Journal of Materials Science: Materials in Electronics, volume 32, issue 5, pages 6369-6378
Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries
Mahnaz Ashuri
1
,
Mohammad Golmohammad
2
,
Alireza Soleimany Mehranjani
2, 3
,
Mohammadali Faghihi Sani
1
2
Renewable Energy Department, Niroo Research Institute, Tehran, Iran
|
Publication type: Journal Article
Publication date: 2021-02-05
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 2.8
ISSN: 09574522, 1573482X
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering
Abstract
Cubic phase Li7La3Zr2O12 (LLZO) is a promising solid electrolyte for next-generation Li-ion batteries. In this work, the combustion sol–gel technique is used to prepare an Al-doped LLZO solid electrolyte. The crystal structure is investigated, and the cubic phase is confirmed. Densification properties were investigated using SEM and optical dilatometry. The densification of the Al-doped sample takes place in two stages through two different shrinkage rates. Using 0.25 mol Al-dopant 94% relative density is achieved at 1100 °C. The effect of Al-doping on electrochemical properties is investigated in detail using AC impedance spectroscopy. The result indicates that the optimum concentration of the Al dopant in this study is 0.25 mol and, exhibits a high bulk conductivity of 5.89 × 10–4 S cm−1 at 25 °C. Also, the grain boundary conductivity for the 0.25 mol Al-doped LLZO sintered at 1100 °C is improved by half an order of magnitude comparing to Al free sample. The effect of a secondary phase formation on the electrochemical response is identified using the distribution of relaxation times (DRT) method. The time constant responses for different resistive components are characterised as a function of frequency and capacitance and the values are then quantified using an equivalent circuit model.
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- We do not take into account publications without a DOI.
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- Statistics recalculated weekly.
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Ashuri M. et al. Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries // Journal of Materials Science: Materials in Electronics. 2021. Vol. 32. No. 5. pp. 6369-6378.
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Ashuri M., Golmohammad M., Soleimany Mehranjani A., Faghihi Sani M. Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries // Journal of Materials Science: Materials in Electronics. 2021. Vol. 32. No. 5. pp. 6369-6378.
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TY - JOUR
DO - 10.1007/s10854-021-05353-3
UR - https://doi.org/10.1007/s10854-021-05353-3
TI - Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries
T2 - Journal of Materials Science: Materials in Electronics
AU - Ashuri, Mahnaz
AU - Golmohammad, Mohammad
AU - Soleimany Mehranjani, Alireza
AU - Faghihi Sani, Mohammadali
PY - 2021
DA - 2021/02/05 00:00:00
PB - Springer Nature
SP - 6369-6378
IS - 5
VL - 32
SN - 0957-4522
SN - 1573-482X
ER -
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@article{2021_Ashuri,
author = {Mahnaz Ashuri and Mohammad Golmohammad and Alireza Soleimany Mehranjani and Mohammadali Faghihi Sani},
title = {Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries},
journal = {Journal of Materials Science: Materials in Electronics},
year = {2021},
volume = {32},
publisher = {Springer Nature},
month = {feb},
url = {https://doi.org/10.1007/s10854-021-05353-3},
number = {5},
pages = {6369--6378},
doi = {10.1007/s10854-021-05353-3}
}
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Ashuri, Mahnaz, et al. “Al-doped Li7La3Zr2O12 garnet-type solid electrolytes for solid-state Li-Ion batteries.” Journal of Materials Science: Materials in Electronics, vol. 32, no. 5, Feb. 2021, pp. 6369-6378. https://doi.org/10.1007/s10854-021-05353-3.