▎ 摘　　要

NOVELTY - Metal oxide/graphene composite material involves mixing graphite, concentrated sulfuric acid and nitrate, stirring to obtain mixed solution, weighing potassium permanganate, stirring and adding in obtained mixed solution, adding distilled water to dilute solution and stirring the solution under ice water bath, adding hydrogen peroxide aqueous solution, stirring obtained solution, separating centrifugally and removing the obtained mixture in bottom sediment and upper layer clear liquid, collecting the intermediate light color product. USE - Metal oxide/graphene composite material in lithium ion battery anode materials, solar cells, gas sensors, light emitting diodes, laser diodes, supercapacitors, spintronic units, ultraviolet detectors, transistors and treating waste water (claimed). ADVANTAGE - The metal oxide/graphene composite material is simple and cost-effective. It is used as lithium ion battery cathode material for electrochemical performance. DETAILED DESCRIPTION - Metal oxide/graphene composite material involves mixing graphite, concentrated sulfuric acid and nitrate solution, stirring to obtain mixed solution, weighing potassium permanganate, stirring and adding in obtained mixed solution, adding distilled water to dilute solution and stirring the solution under ice water bath, adding hydrogen peroxide aqueous solution, stirring obtained solution, separating centrifugally and removing the obtained mixture in bottom sediment and upper layer clear liquid, collecting the intermediate light color product, washing repeatedly to neutral with distilled water, collecting and putting the metal simple substance in suspension, diluting, black solid product at room temperature for a period of time, collecting and washing, freezing and drying to obtain desire product.