▎ 摘　　要

NOVELTY - A graphene composite material has graphite sheet in which interlayer distance between graphene is opened by swelling layered graphite, and an insulating material layer which is intercalated by the graphene interlayer of the graphite sheet and has reactivity in graphene. USE - Graphene composite material. ADVANTAGE - The graphene composite material has excellent insulation property in thickness direction. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of graphene composite sheet, which involves obtaining expanded graphite, and intercalating the insulating material having reactivity with graphene to interlayer of expanded graphite.