橄榄石型磷酸铁锂( LiFePO4)由于价格低廉、热稳定性好、比容量高、循环寿命长、环境友好等优点被公认为最具发展潜力的锂离子电池正极材料.介绍了锂离子电池正极材料LiFePO4的晶体结构和工作原理,概述了LiFePO4的制备方法.最后,分析了国内外LiFePO4的生产现状,指出了正极材料LiFePO4在发展过程中存在的问题,并展望了其应用前景.%The olivine LiFePO4 is acknowledged as the most promising cathode material for lithium ion battery due to its lower cost, good thermal stability, high specific capacity, long cycling life, environmentally friendly, etc. The crystal structure and working principle of LiFePO4 are introduced. The preparing methods of LiFePO4 are reviewed. At last,the production situation of LiFePO4 at home and abroad is analyzed, the future application prospect and the existing problems are also presented.
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