▎ 摘　　要

NOVELTY - Activated graphene sheet produced by processing a layer of graphene sheet by adding sulfuric acid, nitric acid and potassium permanganate to the sheet, and activating the processed sheet by adding potassium hydroxide, is claimed. USE - Activated graphene sheet. ADVANTAGE - The activated graphene sheet can be easily and economically produced with improved conductivity, electrochemical properties and physical and chemical stability, and without impurities in an energy-efficient manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of producing activated graphene sheet.