Nanoscroll buffered hybrid nanostructural VO2 (B) cathodes for high-rate and long-life lithium storage.

Mai, Liqiang; Wei, Qiulong; An, Qinyou; Tian, Xiaocong; Zhao, Yunlong; Xu, Xu; Xu, Lin; Chang, Liang et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Hybrid nanostructural VO2 (B) composed of nanoscrolls, nanobelts and nanowires is synthesized through a hydrothermal-driven splitting and self-rolled method. The hybrid nanostructure with nanoscroll buffered effect provides facile strain relaxation for swelling during lithiation/delithiation, resulting in the excellent structural stability and cyclability. The interior of nanoscrolls and the interconnected voids shorten the ion diffusion pathway, which greatly enhances the rate performance.