Synthesis of porous vanadium sesquioxide by thermal decomposition method and its performance as anode for lithium-ion batteries

Abstract

Relatively low theoretical capacity and poor rate capability of commercial anode materials made traditional lithium-ion batteries (LIBs) difficult to satisfy the ever-increasing requirements in electric devices. Seeking for novel advanced substituted anode materials has been a great challenge. Herein, porous V2O3 particles composed of three-dimensional cut-through framework are produced as high-performance anode materials. The crystallinity of produced V2O3 was in pure rhombohedral phase. The porous V2O3 anode has a high specific capacity of 140 mA h g−1 at the density rate of 100 mA h g−1, and exhibits appreciable rate capability and excellent long-term cycling stability without apparent capacity fading after 50 cycles.