Enhanced cycling stability of TiO2-coated V2O5 nanorods through a surface sol-gel process for lithium ion battery applications

In the present work, a surface sol-gel process was successfully used to coat V2O5 nanorods with nanolayers of TiO2. The coated V2O5 nanorods exhibited a reversible capacity of 251.2 mA h g(-1), higher than the uncoated ones. The composite thin film composed of graphene and the coated nanorods also exhibited better cycling stability. This simple and scalable surface sol-gel process can provide new opportunities to modify electrode nanomaterials for enhanced electrochemical properties.