Study of Transport Properties and Microstructure of Lithium-Conducting Li0.33La0.56TiO3 Ceramic


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Abstract

Methods of X-ray diffraction analysis, impedance spectroscopy, and scanning electron microscopy were used to examine how thermal treatment modes affect the transport properties and microstructure of a lithium-conducting oxide ceramic of composition Li0.33La0.56TiO3, produced from powders synthesized by the sol-gel method. It was found that the cubic structure of Li0.33La0.56TiO3 can be stabilized as a result of quenching after the high-temperature of sintering at 1150°C. The conditions were determined in which Li0.33La0.56TiO3 ceramic samples can be obtained with bulk ion conductivity of ∼1 × 10−3 S cm−1 at 20°C, which corresponds to the maximum values for the ceramic based on lithium-lanthanum titanate.

About the authors

G. B. Kunshina

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center

Author for correspondence.
Email: kunshina@chemy.kolasc.net.ru
Russian Federation, Apatity, Murmansk oblast, 184209

O. B. Shcherbina

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center

Email: kunshina@chemy.kolasc.net.ru
Russian Federation, Apatity, Murmansk oblast, 184209

V. I. Ivanenko

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientific Center

Email: kunshina@chemy.kolasc.net.ru
Russian Federation, Apatity, Murmansk oblast, 184209

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