SOL-GEL SYNTHESIS AND ELECTRICAL PROPERTIES OF LITHIUM IONIC CONDUCTORS Li5La3M2O12 (M=Ta, Bi)

摘要：

In this paper, the nanocrystalline Li5La3M2O12 (M=Ta, Bi) powders with average size of about 100nm were synthesized by sol-gel method. The synthesis temperature and reaction time (~5h) of pure garnet-like Li5La3M2O12 (M=Ta, Bi) phase by the sol-gel method are about 150K lower and much shorter than those by the solid state reaction method. The best total lithium ion conductivity of the sample prepared by sol-gel method at room temperature can be as high as 2.4×10-5 S/cm with an activation energy of 0.4 eV in the bulk Li5La3Bi2O12 samples, 25% higher than that of the sample prepared by the solid state reaction.

作者: Y. X. GAO X. P. WANG Z. ZHUANG D. M. ZHANG Q. F. FANG

作者单位: Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P.R. China

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 95-103

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）