▎ 摘　　要

NOVELTY - The method involves preparing aqueous solution of graphene oxide by mixing graphene oxide with water, preparing graphene hydrogel by heat-treating the solution, immersing the graphene hydro-gel in the solution to obtain three-dimensional graphene, solidifying the foam by mixing the foam with a coagulant, and washing the solidified foam using a cleaning solution. USE - Method for manufacturing graphene electrode for supercapacitor (claimed). ADVANTAGE - The method enables preventing decrease in spacing between nanographenes, and increasing amount of ions adsorbed and speed of ion movement, thus reducing capacitance of the supercapacitor. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of a method for manufacturing graphene electrode for supercapacitor.(Drawing includes non-English language text). 100Supercapacitor 110Anode 120Cathode 130Anode Current Collector 140Cathode Current Collector