▎ 摘　　要

NOVELTY - Material i.e. manganese oxide/graphene oxide complex (I) are new. The amount of graphite oxide is 10-20%. USE - (I) are useful as cathode in lithium ion battery (claimed). ADVANTAGE - (I) have excellent room temperature cycling stability, rate performance and low cost; utilize natural raw materials; and are environmentally friendly. DETAILED DESCRIPTION - Material i.e. manganese oxide/graphene oxide complex of formula MnO/RGO (I) are new. The amount of graphite oxide is 10-20%. R = not defined. An INDEPENDENT CLAIM is also included for preparation of (I).