops of the metal layers are coated with thermal conductive silicone layers, the surfaces of the sides, needing to make contact with the other heat radiation fins, of the metal layers are coated with phase-change material layers, and the surfaces of the sides, not needing to make contact with the other heat radiation fins, of the metal layers are coated with graphite film layers.

Description

technical field [0001] The invention relates to the technical field of novel batteries, in particular to a lithium-ion battery with high-efficiency heat dissipation. Background technique [0002] In recent years, the development of new energy has attracted attention, especially the rapid development of lithium-ion batteries, which has become the focus of attention in the new energy industry. Therefore, the improvement of the safety and cycle life of lithium-ion batteries is directly related to whether lithium-ion batteries can be popularized and applied on a large scale, which is becoming more and more important and urgent. [0003] In the continuous development of lithium-ion battery technology, there are some technical difficulties. For example, the electrolyte is irreversibly consumed during the charging and discharging cycle of lithium-ion batteries. lead to safety issues such as fire and explosion. In particular, the use of lithium-ion battery components has a certain...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of low heat dissipation efficiency and complex assembly process of lithium-ion batteries in the prior art, the invention provides a lithium-ion battery

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