title: Supercritically exfoliated ultrathin vanadium pentoxide nanosheets with high rate capability for lithium batteries.
abstract: Ultrathin V2O5 nanosheets were successfully prepared through supercritical solvothermal reaction followed by annealing treatment. The formation of ultrathin nanosheets is owing to Ostwald ripening and the effect of supercritical fluids. As cathode material for lithium batteries, the ultrathin V2O5 nanosheets exhibit a capacity of 108 mA h g(-1) at a high rate of up to 10 C at 2.4-4 V and excellent cyclability with little capacity loss after 200 cycles. The enhanced rate performance is attributed to the shortened diffusion distance and the increased electrode-electrolyte contact area of the ultrathin nanosheet structure. It is also demonstrated that the supercritical solvothermal method is effective and facile to scalably synthesize ultrathin nanomaterials for lithium batteries.
authors: State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, WUT-Harvard Joint Nano Key Laboratory, Wuhan University of Technology, Wuhan, 430070, P. R. China. mlq518@whut.edu.cn.
authors: Qinyou
authors: Q
authors: An
authors: Qiulong
authors: Q
authors: Wei
authors: Liqiang
authors: L
authors: Mai
authors: Jiayang
authors: J
authors: Fei
authors: Xu
authors: X
authors: Xu
authors: Yunlong
authors: Y
authors: Zhao
authors: Mengyu
authors: M
authors: Yan
authors: Pengfei
authors: P
authors: Zhang
authors: Shizhe
authors: S
authors: Huang