ACS Applied Energy Materials, volume 2, issue 8, pages 6051-6059
Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries
Dmitry P. Rupasov
1
,
Yet-Ming Chiang
3
,
2
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation
|
Publication type: Journal Article
Publication date: 2019-07-16
Journal:
ACS Applied Energy Materials
Q1
Q2
SJR: 1.467
CiteScore: 10.3
Impact factor: 5.4
ISSN: 25740962
Materials Chemistry
Electrochemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Chemical Engineering (miscellaneous)
Abstract
The effect of salt concentration in diglyme-based electrolytes on cycling performance of promising KVOPO4 and K1.69Mn[Fe(CN)6]0.85·0.4H2O positive electrodes (cathodes) and a hard carbon negative electrode (anode) for next-generation potassium-ion (K-ion) batteries is investigated. A decrease in free solvent molecule number with increasing electrolyte concentration is found, which results in a better aluminum current collector stability, formation of thinner solid electrolyte interface (SEI) passivation layers, and further inhibition of solvent degradation redox processes occurring at the electrode surface upon cycling. The KVOPO4 and K1.69Mn[Fe(CN)6]0.85·0.4H2O cathodes exhibit an enhanced specific discharge capacity (54 and 105 mA·h·g–1, respectively) in K-ion cells at the highest electrolyte concentrations (2 and 2.5 M KPF6 in diglyme, respectively) at a 0.1 C rate. However, the behavior of the hard carbon anode is noticeably affected by the salt concentration over the first few cycles, a phenomenon te...
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Katorova N. S. et al. Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries // ACS Applied Energy Materials. 2019. Vol. 2. No. 8. pp. 6051-6059.
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Katorova N. S., Fedotov S. S., Rupasov D. P., Luchinin N. D., Delattre B., Chiang Y., Abakumov A. M., Stevenson K. J. Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries // ACS Applied Energy Materials. 2019. Vol. 2. No. 8. pp. 6051-6059.
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TY - JOUR
DO - 10.1021/acsaem.9b01173
UR - https://doi.org/10.1021/acsaem.9b01173
TI - Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries
T2 - ACS Applied Energy Materials
AU - Katorova, Natalia S
AU - Fedotov, Stanislav S.
AU - Rupasov, Dmitry P.
AU - Luchinin, Nikita D
AU - Delattre, Benjamin
AU - Chiang, Yet-Ming
AU - Abakumov, Artem M.
AU - Stevenson, Keith J
PY - 2019
DA - 2019/07/16
PB - American Chemical Society (ACS)
SP - 6051-6059
IS - 8
VL - 2
SN - 2574-0962
ER -
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@article{2019_Katorova,
author = {Natalia S Katorova and Stanislav S. Fedotov and Dmitry P. Rupasov and Nikita D Luchinin and Benjamin Delattre and Yet-Ming Chiang and Artem M. Abakumov and Keith J Stevenson},
title = {Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries},
journal = {ACS Applied Energy Materials},
year = {2019},
volume = {2},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/acsaem.9b01173},
number = {8},
pages = {6051--6059},
doi = {10.1021/acsaem.9b01173}
}
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Katorova, Natalia S., et al. “Effect of Concentrated Diglyme-Based Electrolytes on the Electrochemical Performance of Potassium-Ion Batteries.” ACS Applied Energy Materials, vol. 2, no. 8, Jul. 2019, pp. 6051-6059. https://doi.org/10.1021/acsaem.9b01173.
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