关于提高LiFePO_4振实密度的研究进展  

Research progress on improving tap density of LiFePO_4

作　　者：时喜喜[1,2] 郭春雨[1] 易炜[1] 付亚娟[1] 郝明明[1] 

机构地区：[1]中国电子科技集团公司第十八研究所,天津300381 [2]天津大学化工学院,天津300072

出　　处：《电源技术》2010年第8期848-851,共4页Chinese Journal of Power Sources

摘　　要：LiFePO4低的振实密度使得LiFePO4电池的体积比能量较低,限制了LiFePO4的实际应用。综述了国内外关于提高LiFePO4振实密度的研究进展,给出了结论:合成球形颗粒是提高材料振实密度的有效途径,提高振实密度并兼顾良好的电化学性能是提高体积比能量的关键。Lithium iron phosphate has low volumetric energy density due to its low tap density,which limites its practical applications.The research progress on improving the tap density of lithium iron phosphate was introduced in this paper.It is concluded that the preparation of spherical particles is an effective way to improve the tap density,and also a good compromise between a high tap density and good electrochemical property is the key to increase the volumetric energy density.

关 键 词：LIFEPO4 正极材料 振实密度 体积比能量 

分 类 号：TM912.9[电气工程—电力电子与电力传动]