▎ 摘　　要

NOVELTY - Graphene composite film is formed by stacking multiple graphene sheets, where pores are formed between the graphene sheets and the graphene sheets. The surface of the graphene sheet is modified with a conductive polymer. The stack is a loose stack. The pores are graphene films, which are formed due to loose stacking. The conductive polymer is a hydrophilic conductive polymer. USE - Graphene composite film for use in an energy storage device (claimed). ADVANTAGE - The graphene composite film has certain flexibility and tensile properties, and good mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene composite film, which involves: (A) mixing the conductive polymer aqueous solution and the organic solvent to obtain a mixed solution, adding graphene and mixing again to obtain a slurry; and (B) pressing the slurry, and then annealing to obtain a graphene composite film.