磷酸铁锂振实密度的研究进展  

Research progress of the tap density of lithium iron phosphate

作　　者：李中[1] 洪建和[1] 何岗[1] 何明中[1] 

机构地区：[1]中国地质大学(武汉)材料与化学学院,湖北武汉430074

出　　处：《电子元件与材料》2012年第9期78-81,共4页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.50821140308;No.50972135);材料复合新技术国家重点实验室(武汉理工大学)开放基金资助项目(No.2010-KF-6)

摘　　要：磷酸铁锂以其价格低廉、稳定性好、循环性能好和无毒等优点,有望成为下一代锂离子电池首选的正极材料之一。目前关于磷酸铁锂电子电导率低和离子扩散速率慢的缺点已经有了较深入的研究,但是磷酸铁锂低的振实密度却没有得到足够重视。综述了近年来国内外关于磷酸铁锂振实密度的研究进展,分别讨论了形貌、粒径与分布、碳包覆和金属离子掺杂等方面对磷酸铁锂振实密度的影响,并对合成高振实密度磷酸铁锂材料的方法进行了总结。Lithium iron phosphate is expected to be one of the preferred cathode materials for the new generation of lithium ion batteries because of its low material cost,high thermal stability,satisfactory cycle stability,and low toxicity.At present,the shortcomings of lithium iron phosphate such as low electronic conductivity and ion diffusion rate of lithium iron phosphate are studied very deeply.However,the low tap density of lithium iron phosphate has not received enough attention.The researches of the tap density of lithium iron phosphate are reviewed at home and abroad in recent years,and the effects of morphology,particle size and distribution,carbon coating and metal doping on the tap density of lithium iron phosphate are introduced,and several methods to synthesize lithium iron phosphate with high tap density are concluded.

关 键 词：磷酸铁锂 振实密度 综述 正极材料 

分 类 号：TM912[电气工程—电力电子与电力传动]