Engineering SnS2 nanosheet assemblies for enhanced electrochemical lithium and sodium ion storage

摘要: The reversible electrochemical storage of Li+ and Na+ ions is the operating basis secondary lithium-ion sodium-ion batteries. In recent years, there has been rapid growth in search for appropriate electrode materials. Nevertheless, development host materials active durable both remain challenging. this study, we report a facile solvothermal method to prepare hierarchical assemblies thin SnS2 nanosheets N-methyl-2-pyrrolidone. as-prepared product an expanded layered structure due presence organic intercalates. Mild annealing restores normal 2H-SnS2 phase with architecture preserved. When annealed was evaluated as anode material batteries, it exhibited large capacity excess 1200 mA h g−1 decent short-term cycling stability. It further coated carbon layer physical electrical reinforcement, which led much improved cycle life at low high current rates. Moreover, also demonstrated (∼600 g−1) stability