▎ 摘　　要

NOVELTY - Preparation of graphene-based graphite carbon composite electrode material involves thermally expanding a graphite oxide at 200-300 degrees C in closed reactor and obtaining graphene in-situ modified graphite carbon composite electrode. USE - Preparation of graphene-based graphite carbon composite electrode material used for lithium ion battery. ADVANTAGE - The graphene-based graphite carbon composite electrode material has lithium-storing ability, cycle life characteristics, coulombic efficiency, and charging and discharging characteristics, is uniformly doped with graphite, and is economically manufactured by simple method.