▎ 摘　　要

NOVELTY - Manufacturing electrode, comprises (a) forming an oxidized graphene thin film by applying composition containing oxidized graphene on a substrate, and (b) irradiating the obtained graphene oxide film with light. Graphene oxide is reduced by irradiating light on the oxide graphene thin film when pores are formed in the oxide graphene thin film. USE - The method is useful in manufacturing electrode (claimed) for capacitor. ADVANTAGE - The method facilitates insertion or elimination of ions, and can be applied to capacitor to provide capacitor having high charging and discharging efficiency and high capacitance.