▎ 摘　　要

NOVELTY - Manufacture of positive electrode sheet involves mixing binder, graphene powder, N-methylpyrrolidone and solvent, stirring, obtaining conductive graphene paste having solid content of 10-18%, coating resultant paste on current collector, obtaining coated current collector, mixing binder, N-methylpyrrolidone, conductive agent and positive electrode active material, coating resultant slurry on coated current collector, baking resultant product at 90-120 degrees C for 8-12 hours, obtaining semi-finished product, and rolling resultant material. USE - Manufacture of positive electrode sheet used for lithium-ion battery. ADVANTAGE - The lithium-ion battery provided with the positive electrode sheet has excellent durability, and reduced internal resistance and cell polarization. DETAILED DESCRIPTION - Manufacture of positive electrode sheet involves mixing binder, graphene powder, N-methylpyrrolidone and solvent, stirring, obtaining conductive graphene paste having solid content of 10-18%, coating resultant paste on current collector, obtaining coated current collector, mixing binder, N-methylpyrrolidone, conductive agent and positive electrode active material, coating resultant slurry on coated current collector, baking resultant product at 90-120 degrees C for 8-12 hours, obtaining semi-finished product, and rolling resultant material. The mass ratio of binder and graphene powder is 1.5-7:1.