Nano Letters, volume 22, issue 13, pages 5516-5522
Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation
1
Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya 456-8587, Japan
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3
Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8586, Japan
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Publication type: Journal Article
Publication date: 2022-06-13
Journal:
Nano Letters
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 10.8
ISSN: 15306984, 15306992
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
Lithium lanthanum titanate La2/3-xLi3xTiO3 (LLTO) has the potential to exhibit the highest Li-ion conductivity among oxide-based electrolytes because of the fast Li-ion diffusion derived from its crystal structure. Herein, bulk Li-ion conductivity of up to σbulk = 4.0 × 10-3 S/cm at 300 K, which is approximately three to four times higher than that of LLTO polycrystals, was demonstrated using LLTO single crystals, and their dependence on crystal domain orientation was examined. A change in the activation energy, which was previously obscured because of random crystal orientation, was observed at approximately 260 K. Furthermore, electron microscopy analysis indicated that the ionic conductivity of LLTOs remained higher because the region with the highest ionic conductivity was tilted away from the ideal conduction orientation. The results reported herein provide the highest conductivity in LLTO and important insights into their crystal structures, enabling higher conductivity in novel oxide-based electrolyte design.
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Citations by publishers
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3 publications, 25%
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2 publications, 16.67%
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1 publication, 8.33%
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1 publication, 8.33%
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- We do not take into account publications without a DOI.
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Kobayashi S. et al. Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation // Nano Letters. 2022. Vol. 22. No. 13. pp. 5516-5522.
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Kobayashi S., Yokoe D., FUJIWARA Y., Kawahara K., Ikuhara Y., kuwabara A. Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation // Nano Letters. 2022. Vol. 22. No. 13. pp. 5516-5522.
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TY - JOUR
DO - 10.1021/acs.nanolett.2c01655
UR - https://doi.org/10.1021/acs.nanolett.2c01655
TI - Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation
T2 - Nano Letters
AU - Yokoe, Daisaku
AU - FUJIWARA, Yasuyuki
AU - Kobayashi, Shunsuke
AU - Kawahara, Kazuaki
AU - Ikuhara, Yuichi
AU - kuwabara, A.
PY - 2022
DA - 2022/06/13 00:00:00
PB - American Chemical Society (ACS)
SP - 5516-5522
IS - 13
VL - 22
SN - 1530-6984
SN - 1530-6992
ER -
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@article{2022_Kobayashi,
author = {Daisaku Yokoe and Yasuyuki FUJIWARA and Shunsuke Kobayashi and Kazuaki Kawahara and Yuichi Ikuhara and A. kuwabara},
title = {Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation},
journal = {Nano Letters},
year = {2022},
volume = {22},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021/acs.nanolett.2c01655},
number = {13},
pages = {5516--5522},
doi = {10.1021/acs.nanolett.2c01655}
}
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Kobayashi, Shunsuke, et al. “Lithium Lanthanum Titanate Single Crystals: Dependence of Lithium-Ion Conductivity on Crystal Domain Orientation.” Nano Letters, vol. 22, no. 13, Jun. 2022, pp. 5516-5522. https://doi.org/10.1021/acs.nanolett.2c01655.