▎ 摘　　要

NOVELTY - Method for preparing graphene coated modified ternary nickel-cobalt-manganese electrode, involves (a) mixing ternary nickel-cobalt-manganese oxide powder, conductive additive and binding agent into slurry, coating the slurry on current collector, and drying to obtain the ternary nickel-cobalt-manganese electrode, (b) dissolving graphene in absolute ethanol to obtain a coating solution, (c) immersing the ternary nickel-cobalt-manganese electrode in the coating solution, stirring, coating and taking out to obtain a coated electrode, (d) adding the coated electrode to a blast drying oven, drying and again drying in a vacuum drying oven to obtain the electrode. USE - Method for preparing graphene coated modified ternary nickel-cobalt-manganese electrode. ADVANTAGE - The method adopts simple wet chemical method, suppresses the surface side reactions, stabilizes the surface structure of electrode, and improves the effect of electrode performance.