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New lithium-ion conducting perovskite oxides related to (Li, La)TiO3

Sebastian, Litty and Shukla, AK and Gopalakrishnan, J (2001) New lithium-ion conducting perovskite oxides related to (Li, La)TiO3. In: Proceedings of the Indian Academy of Sciences Chemical Sciences, 113 (5). pp. 427-433.

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Abstract

We describe the synthesis and lithium-ion conductivity of new perovskite-related oxides of the formulas, LiCa(1.65)square 0.35Ti1.3B1.7O9 (B = Nb, Ta) (I, II), LiSr2Ti2.5W0.5O9 (III) and LiSr(1.65)square 0.35Ti2.15W0.85O9 (IV). Oxides I and II crystallize in orthorhombic (GdFeO3-type) structure, while oxides III and IV possess cubic symmetry. All of them exhibit significant lithium-ion conduction at high temperatures, the highest conductivity of similar to 10(-2) S/cm at 800 degreesC among the oxides is exhibited by the composition IV. The results are discussed in the light of previous work on lithium- ion conducting perovskite oxides containing d(0) cations.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Indian Academy of Sciences.
Keywords: Lithium ion conductors;lithium–lanthanum perovskites;lithium–lanthanum titanates
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 10 Sep 2004
Last Modified: 19 Sep 2010 04:16
URI: http://eprints.iisc.ernet.in/id/eprint/1908

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