▎ 摘　　要

NOVELTY - Graphene-doped-polyacrylonitrile-mesoporous activated carbon fibers comprise polyacrylonitrile-mesoporous activated carbon fibers as mainframe doped with graphene. USE - Graphene-doped-polyacrylonitrile-mesoporous activated carbon fibers used as supercapacitor electrode. ADVANTAGE - The graphene-doped-polyacrylonitrile-mesoporous activated carbon fibers have excellent electroconductivity and porosity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene-doped-polyacrylonitrile-mesoporous activated carbon fibers, which involves using graphene, solvent, pore-forming agent, organic compound, activating agent and polyacrylonitrile.