▎ 摘　　要

NOVELTY - The utility model claims a composite heat dissipation film with graphene of battery, comprising a shell, the shell is composed of two cylindrical structure of battery unit shell cross, each of battery unit shell is provided with a battery cavity and battery core fixed in the battery cavity. each battery cavity outer wall coating a ring of copper-graphene composite heat dissipation film, the copper-graphene composite radiating film section shape is hollow square structure; the copper-graphene composite heat dissipation film, comprising an outer layer copper foil, a radiating layer and inner layer copper foil. section shape of the outer layer copper foil is section shape of square structure, the inner layer copper foil is square structure, a radiating layer is set between the inner layer copper foil and an outer layer copper foil, said radiating layer comprises copper bracket and graphene filler, graphite filler is filled between the inner layer copper foil and an outer layer copper foil, capable of effectively cooling, which greatly improves the service life.