▎ 摘　　要

NOVELTY - Preparing composite electrode of electrochemical intercalation/graphene graphite comprises (1) using commercial graphite sheet with certain size as working electrode, where platinum sheet is counter electrode, and electrochemical working station as constant power supply, performing electrochemical intercalation in the sulfuric acid solution, cleaning with deionized water, obtaining the pre-inserted layer graphite the electrode, and (2) taking the pretreated layer as graphite electrodes prepared by the step (1) using platinum sheet as counter electrode and electrochemical work station as constant power source, performing the electrochemical intercalation and degreasing in the sulfate solution, and deionizing the water to obtain the graphene/graphite composite electrode. USE - The method is useful in electrochemical energy storage application e.g. super capacitor and ion battery. ADVANTAGE - The electrode material has excellent conductivity, high specific surface area and excellent electrochemical performance.