▎ 摘　　要

NOVELTY - The method comprises providing a substrate having a surface, a graphene film (124) and a plastic support film, laminating the graphene film, which is disposed on the surface of the substrate and the plastic support film to form a substrate graphene-plastic support film composite structure, and removing the substrate by a solution corrosion method or an etching method. The graphene film is fabricated by a chemical vapor deposition method, a mechanical pressing method, or tearing from an oriented graphite using a tape. USE - The method is useful for making a current collector (claimed), which is useful as a channel for transferring electrons formed in electrochemical reactions of the electrochemical cells to an external circuit to provide electric currents, where the electrochemical cells include lithium ion batteries and supercapacitor or nickel-cadmium batteries. ADVANTAGE - The method is capable of efficiently making the current collector with reduced weight, excellent corrosion resistance and increased conductivity and electrochemical stability thus improving cycling performance, energy density and lifespan of the electrochemical cells. DETAILED DESCRIPTION - The method comprises providing a substrate having a surface, a graphene film (124) and a plastic support film, laminating the graphene film, which is disposed on the surface of the substrate and the plastic support film to form a substrate graphene-plastic support film composite structure, and removing the substrate by a solution corrosion method or an etching method. The graphene film is fabricated by a chemical vapor deposition method, a mechanical pressing method, or tearing from an oriented graphite using a tape. The mechanical pressing method for making the graphene film comprises: providing a graphite block and cutting the graphite block to form a clean cleavage surface; disposing the graphite block having the clean cleavage surface on the substrate; applying a pressure of 98-196 Pa on the graphite block for a predetermined period of time or 5-10 minutes; and removing the graphite block from the substrate to form the graphene film on the substrate. The step of laminating the graphene film comprises: overlapping the graphene film disposed on the surface of the substrate and the plastic support film, where the graphene film is in contact with the plastic support film; pressing the graphene film disposed on the surface of the substrate and the plastic support film by a pressure; and directly adhering the plastic support film to the graphene film. The graphene film and the plastic support film are combined by intermolecular forces in the substrate-graphene-plastic support film composite structure. The graphene film is a continuous and integrated graphene sheet. The plastic support film is a sheet shaped film, network shaped film, or porous shaped film. A thickness of the plastic support film is 1-200 mu m. DESCRIPTION OF DRAWING(S) - The diagram shows a schematic top view of a current collector. Current collector (12) Connector tab (123) Graphene film. (124)