Phase change cushion, energy storage temperature equalization module and battery

Abstract

The utility model provides a phase change buffer cushion, an energy storage temperature equalization module and a battery, and belongs to the technical field of new energy. The buffering isolation pad is arranged between the upper protection layer and the lower protection layer, the external impact resistance of the whole phase change buffering pad can be increased, meanwhile, the buffering isolation pad serves as a heat insulation medium, the heat insulation capacity of the phase change buffering pad is enhanced, and therefore the compression deformation capacity of the phase change buffering pad is improved. And the thermal management capability of the lithium battery system in the actual use process is improved. The phase-change buffer pads are arranged between every two adjacent battery cells, and the upper protective layer and the lower protective layer are made of phase-change materials, so that when the temperature of the battery cells is too high, the phase-change buffer pads can actively attract heat of the battery cells into the phase-change materials and absorb a large amount of heat, and the battery cells are kept working at the optimal temperature; and meanwhile, due to the existence of a heat transfer phenomenon, the phase change buffer pad avoids the phenomenon that the bottom temperature of the battery cell of the conventional module is low and the top temperature is high, so that the working temperature difference of the battery cell is improved, and the safety of the module is improved.