▎ 摘　　要

NOVELTY - Preparing a transition metal oxide/graphene composite comprises: (a) mixing a transition metal (M1) salt, water and a solution of graphite oxide dispersed in a polyol solvent; (b) preparing a transition metal (M1) oxide/graphene composite by applying microwaves to the mixed solution; and (c) preparing a transition metal (M1M2) oxide/graphene composite by applying microwaves to a solution obtained by mixing the transition metal (M1) oxide/graphene composite with a transition metal (M2) salt, where M1 and M2 are lithium, ruthenium, nickel, vanadium, cobalt, manganese, iron or titanium. USE - The method is useful for preparing a transition metal oxide/graphene composite, which is used as an anode material for lithium secondary batteries (all claimed). ADVANTAGE - The method provides the transition metal oxide/graphene composite in simplified manner with short manufacturing time, and with high electrochemical performances due to its excellent capacity and rate capability and long lifespan. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a lithium titanium oxide/graphene composite having a spinel structure, comprising graphene, and lithium titanium oxide having a nano-sized spinel structure stacked on a surface of the graphene; (2) an anode material for lithium secondary batteries comprising a lithium titanium oxide/graphene composite having a spinel structure; and (3) a lithium secondary battery comprising an electrode formed of an anode material.