▎ 摘　　要

NOVELTY - Producing graphene-powder composite, comprises (a) injecting graphene lumps and powder into a container, and (b) applying energy on physical medium by stirring the injected graphene lumps and powder at a predetermined rate, and separating graphene from layers consisting of graphene lumps and surrounding the entire surface of the powder to obtain graphene-powder composite. USE - The composite is useful for improving and replacing materials in fuel cell and secondary battery. ADVANTAGE - The method is simple. The composite has improved electrochemical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene-powder composite having carbon atoms and electrostatic force, and graphene surrounding the entire surface of the powder.