动力电池正极材料LiFePO_4的产业化应用展望

Prospect of Industrialization Application of Cathode Material LiFePO_4 of High-power Lithium-ion Battery

磷酸铁锂正极材料兼具安全性好、容量高且对环境友好等优点,成为目前最具潜力的动力电池正极材料之一。但其较低的电子导电率及离子电导率等缺点也十分明显。主要从磷酸铁锂正极材料本身的性能,包括倍率性能、能量密度、循环寿命和高低温性能方面分析了其实际应用于动力电池的潜力,以及结合国内外锂离子电池正极材料供应商情况简述了目前国内外磷酸铁锂产业化现状和趋势。

As its outstanding advantages of good safety, high capacity and less pollution to environment, lithium iron phosphate cathode material is now one of the most promising cathode materials applied in high-power lithium-ion batteries. However its low electronic conductivity and ionic conductivity and other shortcomings are as obvious as its virtues mentioned above. In this paper, practical application potential of lithium iron phosphate cathode material in the high-power lithium-ion batteries was analyzed from the aspects of key characteristics of the material described, such as rate performance, energy density, cycle life and high-low temperature performance. And domestic and foreign markets of LiFePO4 were introduced at the same time.