Journal
SOLID STATE IONICS
Volume 179, Issue 21-26, Pages 867-870Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2008.02.012
Keywords
ionic conductivity; NMR; Li ion diffusion; phase transition; solid solution
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Li3InBr6-xClx was synthesized and the substitution effect on conductivity was investigated. Li3InBr6-xClx was single phase at all compositions. The volume of crystal lattice was decreased with Cl content and the rate of the decrease changed at x = 3. The conductivity of Li3InBr6-xClx had a maximum in Li3InBr3Clx and its value was 1.2 x 10(-4) Scm(-1) at 300 K. The activation energy of the conduction was at the minimum around x = 3 and its value was 20 kJ mol(-1). Phase transition temperature was lowered to be 285 K and the high conduction phase was stabilized by substitution Br with Cl. Li-7 NMR spectra in Li3InBr3Cl3 was sharp and it was confirmed that the diffusion of Li ion was fast at room temperature. (C) 2008 Elsevier B.V. All rights reserved.
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