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|1. (WO2018099396) HEAT ABSORPTION AND HEAT INSULATION STRUCTURE OF BATTERY MODULE|
|Applicants:||BEIJING KEY POWER TECHNOLOGIES CO., LTD.
|Title:||HEAT ABSORPTION AND HEAT INSULATION STRUCTURE OF BATTERY MODULE|
Provided by the present invention are a heat absorption and heat insulation structure of a battery module, comprising: a packaging material, having a first cavity therein; and a heat absorbing agent, disposed in the first cavity, the heat absorbing agent being capable of absorbing heat to generate gas. In applying the technical solution of the present invention, after the heat absorption and heat insulation structure is disposed between two adjacent battery cells, if one battery cell experiences thermal runaway, the heat generated by said battery cell may be conducted to the heat absorbing agent of the packaging material; the heat absorbing agent will vaporize after absorbing the heat, and the generated gas may carry a large amount of heat to the outside of the battery module, thereby preventing the damaged battery cell from transferring a large amount of heat to the adjacent battery cell and causing further damage. Therefore, by means of the technical solution of the present invention, heat conduction between adjacent battery cells may be reduced, and diffusion of thermal runaway may be avoided, thereby guaranteeing the safety of the battery module.