▎ 摘　　要

NOVELTY - A composite conductive agent preparation method involves uniformly mixing chromium nitrate, 2-aminoterephthalic acid and graphene oxide powder, dispersing in water, dispersing obtained powder in water to obtain mixture, heat-treating the mixture to obtain product A, cooling, filtering, purifying, drying to obtain modified graphene oxide compound, calcining at high temperature under protective atmosphere, cooling to obtain intermediate powder B and purifying the intermediate powder B. USE - Method for preparing composite conductive agent that is utilized in active material for lithium-ion battery (claimed). ADVANTAGE - The method enables preparing composite conductive agent with specific surface area of 100-200 m2/g, high porosity and surface energy, particle size of 10-30 mu m, oil absorption rate of 150-200 (100 ml/100 mg), better dispersion performance in solvents, excellent electrical conductivity and ability to effectively increase conductivity of active materials and wettability of electrolyte of battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a composite conductive agent (2) an active material for lithium-ion battery.