锂离子蓄电池钒系正极材料的研究进展

综述了锂离子蓄电池中钒系正极材料的研究和发展。对钒的氧化物V2 O5和V6O13 以及钒酸锂系化合物Li1 x V3 O8、LiNiVO4、Li6V5O15和LixV2 O5等电极材料的特点、合成方法、放电容量和循环性能等作了总结。比较详细地介绍了钒的氧化物V2 O5在充放电过程中结构变化的情况、钒酸锂系化合物Li1 xV3 O8的结构特点、在充放电过程中物相的变化情况和容量衰减的原因 ,以及最近几年提出的旨在提高其容量的几种新的合成方法。对最近研究热点之一的V2 O5凝胶和其衍生物质Cu0 .1V2 O5干凝胶的研究情况也作了介绍。

Development of vanadium-based compounds used as cathode for lithium ion battery

Development of vanadium based compounds used as cathode materials for lithium ion battery was reviewed. The characteristics, synthesis methods, discharge capacity and cyclic performances of V 2O 5, V 6O 13 ,Li 1 x V 3O 8,LiNiVO 4,Li 6V 5O 15 and Li xV 2O 5 were discussed. The structural characteristics, the phase change during charge/discharge cycles and the reason of capacity fading of V 2O 5 and Li 1 x V 3O 8 were described in detail as well as the new synthesis methods for improving the electrode capacity. The development of promising cathode material V 2O 5 gel and its derivative Cu 0.1 V 2O 5 was also introduced.