▎ 摘　　要

NOVELTY - The preparation method of graphene aggregate sol involves placing high-purity graphite anode and cathode plate into electrolytic oxidation tank, then pouring electrolyte into oxidation tank, switching-on power supply, and carrying out electrolytic oxidation reaction at 10-60 degrees C for 150-200 hours using effective current density of 50-100 A/m2, power pulse frequency of 40-60 Hz and effective voltage of 12-20 V, and when the concentration of graphene sol reaches 0.3-0.7%, terminating oxidation reaction. USE - The method is useful for preparing graphene aggregate sol, which is useful as conductive agent for batteries, and plant growth promoter. ADVANTAGE - The method enables simple and economical preparation of graphene aggregate sol with high yield. DETAILED DESCRIPTION - The preparation method of graphene aggregate sol involves placing high-purity graphite anode and cathode plate into electrolytic oxidation tank, then pouring electrolyte into oxidation tank, switching-on power supply, and carrying out electrolytic oxidation reaction at 10-60 degrees C for 150-200 hours using effective current density of 50-100 A/m2, power pulse frequency of 40-60 Hz and effective voltage of 12-20 V, and when the concentration of graphene sol reaches 0.3-0.7%, terminating oxidation reaction, where the solution in the oxidation tank is graphene aggregate sol. The anode and cathode plates are separated by plastic mesh.