▎ 摘　　要

NOVELTY - A graphene/carbon nanoporous fiber comprises oxidized graphite, polyacrylonitrile and pore-forming agent in mass ratio (1-3):1:(0.2-0.5). The porous fibrous structure is formed from material volatilized and carbonized at high temperature through pores. USE - Graphene/carbon nanoporous fiber used as electrode material of super-capacitor, fuel cell, lithium ion battery and solar battery (claimed). ADVANTAGE - The graphene/carbon nanoporous fiber is prepared using simple process, and is suitable for large-scale production. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation method of graphene/carbon nanoporous fiber; and (2) use of graphene/carbon nanoporous fiber as electrode material of super-capacitor, fuel cell, lithium ion battery and solar battery.