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Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)

Solid electrolytes, such as perovskite Li(3x)La(2/1−x)TiO(3), Li(x)La((1−x)/3)NbO(3) and garnet Li(7)La(3)Zr(2)O(12) ceramic oxides, have attracted extensive attention in lithium-ion battery research due to their good chemical stability and the improvability of their ionic conductivity with great po...

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Autores principales: Hong, Jinhua, Kobayashi, Shunsuke, Kuwabara, Akihide, Ikuhara, Yumi H., Fujiwara, Yasuyuki, Ikuhara, Yuichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8230448/
https://www.ncbi.nlm.nih.gov/pubmed/34200888
http://dx.doi.org/10.3390/molecules26123559
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author Hong, Jinhua
Kobayashi, Shunsuke
Kuwabara, Akihide
Ikuhara, Yumi H.
Fujiwara, Yasuyuki
Ikuhara, Yuichi
author_facet Hong, Jinhua
Kobayashi, Shunsuke
Kuwabara, Akihide
Ikuhara, Yumi H.
Fujiwara, Yasuyuki
Ikuhara, Yuichi
author_sort Hong, Jinhua
collection PubMed
description Solid electrolytes, such as perovskite Li(3x)La(2/1−x)TiO(3), Li(x)La((1−x)/3)NbO(3) and garnet Li(7)La(3)Zr(2)O(12) ceramic oxides, have attracted extensive attention in lithium-ion battery research due to their good chemical stability and the improvability of their ionic conductivity with great potential in solid electrolyte battery applications. These solid oxides eliminate safety issues and cycling instability, which are common challenges in the current commercial lithium-ion batteries based on organic liquid electrolytes. However, in practical applications, structural disorders such as point defects and grain boundaries play a dominating role in the ionic transport of these solid electrolytes, where defect engineering to tailor or improve the ionic conductive property is still seldom reported. Here, we demonstrate a defect engineering approach to alter the ionic conductive channels in Li(x)La((1−x)/3)NbO(3) (x = 0.1~0.13) electrolytes based on the rearrangements of La sites through a quenching process. The changes in the occupancy and interstitial defects of La ions lead to anisotropic modulation of ionic conductivity with the increase in quenching temperatures. Our trial in this work on the defect engineering of quenched electrolytes will offer opportunities to optimize ionic conductivity and benefit the solid electrolyte battery applications.
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spelling pubmed-82304482021-06-26 Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3) Hong, Jinhua Kobayashi, Shunsuke Kuwabara, Akihide Ikuhara, Yumi H. Fujiwara, Yasuyuki Ikuhara, Yuichi Molecules Article Solid electrolytes, such as perovskite Li(3x)La(2/1−x)TiO(3), Li(x)La((1−x)/3)NbO(3) and garnet Li(7)La(3)Zr(2)O(12) ceramic oxides, have attracted extensive attention in lithium-ion battery research due to their good chemical stability and the improvability of their ionic conductivity with great potential in solid electrolyte battery applications. These solid oxides eliminate safety issues and cycling instability, which are common challenges in the current commercial lithium-ion batteries based on organic liquid electrolytes. However, in practical applications, structural disorders such as point defects and grain boundaries play a dominating role in the ionic transport of these solid electrolytes, where defect engineering to tailor or improve the ionic conductive property is still seldom reported. Here, we demonstrate a defect engineering approach to alter the ionic conductive channels in Li(x)La((1−x)/3)NbO(3) (x = 0.1~0.13) electrolytes based on the rearrangements of La sites through a quenching process. The changes in the occupancy and interstitial defects of La ions lead to anisotropic modulation of ionic conductivity with the increase in quenching temperatures. Our trial in this work on the defect engineering of quenched electrolytes will offer opportunities to optimize ionic conductivity and benefit the solid electrolyte battery applications. MDPI 2021-06-10 /pmc/articles/PMC8230448/ /pubmed/34200888 http://dx.doi.org/10.3390/molecules26123559 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hong, Jinhua
Kobayashi, Shunsuke
Kuwabara, Akihide
Ikuhara, Yumi H.
Fujiwara, Yasuyuki
Ikuhara, Yuichi
Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title_full Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title_fullStr Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title_full_unstemmed Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title_short Defect Engineering and Anisotropic Modulation of Ionic Transport in Perovskite Solid Electrolyte Li(x)La((1−x)/3)NbO(3)
title_sort defect engineering and anisotropic modulation of ionic transport in perovskite solid electrolyte li(x)la((1−x)/3)nbo(3)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8230448/
https://www.ncbi.nlm.nih.gov/pubmed/34200888
http://dx.doi.org/10.3390/molecules26123559
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