Acta Phys. -Chim. Sin. ›› 2005, Vol. 21 ›› Issue (07): 782-785.doi: 10.3866/PKU.WHXB20050716

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The Ion Exchange Behavior of Na/Li for the Lithium Ion Conductor Li1.3Ti1.7Al0.3(PO4)3;

LOU Tai-ping; LI Da-gang; DAI Hou-chen; TANG Shu-huan; XU Tie-wei; GAO Ming   

  1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004
  • Received:2004-12-10 Revised:2005-02-08 Published:2005-07-15
  • Contact: LOU Tai-ping

Abstract: The lithium ion conductor Li1.3Ti1.7Al0.3(PO4)3 is a NASICON structural functional material, which has very high selectivity of ion exchange for Na+. The effects of temperature on Na/Li ion exchange reaction for the Li1.3Ti1.7Al0.3(PO4)3 in sodium chloride and lithium chloride solutions were investigated. The experimental results show that the Na/Li ion exchange reaction rate increases obviously for Li1.3Ti1.7Al0.3(PO4)3 with increasing temperature in the same infiltration time, and the Li1.3Ti1.7Al0.3(PO4)3 is very effective to separate sodium impurity from lithium chloride solution.

Key words: Li1.3Ti1.7Al0.3(PO4)3, Ion exchange, Lithium chloride