▎ 摘　　要

NOVELTY - A lithium-rich manganese based solid solution/graphene composite material comprises lithium-rich manganese based solid solution structure, and layered graphene layers dispersed in the lithium-rich manganese based solid solution in the form of particles. USE - Lithium-rich manganese based solid solution/graphene composite material for use as anode material of lithium ion battery (claimed). ADVANTAGE - The composite material has better electrical conductivity, and can be prepared in a simple, inexpensive and effective manner. DETAILED DESCRIPTION - A lithium-rich manganese based solid solution/graphene composite material comprises lithium-rich manganese based solid solution structure ((xLi2MnO3)(1-x)LiMO2) and layered graphene layers dispersed in the lithium-rich manganese based solid solution in the form of particles, where M is nickel, cobalt, manganese, chromium, nickel-cobalt, nickel-manganese, nickel-cobalt-manganese, iron and ruthenium, x is more than 0, but less than 1. An INDEPENDENT CLAIM is also included for a method for preparing a lithium-rich manganese based solid solution/graphene composite material.