A mesoporous WO3-X/graphene composite as a high-performance Li-ion battery anode

A novel mesoporous WO3-X/graphene composite was developed. This material allowed rapid electron and Li+ ion diffusion when used as a Li-ion battery (LIB) anode material. Remarkably, the graphene support protected WO3-X from changing volume during the electrochemical cycling process; this process generally induces capacity loss. The current work describes a high-performance anode material for LIB that has highly dense WO3-X, as well as high capacity, rate capability and stability. (C) 2014 Elsevier B. V. All rights reserved.