▎ 摘　　要

NOVELTY - The method involves providing a metal foil (10). A graphene layer (20, 22, 24) is formed on the metal foil by forming a coating on the metal foil and subjecting the coating to drying process for obtaining the graphene layer. The graphene layer is subjected to a dry-process surface modification treatment by doping hetero-atoms (23) into a graphene layer surface (21), where a portion, which is not doped with the hetero-atoms of the graphene layer is defined as a non-doped graphene layer, where the coating is formed from graphene-containing composition. USE - Method for fabricating a graphene electrode for use in energy storage devices of electric vehicles. ADVANTAGE - The method enables introducing carrier gas into a reactor of plasma modification process to stabilize the plasma modification process. The method enables subjecting the graphene layer surface to a dry-process surface modification treatment such that the graphene electrode is provided with high capacity, high carrier mobility and low irreversible capacity. DETAILED DESCRIPTION - The hetero-atoms comprise nitrogen atoms, phosphorus atoms and boron atoms. The graphene-containing composition comprises graphene, binder i.e. aqueous-based binder/organic-based binder, and conducting agent comprising graphite and carbon black. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a graphene electrode. Metal foil (10) Graphene layers (20, 22, 24) Graphene layer surface (21) Hetero-atoms (23) Graphene electrode (100)