Facile Synthesis of SnS-Graphene Nanocomposites with High Lithium Storage Capacity

SnS-graphene nanocomposites were synthesized through homogeneous precipitation method. The composite material as prepared was characterized using X-ray diffraction, Raman spectroscopy, transmission electron microscopy and elemental analysis. The results indicate that SnS nanoparticles possess a good dispersion on the surface of graphene. The electrochemical performance of SnS-graphene nanocomposites was characterized by galvanostatic charge-discharge tests. The nanocomposites retained a reversible capacity of 679 mAh g(-1) after 30 cycles. Moreover, the composite material exhibited higher lithium storage capacity and better cycling performance compared to bare SnS and graphene. The results suggest that the combination of SnS and graphene leads to synergistic performance, which enhances electrochemical performance of the overall system.