▎ 摘　　要

NOVELTY - The preparation method of the graphene composite conductive paste involves: (a) preparing graphene oxide solution from graphite through strong acid oxidation by a Brodie method, then performing ultrasonic and ball milling on the graphene oxide solution, and drying the graphene oxide solution to obtain graphene powder; (b) stirring and mixing the graphene powder and a conductive agent at a speed of 500-800 revolutions per minute for 1-2 hours; (c) premixing a dispersant and a solvent to obtain a mixed solution; and (d) adding the mixture from the step (b) into the solution obtained from the step (c), fully mixing and stirring, and then adding into a homogenizing grinding dispersion machine for fine grinding and dispersion. The dispersant is polyvinylpyrrolidone, polyvinyl alcohol or sodium dodecyl benzene sulfonate. The solvent is N-methyl pyrrolidone, deionized water, ethanol or N-N dimethyl acetamide. USE - Preparation method of graphene composite conductive slurry used as electrode conductive agent in lithium-ion battery. ADVANTAGE - The method is simple and provides graphene composite conductive slurry with excellent product performance.