大功率电池材料LiFePO4的研究进展

磷酸亚铁锂有优良的热稳定性和安全性能,充放电效率高,而其价格便宜,环境友好无污染,被认为是极具有发展空间的锂离子电池正极材料.但是磷酸亚铁锂导电性差,振实密度低,因此研究人员在磷酸亚铁锂的掺杂改性方面做了大量工作.作者综述了磷酸亚铁锂的结构特征、电化学性能、制备方法和提高其导电性能的方法.

Research progress of high-powered battery material LiFePO4

Lithium iron phosphate was considered as the extremely developing anode material for lithium ion battery because of its excellent thermal stability,safety performance,high efficiency,low price and no pollution to the environment.But the conductivity of LiFePO4 was poor,as well as the vibration density was also low,so many researchers have studied the doping modification of LiFePO4.This review summarized the structure characteristic,electrochemical properties,preparation and the methods to increasing the conductivities of lithium iron phosphate.