▎ 摘　　要

NOVELTY - The assembly has a polyimide cover film, an electrode material, a graphene material composite layer, and a back glue. The polyimide covering film, the electrode material, the graphene material composite layer, and the back glue are laminated in sequence and formed by pressing. The polyimide covering film and the electrode material are formed by processing a polyimide-based copper-clad film through an etching process. The current input terminal and the current output terminal in the conductive medium of the electrode material are made of metallic copper material. USE - Graphene heating film assembly for power batteries. ADVANTAGE - The graphene heating film assembly has simple structure, good stability, good conductivity, good flame retardant property, simple preparation method, convenient operation and control, stable quality, high productivity production cost and suitable for large scale industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of graphene heating film assembly suitable for power batteries.