▎ 摘　　要

NOVELTY - A graphene composite comprises positive electrode collector, graphene conductive coating, positive electrode active material coating, diaphragm, negative electrode active material coating, and negative electrode current collector from top to bottom. USE - Graphene composite. ADVANTAGE - The graphene composite has increased free carrier density, and at the same time it tightly combines with positive and negative electrode coating materials with graphene through composite material, which improves conductive performance and stability, while also improving the electric capacity of the battery, thus prolongs the service life of the battery.