Lithium Storage Properties of TiC‐Modified SnS₂ Nanosheets

Abstract

To deal with the problem of low conductivity and easy restacking of SnS2 nanosheets, TiC‐modified SnS2 nanosheets have been obtained by sulfurization of Sn/TiC precursors. Electrochemical test results show that a synergistic effect of ultrathin SnS2 nanosheets and highly conductive TiC can significantly improve the lithium storage properties of the nanocomposite. The higher the TiC content in the SnS2/TiC nanosheets, the greater their capacity. More specifically, an SnS2/TiC (35 %) electrode delivers a high reversible capacity of 631 mAh g−1 at 0.3 A g−1 after 100 cycles, corresponding to a capacity retention of 87.0 %. Moreover, it exhibits a higher surface area of 50.076 m2 g−1 and outstanding cyclability with a reversible capacity of 597 mAh g−1 at 1 A g−1 after 350 cycles. Overall SnS2/TiC nanosheets have high yield and purity, and their preparation is simple, making them an ideal candidate material for high‐performance anodes in next‐generation Li‐ion batteries.