▎ 摘　　要

NOVELTY - Method for electrochemically preparing graphene involves (s1) placing a base material on a nickel net loaded with oxygen evolution catalyst, and wrapping and palletizing the nickel net and base material by a titanium net to form positive electrode, (s2) inserting the positive electrode and negative electrode in electrolyte to form electrolytic system, applying voltage, and stripping the electrochemical positive electrode to obtain a graphene positive electrode, and (s3) soaking the graphene positive electrode in organic solvent to obtain a turbid liquid containing graphene, and purifying the turbid liquid containing graphene. The base material comprises crystalline flake graphite, polytetrafluoroethylene and ethanol. USE - Method for electrochemically preparing graphene used in energy sources. ADVANTAGE - The method for electrochemically preparing graphene can generate gas and a concentrated acid environment automatically in the positive electrolysis process, and graphene with large transverse size, few layers and thin sheets can be obtained. The method is simple and reliable, environmentally friendly, and more suitable for industrial production.