▎ 摘　　要

NOVELTY - A graphene composite conductive agent preparing method involves taking a quantitative N-methylpyrrolidone as solvent into a stirring tube, setting the stirring speed to 800-1000 rpm and adding dispersing agent, weighing an appropriate amount of conductive agent such as graphene powder and conductive carbon black, adding to N-methylpyrrolidone solvent dissolved in a dispersing agent, setting a stirring speed of 500-600 rpm, so that the conductive powder dry powder is sufficiently wetted in the N-methylpyrrolidone solvent, adding the wetted mixture to a clean colloid mill and grinding 2-3 times, transferring the ground mixed liquid to a sand mill, setting the rotation speed of the sand mill, controlling the temperature of the sander and circulating sand for 1.5-2 hour to obtain the finished product. USE - Method for preparing graphene composite conductive agent for cathode material of lithium ion battery. ADVANTAGE - The method enables preparing graphene composite conductive agent with increased conductivity and enhanced analysis liquid and sedimentation phenomenon of graphene slurry.