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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/113/05-06/0427-0433

    • Keywords

       

      Lithium ion conductors; lithium-lanthanum perovskites; lithium-lanthanum titanates

    • Abstract

       

      We describe the synthesis and lithium-ion conductivity of new perovskite-related oxides of the formulas, LiCa1.65□0.35Ti1.3B1.7O9 (B =Nb,Ta)(I,II), LiSr2Ti2.5W0.5O9 (III) and LiSr1.65□0.35Ti2.15W0.85O9(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 containingd0 cations.

    • Author Affiliations

       

      Litty Sebastian1 A K Shukla1 J Gopalakrishnan1

      1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore - 560 012, India

    • Dates

       
      Published
      12 October 2001

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