Abstract: In this paper，the superior performance and defects of LiFePO4 were investigated with the emphasis on crystal structure. The features and effects of two techniques for modification：physical and bulk doping were presented. The research progress of the preparation of LiFePO4 was introduced，such as solid state method，co-precipitation and so on. Finally，the development prospects of LiFePO4 and its research direction leading to the practical application in Li-ion battery industry were discussed.

摘要： 从LiFePO4的结构出发，分析了该材料所特有的优越性能以及存在的缺陷，阐述了物理掺杂和体相掺杂两类改性方法的特点和取得的成效。在此基础上，介绍了高温固相法、共沉淀法等方法合成LiFePO4的最新研究进展，探讨了各种制备方法的优缺点，并简要评述了LiFePO4未来发展的前景以及为使该材料走向实用化应注重的研究方向。