Journal
SOLID STATE IONICS
Volume 243, Issue -, Pages 18-21Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2013.04.014
Keywords
Li ion conductor; LLTO; Complex conductivity; Universal dielectric response
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Funding
- Grants-in-Aid for Scientific Research [25820332] Funding Source: KAKEN
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Lithium (Li) ion conductivities of Nd-doped (Li, La)TiO3 (LLNT) ceramics are evaluated as a function of Nd-loading. The bulk ion conductivity, sigma(dc), improves for the specimen with -0.75 mol% Nd. The conductivity of the 0.5 mol% Nd-loaded LLNT is sigma(dc) = 1.26 x 10(-3) S cm(-1) at room temperature. It is the highest conductivity measured, and is 1.33 times higher than that of the non-doped ceramic. The enhancement of the Li ion conductivity with Nd-doping in the LLNTs is attributed to an increase in the volume fraction of the A-site disordered cubic phase. (C) 2013 Elsevier B.V. All rights reserved.
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