Open Access
Nanomaterials, volume 9, issue 8, pages 1086
Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties
Publication type: Journal Article
Publication date: 2019-07-29
General Chemical Engineering
General Materials Science
Abstract
Sodium superionic conductor (NASICON)-type lithium aluminum germanium phosphate (LAGP) has attracted increasing attention as a solid electrolyte for all-solid-state lithium-ion batteries (ASSLIBs), due to the good ionic conductivity and highly stable interface with Li metal. However, it still remains challenging to achieve high density and good ionic conductivity in LAGP pellets by using conventional sintering methods, because they required high temperatures (>800 °C) and long sintering time (>6 h), which could cause the loss of lithium, the formation of impurity phases, and thus the reduction of ionic conductivity. Herein, we report the utilization of a spark plasma sintering (SPS) method to synthesize LAGP pellets with a density of 3.477 g cm−3, a relative high density up to 97.6%, and a good ionic conductivity of 3.29 × 10−4 S cm−1. In contrast to the dry-pressing process followed with high-temperature annealing, the optimized SPS process only required a low operating temperature of 650 °C and short sintering time of 10 min. Despite the least energy and short time consumption, the SPS approach could still achieve LAGP pellets with high density, little voids and cracks, intimate grain–grain boundary, and high ionic conductivity. These advantages suggest the great potential of SPS as a fabrication technique for preparing solid electrolytes and composite electrodes used in ASSLIBs.
Top-30
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1 publication, 6.67%
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Citations by publishers
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5 publications, 33.33%
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3 publications, 20%
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2 publications, 13.33%
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Wiley
2 publications, 13.33%
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Springer Nature
1 publication, 6.67%
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Royal Society of Chemistry (RSC)
1 publication, 6.67%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 6.67%
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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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Zhu H. et al. Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties // Nanomaterials. 2019. Vol. 9. No. 8. p. 1086.
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Zhu H., Prasad A., Doja S., Bichler L., Liu J. Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties // Nanomaterials. 2019. Vol. 9. No. 8. p. 1086.
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TY - JOUR
DO - 10.3390/nano9081086
UR - https://doi.org/10.3390/nano9081086
TI - Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties
T2 - Nanomaterials
AU - Zhu, Hongzheng
AU - Prasad, Anil
AU - Doja, Somi
AU - Bichler, Lukas
AU - Liu, Jian
PY - 2019
DA - 2019/07/29 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 1086
IS - 8
VL - 9
SN - 2079-4991
ER -
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@article{2019_Zhu,
author = {Hongzheng Zhu and Anil Prasad and Somi Doja and Lukas Bichler and Jian Liu},
title = {Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties},
journal = {Nanomaterials},
year = {2019},
volume = {9},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {jul},
url = {https://doi.org/10.3390/nano9081086},
number = {8},
pages = {1086},
doi = {10.3390/nano9081086}
}
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Zhu, Hongzheng, et al. “Spark Plasma Sintering of Lithium Aluminum Germanium Phosphate Solid Electrolyte and its Electrochemical Properties.” Nanomaterials, vol. 9, no. 8, Jul. 2019, p. 1086. https://doi.org/10.3390/nano9081086.