Effects of calcination on the preparation of carbon-coated SnO2/graphene as anode material for lithium-ion batteries

The effects of calcined temperature on the structure and electrochemical property of carbon-coated SnO2/graphene (SnO2-C/GN) composites are systematically explored. The results demonstrate that SnO2-C/GN-500 calcined at 500 °C exhibits the smallest charge transfer resistance and the best electrochemical performance.114