▎ 摘　　要

NOVELTY - A graphene-coated lithium-nickel manganate anode material comprises a core, and a transition metal atomic layer and a graphene superimposed layer which are sequentially coated on the surface of the core. The core is lithium-nickel manganate anode material. USE - Graphene-coated lithium-nickel manganate anode material. ADVANTAGE - The graphene-coated lithium-nickel manganate anode material is economically prepared in large scale, with excellent cycle performance and rate performance, without introducing other impurity elements, by simple process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the anode material, which involves introducing a mixed gas formed by mixing reducing gas and carbon source gas, into the lithium-nickel manganate anode material, heating, increasing the heating temperature, adjusting the flow rate of the mixed gas, and continuously reacting.