Laterally confined graphene nanosheets and graphene/SnO2 composites as high-rate anode materials for lithium-ion batteries

High-rate anode materials for lithium-ion batteries are desirable for applications that require high power density. We demonstrate the advantageous rate capability of few-layered graphene nanosheets, with widths of 100–200 nm, over micro-scale graphene nanosheets. Possible reasons for the better performance of the former include their smaller size and better conductivity than the latter. Combination of SnO2 nanoparticles with graphene was used...