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

Sebastian, Litty ; Shukla, A. K. ; Gopalakrishnan, J. (2001) New lithium-ion conducting perovskite oxides related to (Li, La)TiO3 Proceedings of the Indian Academy of Sciences - Chemical Sciences, 113 (5-6). pp. 427-433. ISSN 0253-4134

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We describe the synthesis and lithium-ion conductivity of new perovskite-related oxides of the formulas, LiCa1.65square0.35Ti1.3B1.7O9 (B =Nb,Ta)(I,II), LiSr2Ti2.5W0.5O9 (III) and LiSr1.65square0.35Ti2.15W0.85O9(IV). OxidesI andII crystallize in orthorhombic (GdFeO3-type) structure, while oxidesIII andIV possess cubic symmetry. All of them exhibit significant lithium-ion conduction at high temperatures, the highest conductivity of ~10-2S/cm at 800°C 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 d0 cations.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Lithium Ion Conductors; Lithium-lanthanum Perovskites; Lithium-lanthanum Titanates
ID Code:12957
Deposited On:11 Nov 2010 08:20
Last Modified:16 May 2016 22:12

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