Abstract

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.

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