▎ 摘　　要

NOVELTY - Preparation of sulfonated polyaniline-graphene composite, involves dispersing sulfonated graphene uniformly in deionized water to obtain a homogeneous solution, adding aniline monomer to homogeneous solution, dispersing ultrasonically, constant stirring in an ice bath, dripping aqueous ammonium persulfate solution to dispersed solution for 0.5-1 hour, reacting under ice bath condition for 4-6 hours, performing polymerization, washing and drying. USE - Preparation of sulfonated polyaniline-graphene composites used as electrode material for supercapacitor. ADVANTAGE - The method enables preparation of sulfonated polyaniline-graphene composite with excellent rate performance and cycle stability. The electrode material has high capacitance.