Uniform V2O5 nanosheet-assembled hollow microflowers with excellent lithium storage properties

Hierarchical vanadium-based hollow microflowers are prepared by a facile solvothermal approach. This novel nanostructure can be easily converted to V2O5 without significant structural alteration by simple annealing. The as-derived V2O5 nanosheet-assembled hollow microflowers exhibit excellent lithium storage properties with high capacity and superior cycling stability.