磷酸铁锂制备工艺及研究进展

橄榄石型磷酸铁锂(LiFePO4)作为一种新型锂电池正极材料,因其原料来源丰富、价廉、无毒、理论容量高、热稳定性好以及循环性能好等优点近几年备受关注,是下一代锂离子电池的首选材料。本文简要介绍了磷酸铁锂的橄榄石型结构和电化学性能,比较了不同的制备工艺及方法,并针对其电导率低的缺点对目前采用的改性工艺作了总结。

Preparation and Research Progress of LiFePO_4 Cathode Material

Olivine structure LiFePO4 as a promising cathode material attracted much attention because of its advantage,such as rich source of cheap raw materials,non-toxic,high theoretical capacity,thermal stability and good cycling performance. Therefore LiFePO4 is the preferred material of the next generation of lithium-ion battery. Here olivine-type structure and electrochemical performance of LiFePO4 are presented briefly,while the preparation and modification aimed at the low electronic conductivity are described...