Journal of Materials Science, volume 56, issue 35, pages 19614-19622
Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries
Publication type: Journal Article
Publication date: 2021-10-08
Journal:
Journal of Materials Science
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 4.5
ISSN: 00222461, 15734803
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Garnet Li7La3Zr2O12 (LLZO) is a promising solid-state electrolyte (SSE) candidate for advanced solid-state lithium batteries (SSLBs). In this work, Li6.25La3Zr2-yAlxTayO12 (x = 0.25, y = 0; x = 0.2, y = 0.15; x = 0.15, y = 0.3; x = 0.1, y = 0.45; x = 0.05, y = 0.6) and Li6.4La3Zr1.4Ta0.6O12 (LLZT0.6O) ceramic electrolytes, are prepared via a simple sol–gel process. The effect of Al and Ta co-doping levels on the phase, the microstructure and the ionic conductivity of modified LLZO is discussed in detail. Those Al/Ta co-doped LLZO ceramics (LLZATO) with Ta ≥ 0.3 per formula unit, are nearly pure cubic structures with a trace of new phases. The ionic conductivities of Li6.25La3Zr1.55Al0.1Ta0.45O12 (LLZA0.1T0.45O) and Li6.25La3Zr1.4Al0.05Ta0.6O12 (LLZA0.05T0.6O), are greatly improved by co-doping Al and Ta, benefitting from the emergence of self-grown LiAlO2 phase, and the microstructure of large grains contacting small grains. Remarkably, the optimal LLZA0.1T0.45O delivers a high ionic conductivity of 6.70 × 10–4 S cm−1 and a low electronic conductivity ~ 9.83 × 10–8 S cm−1 at 25 °C. This work provides available enhanced Al/Ta co-doped LLZO ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries.
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Xue M. et al. Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries // Journal of Materials Science. 2021. Vol. 56. No. 35. pp. 19614-19622.
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Xue M., Lu W., Xue S., Zhang C. Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries // Journal of Materials Science. 2021. Vol. 56. No. 35. pp. 19614-19622.
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TY - JOUR
DO - 10.1007/s10853-021-06514-9
UR - https://doi.org/10.1007/s10853-021-06514-9
TI - Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries
T2 - Journal of Materials Science
AU - Xue, Mingzhe
AU - Lu, Wanzheng
AU - Xue, Song
AU - Zhang, Cunman
PY - 2021
DA - 2021/10/08 00:00:00
PB - Springer Nature
SP - 19614-19622
IS - 35
VL - 56
SN - 0022-2461
SN - 1573-4803
ER -
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@article{2021_Xue,
author = {Mingzhe Xue and Wanzheng Lu and Song Xue and Cunman Zhang},
title = {Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries},
journal = {Journal of Materials Science},
year = {2021},
volume = {56},
publisher = {Springer Nature},
month = {oct},
url = {https://doi.org/10.1007/s10853-021-06514-9},
number = {35},
pages = {19614--19622},
doi = {10.1007/s10853-021-06514-9}
}
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Xue, Mingzhe, et al. “Enhanced Al/Ta co-doped Li7La3Zr2O12 ceramic electrolytes with the reduced Ta doping level for solid-state lithium batteries.” Journal of Materials Science, vol. 56, no. 35, Oct. 2021, pp. 19614-19622. https://doi.org/10.1007/s10853-021-06514-9.