A versatile strategy for ultrathin SnS2 nanosheets confined in a N-doped graphene sheet composite for high performance lithium and sodium-ion batteries

In this work, few-layer SnS2 nanosheets confined in a nitrogendoped graphene sheet composite (SnS2/NGS) are successfully synthesized via a facile thermal decomposition method. SnS2/NGS demonstrates sufficient nitrogen-doping and full graphene encapsulation. When evaluated as an anode material for lithium/sodiumion batteries, it exhibits an excellent electrochemical performance.