▎ 摘　　要

NOVELTY - Preparing graphene from graphite, comprises (i) adding a certain concentration of conductive agent aqueous solution and flake graphite into a electrochemical reactor equipped with graphite or metal electrodes, applying direct current and flowing air with a certain flow rate into the reaction system and stripping for a certain time, and (ii) taking out material of the reaction system, filtering, washing, drying the obtained filter cake under vacuum and grinding to obtain final product. USE - The graphene is useful for preparing electrode material, graphene composite or graphene composite material when the number of graphene layer is 1-3 layers (claimed). ADVANTAGE - The method: has mild reaction conditions and simple preparation process; adopts inorganic salt aqueous solution as conductive solution; does not need to add other strong oxidizing acid or alkali solution; and is safe, environmentally friendly and suitable for industrial production. The layered graphite has excellent peeling effect and quality of graphene product.