Battery module heat dissipation device based on graphene auxiliary heat transfer

The utility model discloses a battery module heat dissipation device based on graphene auxiliary heat transfer. The battery box comprises a heat dissipation unit and a battery box body, each heat dissipation unit comprises a plurality of transversely arranged battery monomers, a heat pipe and a composite phase change material block; the evaporation sections of the heat pipes are in heat conductionconnection with the single batteries through the graphene heat dissipation coatings; wherein the graphene heat dissipation coating is smeared on the side surface, opposite to the heat pipe, of the battery monomer, a condensation section of the heat pipe is in heat conduction connection with the composite phase change material block, a heat dissipation assembly is arranged on the side wall, far away from the battery monomer, of the composite phase change material block, and a heat dissipation fan is arranged on the battery box body. Compared with the prior art, the single battery and the composite phase change materia