Ionics, volume 28, issue 12, pages 5321-5331
Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics
Yuan Li
1
,
Zhenzhu Cao
1
,
Zhipeng Jiang
1
,
Yongfan Cao
1
,
Jinrong Liu
1, 2
,
Liying Wang
1
,
Guorong Li
3
2
Hohhot, People’s Republic of China
|
Publication type: Journal Article
Publication date: 2022-10-14
General Chemical Engineering
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
Li7La3Zr2O12 (LLZO) has shown excellent electrochemical performance and chemical stability. In this work, Li6.4Ga0.2La3-xYbxZr2O12 (0 ≤ x ≤ 0.1) has been synthesized by solid-state reaction method. The effect of Ga and Yb co-doping on the crystal structure, morphology, densification, and electrical performance was investigated. The doping with Ga3+ stabilized the cubic phase while the doping with Yb3+ optimized Li+ transport channel size and accelerated the densification of the ceramics. Li6.4Ga0.2La2.95Yb0.05Zr2O12 (relative density 94.8%) exhibited the highest total conductivity (8.96 × 10−4 S·cm−1 at 30 °C) and the lowest activation energy of 0.28 eV. Meanwhile, Li6.4Ga0.2La2.95Yb0.05Zr2O12 showed high mobility (1.36 × 10−6 cm2 V−1 s−1), diffusion coefficient (3.18 × 10−8 cm2 s−1) and high hopping rate of lithium ions (5.0 × 106 rad s−1) at 0 °C. The high discharge capacity and capacity retention of LiFePO4/Li6.4Ga0.2La2.95Yb0.05Zr2O12/Li solid-state batteries indicate that Ga and Yb co-doped Li7La3Zr2O12 ceramic should be a promising electrolyte.
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Li Y. et al. Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics // Ionics. 2022. Vol. 28. No. 12. pp. 5321-5331.
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Li Y., Cao Z., Jiang Z., Cao Y., Liu J., Wang L., Li G. Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics // Ionics. 2022. Vol. 28. No. 12. pp. 5321-5331.
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TY - JOUR
DO - 10.1007/s11581-022-04787-x
UR - https://doi.org/10.1007/s11581-022-04787-x
TI - Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics
T2 - Ionics
AU - Li, Yuan
AU - Cao, Zhenzhu
AU - Jiang, Zhipeng
AU - Cao, Yongfan
AU - Liu, Jinrong
AU - Wang, Liying
AU - Li, Guorong
PY - 2022
DA - 2022/10/14 00:00:00
PB - Springer Nature
SP - 5321-5331
IS - 12
VL - 28
SN - 0947-7047
SN - 1862-0760
ER -
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@article{2022_Li,
author = {Yuan Li and Zhenzhu Cao and Zhipeng Jiang and Yongfan Cao and Jinrong Liu and Liying Wang and Guorong Li},
title = {Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics},
journal = {Ionics},
year = {2022},
volume = {28},
publisher = {Springer Nature},
month = {oct},
url = {https://doi.org/10.1007/s11581-022-04787-x},
number = {12},
pages = {5321--5331},
doi = {10.1007/s11581-022-04787-x}
}
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Li, Yuan, et al. “Synergistic effect of Ga and Yb co-doping on the structure and ionic conductivity of Li7La3Zr2O12 ceramics.” Ionics, vol. 28, no. 12, Oct. 2022, pp. 5321-5331. https://doi.org/10.1007/s11581-022-04787-x.