钒酸镍锂离子电池负极材料的研究进展

Recent Progress of Nickel Vanadate Anode Materials for Lithium-Ion Batteries

综述了近年来国内外关于钒酸镍材料的合成方法、结构性质以及应用于锂离子电池新型负极材料的研究进展。钒酸镍(Ni3V2O8、NiV3O8等)电极材料具有成本低、环境友好、比容量高、倍率性能优异等优点,但其在充放电过程中体积的巨大变化、电导性差以及比表面积低等问题严重影响了其规模化应用。该文从三个方面阐述了近年来通过电极材料微纳米化、复合化、表面包覆等手段有针对性的进行钒酸镍电极材料改性的研究进展,积极探索了高性能钒酸镍材料的合成方法,展望了今后重点开展的研究方向,对于钒酸镍材料的广泛应用具有一定的学术价值和实用意义。

The synthesis methods,structural properties of nickel vanadate materials and research progress of these new anode materials for lithium-ion batteries are introduced.Nickel vanadate(Ni3V2O8 and NiV3 O8)materials are considered to be a series of promising new anode materials for lithium-ion batteries due to their advantages,such as low cost,environmental friendliness,high specific capacity and excellent rate performance.However,their drastic volume change during charging and discharging,poor electrical conductivity and low surface area largely hinder the exploitation of lithium storage capability.Thus,several methods for improving the electrochemical performance of nickel vanadate materials are emphatically discussed,including micro-nano synthesis of electrode material,synthesis of complex material,surface coating,etc.In addition,the research direction in the future is prospected.This review should be of great significance for both academic and industrial purposes of novel nickel vanadate anode materials.