▎ 摘　　要

A facile one-step solution-based process to in situ synthesize SnO2/graphene (SG) nanocomposites was developed, by using the mixture of dimethyl sulfoxide (DMSO) and H2O as both solvent and reactant. The reduction of graphene oxide (GO) and the in situ formation of SnO2 nanoparticles were realized in one step. The electrochemical experiments showed the composites provided a better Li-storage performance. The method presented in this paper may provide an effective, economic, and green strategy for the preparation of metal-codde/graphene nanocomposites.