Carbon-Coated V2O5 Nanocrystals as High Performance Cathode Material for Lithium Ion Batteries

Carbon-coated V2O5 nanocrystals were prepared by using porous carbon as a hard template through a capillary-induction approach. The nanocrystal material exhibits markedly enhanced lithium discharge and charge capacities, excellent rate capability, and cycling stability. The unprecedented electrochemical performance makes the carbon-coated nanocrystalline V2O5 a very promising cathode material for lithium ion batteries.