▎ 摘　　要

NOVELTY - Graphite oxide is dispersed in pure water for 2 hours, silver nitrate is added, mixed, and sodium borohydride (a) is further added and stirred, to obtain silver/graphite oxide dispersion liquid. Sodium borohydride (b) is further added to dispersion liquid, heated at 70-85 degrees C under nitrogen atmosphere for 3 hours, and centrifugally washed, to obtain silver/graphene dispersion liquid. The obtained liquid is filtered and washed with water, to obtain silver/graphene thin film supercapacitor electrode material. The mass ratio of sodium borohydride (a) and graphite oxide is 2:1-1:1. USE - Preparation of silver/graphene thin film supercapacitor electrode material. ADVANTAGE - The silver/graphene thin film supercapacitor electrode material is efficiently prepared with excellent capacitance, conductivity, and flexibility by simple process.