▎ 摘　　要

NOVELTY - Preparing copper foil coated with graphene film on surface involves using copper foil as a working electrode, using counter electrode and an electrolyte to jointly construct an electrochemical reaction system, where electrolyte includes a graphene oxide colloidal liquid. The graphene oxide colloidal liquid is a mixed liquid contains graphene oxide, cellulose, boric acid, and a dispersion solvent. The cyclic voltammetry is used to energize the electrochemical reaction system, and deposited a graphene film on the surface of the copper foil. USE - Method for preparing copper foil coated with graphene film on surface. ADVANTAGE - The method enables to prepare copper foil coated with graphene film on surface that reduces the sedimentation rate of graphene oxide in the electrolyte by changing the viscosity of the solution, and improves the particle dispersibility.