BiVO₄ Fern Architectures: A Competitive Anode for Lithium-Ion Batteries

The development of high-performance anode materials for lithium-ion batteries (LIBs) is currently subject to much interest. In this study, BiVO₄ fern architectures are introduced as a new anode material for LIBs. The BiVO₄ fern shows an excellent reversible capacity of 769 mAh g⁻¹ (ultrahigh volumetric capacity of 3984 mAh cm⁻³) at 0.12 A g⁻¹ with large capacity retention. A LIB full cell is then assembled with a BiVO₄ fern anode and LiFePO₄ (LFP, commercial) as cathode material. The device can achieve a capacity of 140 mAh g⁻¹ at 1C rate, that is, 81 % of the capacity of the cathode and maintained to 104 mAh g⁻¹ at a high rate of 8C, which makes BiVO₄ a promising candidate as a high-energy anode material for LIBs.