▎ 摘　　要

NOVELTY - A graphene oxide is dispersed into the solvent, dispersed graphene oxide is formed on transition metal oxide or transition metal hydroxide nanoparticles in the solvent phase and graphene oxide dispersed is reduced in the solvent, to obtain graphene composite. USE - Preparation of graphene composite used for electrode and electrochemical capacitor (all claimed). ADVANTAGE - The graphene composite is efficiently prepared with high energy density, and excellent electrical property and conductivity, and improved power outage capability, by simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene composite.