Journal of Alloys and Compounds, volume 854, pages 157143
Co-doping effects of Ba2+ and Ta5+ on the microstructure and ionic conductivity of garnet-type solid state electrolytes
Publication type: Journal Article
Publication date: 2021-02-01
Journal:
Journal of Alloys and Compounds
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 6.2
ISSN: 09258388
Materials Chemistry
Metals and Alloys
Mechanical Engineering
Mechanics of Materials
Abstract
A series of garnet-type electrolytes with the compositions of Li6.6+yLa3–yBayZr1.6Ta0.4O12 (0 ≤ y ≤ 0.08) and Li6.4+yLa3–yBayZr1.4Ta0.6O12 (0 ≤ y ≤ 0.08) were obtained through pressureless sintering method at 1230 °C for 1 h successfully. The microstructure and electr0.4O12performance of the electrolytes were characterized and the co-doping effects of Ba2+ and Ta5+ were investigated. The substantially promoted ionic conductivity was achieved by doping Ba2+ into the Li6.4La3Zr1.4Ta0.6O12 ceramic. Ba2+ dopant made the LLZTO electrolyte a higher Li+ concentration ascribed to the valence gap between Ba2+ and La3+. This facilitated the grain growth so that the electrolytes could be sintered densely in a relatively short sintering time. Meanwhile. The Li+ transportation channel would be enlarged due to the larger ion radius of Ba2+ compared to that of La3+. The higher Li+ concentration and the broader Li+ transportation channel contributed primarily to the improvement of the electrical performance of LLZTO electrolytes. The specimen with the constituent of Li6.46La2.94Ba0.06Zr1.4Ta0.6O12 exhibited the highest conductivity of 6.04 × 10−4 S cm−1 and the lowest activation energy of 0.27 eV.
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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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Wang C. et al. Co-doping effects of Ba2+ and Ta5+ on the microstructure and ionic conductivity of garnet-type solid state electrolytes // Journal of Alloys and Compounds. 2021. Vol. 854. p. 157143.
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Wang C., Lin P., Gong Yu., Liu Z., Lin T., He P. Co-doping effects of Ba2+ and Ta5+ on the microstructure and ionic conductivity of garnet-type solid state electrolytes // Journal of Alloys and Compounds. 2021. Vol. 854. p. 157143.
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TY - JOUR
DO - 10.1016/j.jallcom.2020.157143
UR - https://doi.org/10.1016/j.jallcom.2020.157143
TI - Co-doping effects of Ba2+ and Ta5+ on the microstructure and ionic conductivity of garnet-type solid state electrolytes
T2 - Journal of Alloys and Compounds
AU - Wang, Ce
AU - Lin, Pan-Pan
AU - Gong, Yu
AU - Liu, Zhan-Guo
AU - Lin, Tiesong
AU - He, P.
PY - 2021
DA - 2021/02/01 00:00:00
PB - Elsevier
SP - 157143
VL - 854
SN - 0925-8388
ER -
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@article{2021_Wang,
author = {Ce Wang and Pan-Pan Lin and Yu Gong and Zhan-Guo Liu and Tiesong Lin and P. He},
title = {Co-doping effects of Ba2+ and Ta5+ on the microstructure and ionic conductivity of garnet-type solid state electrolytes},
journal = {Journal of Alloys and Compounds},
year = {2021},
volume = {854},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.jallcom.2020.157143},
pages = {157143},
doi = {10.1016/j.jallcom.2020.157143}
}