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橄榄石结构的LiFePO_4作为锂离子电池的一种新型正极材料,具有原料来源广泛、价格低廉、对环境友好、能量密度和理论容量高、放电电压稳定、热稳定性和循环性好等优点,是下一代锂离子电池正极材料有力的竞争者.本文介绍LiFePO_4正极材料的结构与性能以及存在的问题:综述制备LiFePO_4的各种方法,即固相合成和液相合成两类,比较各种方法的优缺点;探讨近年来国内外对于改善LiFePO_4电化学性能所进行的研究工作,并对其发展前景进行了展望.

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