Fabrication of WS 2 -nanoflowers@rGO composite as an anode material for enhanced electrode performance in lithium-ion batteries.

In this paper, we descried a simple method to fabricate three-dimensional (3D) composite materials, WS-nanoflowers @ reduced graphene oxide (WS-NF@rGO), in which rGO crossed-link the isolated WS-NF to construct a 3D conductive network and provided protection against the volume changes of WS during electrochemical processes simultaneously. This unique structure of the WS-NF@rGO composite could not only promote both ion and electron diffusion, but also enhance the electrode stability, thus obtaining a high-capacity and long-cycle anode material for lithium-ion batteries. As a result, the WS-NF@rGO exhibited a reversible capacity of 730mAhg after 150 cycles at 100mAg and maintained a capacity of higher than 260mAhg at 2Ag, thus exhibiting great potential as an anode material for lithium storage.