中文摘要：

商业化锂离子电池以锂过渡金属氧化物作正极材料,由于安全性等问题限制了其更广泛的应用。在已经研究和开发的众多新型锂离子电池正极材料中,钒系磷酸盐由于具有较高的对锂电位和理论比容量而成为研究热点。本文综述了各种钒系磷酸盐类锂离子电池正极材料的研究现状,重点对各种材料的结构、制备方法和电化学性能进行了总结,并对改善材料综合性能的方法和机理进行了探讨。

英文摘要：

Nowadays Li ion batteries have been widely used in many fields as power suppliers for mobile equipment.In commercialized Li ion batteries,cathode materials are mainly lithium transition-metal oxides.However,high cost and security problem limit their large-scale use.Phosphate materials,with a rigid phosphate network and remarkable electrochemical and thermal stability,are considered as a substitution for lithium transition-metal oxides.Among the newly-exploited phosphate cathode materials,vanadium-based phosphates,with stable structure and high theoretical specific capacity,have been attracting much research interest.In this review,recent progress is summarized on the vanadium-based phosphate cathode materials for lithium ion batteries,particularly focusing on the structure,preparation methods,and electrochemical performances of this series of materials.Also,the strategies and the corresponding mechanisms are discussed for the improvement of their general performances.