▎ 摘　　要

NOVELTY - Preparation of high-conductive high-conductivity coiled material graphene film comprises mixing 2-15 pts. wt. graphene oxide, 0.1-15 pts. wt. graphene and 70-97.9 pts. wt. water and dispersing to obtain oligomeric graphene oxide-graphene aqueous slurry; coating and drying to thickness of 10-1000 m; trimming film prepared, stacking with the same width, winding on an inner bound graphite core, and winding layer of outer bound natural graphite coil to obtain a graphene oxide-graphene film; pre-treating at 300-1500 degrees C; putting high temperature furnace, gradient heating to 2300-3000 degrees C under vacuum or inert gas protection, and removing inner bound graphite cylinder core, outer bound graphite cylinder core and natural graphite coiled material to obtain low expansion low density coiled material graphene film; and rolling and calendering. USE - The method is used for preparation of high-conductive high-conductivity coiled material graphene film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for high-conductivity and high-conductivity coiled material graphene film.