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1 Archives of Metallurgy and Materials

1 2023

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Lithium-Ion Conductive Film Membrane of Li0.3La0.57TiO2 Perovskite Structure and its Application in Li-Air Batteries

100%

Rhee C.-K. , Chun Y.-B. , Kang S. H. , Kim W.-W. , Cao G.

tom Vol. 68, iss. 1

191--194

Impacts of precursor solution recipe, processing parameters, and pellet thickness on the lithium ionic conductivity of the ceramic materials with perovskite structure of Li0.3La0.57TiO3 were investigated and new method was proposed to synthesize Li0.3La0.57TiO3 solid state electrolyte. The results showed that ionic conductivity of Li0.3La0.57TiO3 membrane which was synthesized by firstly forming colloidal TiO2 (i.e., TiO2 sol) and then Li+ and La+ were added to the colloidal TiO2 was on the order of 10-5 S/cm. It also showed that the temperatures corresponding to a full decomposition for L0.3La0.57TiO3 is about 750°C and materials start forming perovskite structure when temperature reaches about 900°C and the lithium ionic conductivity gains about 21% increase when the pellet thickness is reduced to about ¼