Journal of Solid State Chemistry, volume 295, pages 121949
Enhancing the ionic conductivity and stabilizing cubic structure of garnet-type Li6.25-xAl0.25La3Zr2-xTaxO12 by Al/Ta co-doping
Shuhao Yan
1
,
Qianyue Cui
1
,
Chao-Chao Sun
2
,
Junjie Hao
1
,
XIANGCHENG CHU
3
,
Haoran Xie
1
,
Shengzeng Lin
1
,
Xiaodong Zhang
1
Publication type: Journal Article
Publication date: 2021-03-01
Journal:
Journal of Solid State Chemistry
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.3
ISSN: 00224596, 1095726X
Materials Chemistry
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Inorganic Chemistry
Physical and Theoretical Chemistry
Condensed Matter Physics
Abstract
The inorganic solid electrolytes Li 6.25-x Al 0.25 La 3 Zr 2-x Ta x O 12 (LALZT) with various Ta contents (x) are synthesized using conventional solid-state reaction method at 1200 °C for different holding times. The effect of holding time and Al/Ta co-doping on the crystal structure, microstructure and ionic conductivity of the LALZT solid electrolytes is discussed. The LALZT powder with a fine particle size and narrow particle distribution is prepared by the high-energy ball milling. Suitable Al/Ta doping stabilizes the cubic phase and enhances the ionic conductivity of the LALZT. The short holding time is 6 h due to the equal ionic conductivity for the LALZT samples sintered for 6 h or 10 h by the solid-state reaction method. The highest ionic conductivity can be obtained for the optimized composition of Li 5.85 Al 0.25 La 3 Zr 1.6 Ta 0.4 O 12 . The excellent ionic conductivity indicates that Al/Ta co-doped LALZT could be a promising electrolyte candidate for all-solid-state Li-ion batteries in practical application. • Cubic-phase LALZT powder shows a fine particle size and narrow particle distribution. • The optimized holding time is 6 h for the conventional solid-state method. • The optimized composition of Li 5.85 Al 0.25 La 3 Zr 1.6 Ta 0.4 O 12 shows better ionic conductivity of 4.59 × 10 -4 S cm -1 at 20 °C.
Top-30
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5 publications, 62.5%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Yan S. et al. Enhancing the ionic conductivity and stabilizing cubic structure of garnet-type Li6.25-xAl0.25La3Zr2-xTaxO12 by Al/Ta co-doping // Journal of Solid State Chemistry. 2021. Vol. 295. p. 121949.
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Yan S., Cui Q., Sun C., Hao J., CHU X., Xie H., Lin S., Zhang X. Enhancing the ionic conductivity and stabilizing cubic structure of garnet-type Li6.25-xAl0.25La3Zr2-xTaxO12 by Al/Ta co-doping // Journal of Solid State Chemistry. 2021. Vol. 295. p. 121949.
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TY - JOUR
DO - 10.1016/j.jssc.2020.121949
UR - https://doi.org/10.1016/j.jssc.2020.121949
TI - Enhancing the ionic conductivity and stabilizing cubic structure of garnet-type Li6.25-xAl0.25La3Zr2-xTaxO12 by Al/Ta co-doping
T2 - Journal of Solid State Chemistry
AU - Yan, Shuhao
AU - Cui, Qianyue
AU - Sun, Chao-Chao
AU - Hao, Junjie
AU - CHU, XIANGCHENG
AU - Xie, Haoran
AU - Lin, Shengzeng
AU - Zhang, Xiaodong
PY - 2021
DA - 2021/03/01 00:00:00
PB - Elsevier
SP - 121949
VL - 295
SN - 0022-4596
SN - 1095-726X
ER -
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@article{2021_Yan,
author = {Shuhao Yan and Qianyue Cui and Chao-Chao Sun and Junjie Hao and XIANGCHENG CHU and Haoran Xie and Shengzeng Lin and Xiaodong Zhang},
title = {Enhancing the ionic conductivity and stabilizing cubic structure of garnet-type Li6.25-xAl0.25La3Zr2-xTaxO12 by Al/Ta co-doping},
journal = {Journal of Solid State Chemistry},
year = {2021},
volume = {295},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/j.jssc.2020.121949},
pages = {121949},
doi = {10.1016/j.jssc.2020.121949}
}