▎ 摘　　要

NOVELTY - Method of manufacturing multilayer composite electrode film, involves dissolving conductive ion salt (A), graphene oxide and conductive polymer monomer (A) in deionized water to obtain electrolytic solution (A), placing substrate in electrolytic solution (A), depositing conductive polymer/graphene composite film on substrate, dissolving conductive ion salt (B) and conductive polymer monomer (B) in deionized water to obtain electrolytic solution (B), placing substrate on which conductive polymer/graphene composite film is formed in electrolytic solution (B). USE - Method of manufacturing multilayer composite electrode film (claimed). ADVANTAGE - The multilayer composite electrode film is produced efficiently by a simple method at low cost, while shortening production time. The multilayer composite electrode film has high capacitance and excellent cycle stability. DETAILED DESCRIPTION - The method of manufacturing multilayer composite electrode film, involves dissolving conductive ion salt (A), graphene oxide and conductive polymer monomer (A) in deionized water to obtain electrolytic solution (A), placing a substrate in the electrolytic solution (A), depositing a conductive polymer/graphene composite film on the substrate by electrochemical deposition, dissolving conductive ion salt (B) and conductive polymer monomer (B) in deionized water to obtain electrolytic solution (B), placing the substrate on which conductive polymer/graphene composite film is formed in the electrolytic solution (B) for electrochemical polymerization, forming a conductive polymer layer on conductive polymer/graphene composite film and obtaining conductive polymer/graphene/conductive polymer composite film, dispersing oxidized graphene in a buffer solution and obtaining electrolytic solution (C), placing the substrate on which conductive polymer/graphene/conductive polymer composite film is formed in the electrolytic solution (C) for electrochemical reduction, and forming a graphene layer on the conductive polymer/graphene/conductive polymer composite film, and obtaining conductive polymer/graphene/conductive polymer/graphene multilayer composite film.