▎ 摘　　要

NOVELTY - Graphene electrode comprises a composite in which a cationic polymer electrolyte is deposited on a graphene-based material in a layer-by-layer manner or a graphene-based material and a cationic polymer electrolyte are mixed in the form of a composite; and metal nanoparticles deposited on the composite. The graphene-based materials include reduced graphite oxide, laser induced graphene and/or graphene produced by heat treatment or chemical exfoliation. USE - Used as graphene electrode. ADVANTAGE - The method is simple, inexpensive, and easy to reproduce and mass-produce. The graphene electrode exhibits excellent material performance can be manufactured by allowing metal nanoparticles to be electrostatically strongly bound and evenly distributed; and reduces anions of metal nanoparticles through a reducing agent. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing graphene electrode.