▎ 摘　　要

NOVELTY - Graphene conductive agent comprises carbon black, nano-carbon tube and graphene in a mass ratio of 1-4:0.5-4.5:1-3.5. USE - The agent is useful in preparing conductive slurry and in lithium battery anode (claimed). ADVANTAGE - The agent: has good electrical conductivity, mechanical and thermal properties and improves the conductivity of lithium batteries. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the graphene conductive agent comprising (1) preparing 5-7 wt.% carbon black, carbon nano-tube and graphene, 0.5-1.3 wt.% surfactant and 80-93 wt.% solvent, (2) adding carbon black, nano-carbon tube and graphene into the solvent to obtain the pre-mixed liquid, (3) adding the interface active agent into the pre-mixed liquid, stirring for 30-60 minutes and (4) subjecting the obtained pre-mixed liquid for high pressure dispersion treatment, homogenizing and stirring for 3-6 hours and obtaining the graphene conductive agent with solid content of 4-7 wt.%; and (2) a method for preparing conductive paste with high conductivity comprising (a) weighing active substance, the graphene conductive agent and adhesive, (b) adding the adhesive into the solvent to form the glue solution with the concentration of 2-7%, (c) quickly stirring the glue solution until the adhesive is dissolved in the solvent, (d) adding the graphene conductive agent, quickly stirring, making it uniformly mixed with the glue solution, (e) adding the active material, quickly stirring, (f) slowly stirring, (g) vacuumizing to -0.9 mpa for defoaming and (h) measuring the viscosity and solid content of the prepared conductive slurry, so that the viscosity of the conductive slurry is 4000-6500 cps and the solid content is between 60-75%.