▎ 摘 要
NOVELTY - A graphene oxide is dispersed in hydrophilic solvent, dried by rotating and spin-dehydrated, to obtain graphene film. USE - Manufacture of graphene film used for electrode material (both claimed). ADVANTAGE - The method economically provides graphene film having excellent mechanical characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene film; and (2) electrode material.