One-pot synthesis of carbon coated-SnO2/graphene-sheet nanocomposite with highly reversible lithium storage capability

► SnO2-C/GNS nanocomposite was synthesized by a one-pot hydrothermal approach. ► Strong oxidation and reduction process to produce GNS by Hummer's method is avoided. ► It exhibits excellent high-rate capability and cycling stability as anode material. ► The improved performance was attributed to the double carbon buffering matrix.