▎ 摘　　要

NOVELTY - Graphene dispersion solution comprises 1-10 pts. wt. graphene, 0.5-5 pts. wt. dispersant and solvent (remaining amount), where preparation method comprises (i) preparing graphene into powder, (ii) mixing graphene powder and dispersant to obtain mixture, (iii) introducing mixture after mixing into ball mill, combining dry grinding and wet grinding, then grinding mixture, (iv) placing milled mixture in solvent, mixing under magnetic field, ultrasonic wave and stirring, and (v) mixing to obtain graphene dispersion solution. USE - Used as graphene dispersion solution. ADVANTAGE - The graphene has uniform particle size and excellent dispersibility.