▎ 摘　　要

NOVELTY - The graphene-carbon nanotube composite film material is prepared by uniformly mixing carbon nanotube ink and graphene oxide ink to obtain mixed solution of graphene-carbon nanotube, setting mixed solution on substrate, and drying to obtain graphene oxide-carbon nanotube composite film material; and heating graphene oxide-carbon nanotube mixed solution for joule, setting graphene oxide-carbon nanotube thin film material between two graphite roller groups oppositely, under action of motor, moving graphene oxide-carbon nanotube film material from one side of graphite roller group to other side of graphite roller group at set speed, connecting two graphite roller groups with power supply, passing one side of graphite roller group through graphene oxide-carbon nanotube film material between two graphite roller groups to other side of graphite roller group to form passage. USE - Graphene-carbon nano-tube composite film material preparation method. ADVANTAGE - The method enables preparation of graphene-carbon nanotube composite film material with excellent cycle stability and large magnification performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an application of graphene-carbon nano-tube composite film material and (2) a flexible aqueous aluminum battery using the graphene-carbon nanotube composite film material. DESCRIPTION OF DRAWING(S) - The drawing shows a process schematic diagram of the joule heating reduction graphene oxide-carbon nano-tube. (Drawing includes non-English language text).