▎ 摘　　要

NOVELTY - Graphene-carbon nano fiber composite material, is claimed. The graphene is grown on the surface of the carbon nano-fiber, and the graphene is connected with the carbon nano fiber by sp2 carbon. USE - Used as a graphene-carbon nano fiber composite material. ADVANTAGE - The method: is simple, without metal catalyst or plasma auxiliary, and the raw material source is wide. The graphene-carbon nano fiber composite material has excellent conductivity and mechanical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene-carbon nanofiber composite material comprising (1) forming carbon defects on the carbon nanofibers, and (2) growing graphene on the carbon defect.