▎ 摘　　要

NOVELTY - Preparation of graphene sheet modified spinel-type lithium manganate or alpha-type manganese dioxide electrode involves weighing manganese-containing electrode material, conductive agent and polyvinylidene fluoride binder powder in a mass ratio of 80:15:5, adding conductive agent, preparing raw material into slurry, applying the slurry on an aluminum foil current collector and nickel mesh current collector, and rolling. The conductive agent is graphene or mixture of graphene and acetylene black conductive agent. The slurry contains lithium manganese oxide and manganese oxide (( alpha )-MnO2). USE - Preparation of graphene sheet modified spinel-type lithium manganate or alpha-type manganese dioxide electrode (claimed). ADVANTAGE - The method provides graphene sheet modified spinel-type lithium manganate or alpha-type manganese dioxide electrode having improved conductivity and velocity performance, by simple process.