▎ 摘　　要

NOVELTY - Coating agent comprises 20-70 wt.% graphene and 30-80 wt.% polymer. The polymer includes conductive polymer and non-conductive polymer in weight ratio of 1-3:1. The non-conductive polymer is miscible with conductive polymer in any ratio. USE - The coating agent is useful in electrode active material and electrode current collector for battery electrode (claimed). ADVANTAGE - The coating agent reduces internal resistance, improves conductivity, promotes heat dissipation, improves battery charging/discharging performance, and has safety performance. The graphene has high radiating ability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for producing coating agent, comprising mixing and dispersing graphene and polymer in solvent, stirring to form slurry having a concentration of 0.05-0.2 g/ml, coating the slurry on the surface of the material to be coated, drying, obtaining a coating on the surface of the material; and #battery electrode comprising an electrode current collector and an electrode active material attached to the electrode current collector, where the electrode active material and the electrode current collector are provided with the coating agent.