▎ 摘　　要

NOVELTY - A cubic particle composite electrode material comprises manganese oxide monomer coated on graphene-like carbon network layer, where graphene carbon network layer carbon shells are coated with graphene. USE - Cubic particle composite electrode material used for preparing lithium ion battery (claimed). ADVANTAGE - The material has no added conductive agent and simple production technique, saves cost, is clean green and environment-friendly, and has high discharge specific capacity and excellent cyclical stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite electrode material comprising preparing manganese-containing base and carbon-containing precursor gel, drying, and carbonizing.