The volume expansion also occurs in the case of SnQDs during charge-discharge leading to poor cycle stability and coulombic efficiency. To alleviate the adverse effect of volume expansion and to enhance the electrochemical stability in SnQDs, composites have been prepared by combining SnQD with RGO (reduced graphene oxide) at specific ratio. Accordingly, Figure shows a potential vs. time plot for the pristine SnQDs a and their composites. The galvanostatic chargedischarge (GCD) studies of SnQD a and SnQDs a -c _RGO have been conducted within the potential window of 0.005 -1 V at a current density of 100 mA g -1 . From the GCD plots as shown in Figure , it can be observed that the SnQDs_RGO exhibits better discharge capacity of 261, 187, and 159 mAh g -1 , respectively for SnQDs a_RGO, SnQDs b_RGO, and SnQDs c_RGO, while the pristine SnQDs a exhibits a low discharge capacity of 75 mAh g -1 . Although large irreversibility has been observed in the initial cycle of SnQD_RGO due to volume expansion (Figure ), which is inevitable in the case of Sn-based anodes, stable cycling has been observed