The active material SnQD_RGO was prepared by mixing the SnQD and RGO in a weight ratio of 60:40. The electrode preparation was carried out by mixing the active material, conductive carbon (Acetylene black, Alfa-Aeser), and binder (Teflonized acetylene black, TAB-2) in a weight ratio of 5:1:1 using ethanol. The mixing was continued until a free-standing film was obtained. The asobtained film was pressed onto a stainless steel (Goodfellow) mesh, which act as a current collector, using a hydraulic press. To remove the moisture content, the electrode was kept overnight at 75 o C in a vacuum oven. The electrode was then inserted into an Argon-filled glove box with O2 < 0.1 ppm and H2O < 0.1 ppm. For the half-cell fabrication, the electrode was kept in a CR2016 coin-cell setup with Lithium as a counter electrode, both electrodes were separated from contact using a glass microfibre separator (Whatman, 1825-047, GF/F), and the electrolyte (1M LiPF6 in ethylene carbonate (EC) and dimethyl carbonate (DMC) (1:1 weight ratio, LIPASTE, Tomiyama) with 10 % (by volume) of fluoroethylene carbonate (FEC) as additive) was added to the separator followed by sealing the cell. The as-prepared cell was then subjected to galvanostatic charge-discharge studies using a battery tester (Biologic) at a current density of 100 mA g -1 within a potential window of 0.005 -1 V.