▎ 摘　　要

NOVELTY - A graphene/copper manganite composite electrode material comprises graphene and 5-100 nm copper manganite nanoparticles. USE - Graphene/copper manganite composite electrode material used for lithium ion battery electrode material (claimed). ADVANTAGE - The product has improved specific capacity and multiplying power performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene/copper manganite composite electrode material comprising dissolving polyvinylpyrrolidone in ethylene glycol, adding copper acetate and manganese acetate, stirring, condensing and refluxing, cooling, centrifuging, taking solid, washing to obtain copper manganite precursor, calcining under air atmosphere, cooling to obtain copper manganite, adding graphene oxide and ethylene glycol, ultrasonicating, condensing and refluxing, adding hydrazine hydrate, condensing and refluxing, cooling, centrifuging, taking solid, washing, and drying.