Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (10): 1642-1646.doi: 10.3866/PKU.WHXB20071029

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Ion Exchange Behavior of Na/Li for the Lithium Ion Conductor of LiTi2(PO4)3

LOU Tai-Ping; WANG Jia-Liang   

  1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, P. R. China
  • Received:2007-03-21 Revised:2007-05-08 Published:2007-10-01
  • Contact: LOU Tai-Ping E-mail:loutaiping@yahoo.com.cn

Abstract: The lithium ion conductor LiTi2(PO4)3 has a very high ion exchange selectivity to Na+ in sodium chloride solution. The ion exchange behavior of Na/Li for LiTi2(PO4)3 in NaCl solution was investigated. The experimental results showed that the Na/Li ion exchange reaction rate increased obviously for LiTi2 (PO4)3 with increasing temperature, and the Na/Li ion exchange kinetics process of LiTi2(PO4)3 in sodium chloride solution could be represented approximately by the equation of JMAK(Johnson-Mehl-Aurami-Kalmogorav). The dissolution behaviors of LiTi2(PO4)3 in water and NaCl solution were investigated, the results showed that higher temperature, acid or alkali environment could enhance the dissolution of LiTi2(PO4)3.

Key words: LiTi2(PO4)3, Ion exchange, Dissolving

MSC2000: 

  • O645