▎ 摘　　要

NOVELTY - Preparation of 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione (I)-graphene composite material involves uniformly mixing 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione (I) and graphene, adding a solvent, stirring, dispersing uniformly, ultrasonically-processing, obtaining homogeneous mixed dispersion liquid, and drying under vacuum. USE - Preparation of 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione-graphene composite material used as anode material for sodium-ion battery (claimed). ADVANTAGE - The method provides 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione-graphene composite material having excellent electrochemical performance, by simple, economical, environmentally-friendly and energy-saving process at room temperature under normal pressure. DETAILED DESCRIPTION - Preparation of 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione of formula (I)-graphene composite material involves uniformly mixing 4,10-dithiatricyclo(7.3.0.03,7)dodeca-1(9),3(7),5,11-tetraene-2,8-dione (I) and graphene, adding a solvent, stirring, dispersing uniformly, ultrasonically-processing, obtaining homogeneous mixed dispersion liquid, and drying under vacuum.