Facile synthesis of layered LiV3O8 hollow nanospheres as superior cathode materials for high-rate Li-ion batteries

Abstract

Layered LiV₃O₈ porous and hollow nanospheres were synthesized via a facile solid-phase oxidization and lithiation route with V₂O₃ hollow nanospheres as the precursor. When used as the cathode for Li-ion batteries, the as-obtained LiV₃O₈ porous and hollow nanospheres showed a high specific capacity of 324 mA h g⁻¹ at a current density of 0.1 C, stable capacity (250 mA h g⁻¹ after 50 cycles), and excellent rate capability (124 mA h g⁻¹ at 5 C).