▎ 摘　　要

NOVELTY - The ring element graphene oxide film has a reduction graphene oxide film, where a graphene film is laminated on the reduction graphene oxide film. The pores are provided between the reduction graphene oxide film and the graphene film. A metal active material is laminated on a surface, which is exposed in an outer surface and a pore of a co-extruded film. The metal active material is silicone or germanium, where the reduction graphene oxide film and the graphene film are alternated and laminated. USE - Ring element graphene oxide film for an energy storing element (Claimed), such as a sodium secondary battery. ADVANTAGE - The reduction graphene oxide film is provided, where a graphene film is laminated on the reduction graphene oxide film, and hence ensures improving the improves the ion conductivity of a ring element graphene oxide film in an effective manner and improves the electrode capacity, and also improves the mechanical property of the co-extruded film in a reliable manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing a ring element graphene oxide film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an energy storing element. Cathode collector (110) Negative active material layer (120) Separation film (130) Anode active material layer (140) Anode collector (150) Electrolyte (160)