▎ 摘　　要

NOVELTY - The method involves slowly adding certain amount of deionized water to proportion of adding natural graphite, sodium nitrate and potassium permanganate. The small volume fraction of hydrogen peroxide and dilute hydrochloric acid is mixed with de-ionized water until the supernatant liquid. The dried graphite oxide is placed in the muffle furnace to obtain stripped graphite. The little concentrated sulfuric acid is added to the mixture and continuously stirred for one hour. The mixture is precipitated to obtain the graphene/manganese dioxide composite material. USE - Manganese dioxide/graphene composite structure preparation method for super capacitor electrode material. ADVANTAGE - The material manufacturing process is simplified. The manganese dioxide/graphene composite structure is good application prospect. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope image (SEM) of manganese dioxide/graphene.