A novel synthesis of spherical LiFePO4 nanoparticles

作者：Wang XingYao^*; Miao Cui; Zhou Jia; Ma Cong; Wang HuanFeng; Sun ShuQing

来源：Materials Letters, 2011, 65(14): 2096-2099.

DOI：10.1016/j.matlet.2011.04.069

• LiFePO4
• Hydrothermal stripping
• Nanoparticles
• Powder technology
• Electrical properties

An effective, simple and green synthesis method based on hydrothermal stripping technique, in which ferrous ion was stripped and precipitated directly from iron (II)-loaded organic phase, has been successfully developed. X-ray diffraction (XRD) and Transmission Electron Microscope (TEM) showed that the samples synthesized at 140-250 degrees C with raw materials LiOH, H3PO4 and FeSO4 center dot 7H(2)O are well-defined spherical LiFePO4 nanoparticles, and the particle size can be easily controlled by changing the temperature and time. Electrochemical tests showed that the sample has a higher cell performance as a cathode material. Our results suggest that hydrothermal stripping synthesis is a promising method for obtaining spherical LiFePO4 nanoparticles without agglomeration.

• 出版日期2011-7-31
• 单位天津大学