▎ 摘　　要

NOVELTY - The film comprises a double membrane comprising a graphene oxide film and/or a conductive polymer film. The graphene oxide is an electrochemically reduced graphene oxide. The double membrane is prepared by layer-by-layer deposition method. The double membrane further comprises a substrate. USE - The film is useful in a super capacitor (claimed). ADVANTAGE - The film increases the energy density, power density and energy storage capacity of the super capacitor. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing a film.