The aerogel heat insulation pad is used as the heat insulation material between the electric cells in the new energy PACK battery pack. When a single electric cell is out of control of heat, it can effectively isolate the diffusion of the surrounding electric cells and ensure the normal operation of the surrounding electric cells; It also has the function of insulation and buffering. Aerogel is also a kind of heat insulation material favored by many automobile enterprises due to its light weight, strong heat insulation and strong bearing capacity.