Graphene assisted heat dissipation battery

The invention discloses a graphene assisted heat dissipation battery. The battery comprises a shell, a battery core and tabs, wherein the battery core is arranged in the shell, the battery core is connected with the tabs, the tabs extends out of a hole reserved in the shell and serve as a positive electrode and a negative electrode of the battery, the battery core consists of a positive pole piece, a negative pole piece, an ion permeable film and an insulating film, the battery core consists of an insulating film, a positive pole piece, a diaphragm and a negative pole piece and is manufacturedby the lamination or winding process, one side, back to the diaphragm, of the positive pole piece of the battery core is coated with a graphene film, a side, back to the diaphragm, of the negative pole piece is coated with a graphene film, thickness of the graphene film is 300-500 nm, and a heat conductivity coefficient of the graphene film is 4000-5000 WmK. The preparation method of thegraphene film comprises st