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On the Challenge of Electrolyte Solutions for Li–Air Batteries: Monitoring Oxygen Reduction and Related Reactions in Polyether Solutions by Spectroscopy and EQCM

Sharon, Daniel, Etacheri, Vinodkumar, Garsuch, Arnd, Afri, Michal, Frimer, Aryeh A., Aurbach, Doron·2013·The Journal of Physical Chemistry Letters

Abstract

Polyether solvents are considered interesting and important candidates for Li-O2 battery systems. Discharge of Li-O2 battery systems forms Li oxides. Their mechanism of formation is complex. The stability of most relevant polar aprotic solvents toward these Li oxides is questionable. Specially high surface area carbon electrodes were developed for the present work. In this study, several spectroscopic tools and in situ measurements using electrochemical quartz crystal microbalance (EQCM) were employed to explore the discharge-charge processes and related side reactions in Li-O2 battery systems containing electrolyte solutions based on triglyme/lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) electrolyte solutions. The systematic mechanism of lithium oxides formation was monitored. A combination of Fourier transform infrared (FTIR), NMR, and matrix-assisted laser desorption/ionization (MALDI) measurements in conjunction with electrochemical studies demonstrated the intrinsic instability and incompatibility of polyether solvents for Li-air batteries.

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Metadata

Authors
Sharon, D., Etacheri, V., Garsuch, A., Afri, M., Frimer, A. A., & Aurbach, D.
Venue
The Journal of Physical Chemistry Letters
Published
2012-12-19
Volume
4
Issue
1
Pages
127-131
ISSN
1948-7185 (ISSN-L)
OpenAlex
W2320745993
Cited by
158
References
0
FWCI
12.21
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: On the Challenge of Electrolyte Solutions for Li–Air Batteries: Monitoring Oxygen Reduction and Related Reactions in Polyether Solutions by Spectroscopy and EQCM. https://app.cochat.ai/papers/10.1021/jz3017842
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Sharon, D., Etacheri, V., Garsuch, A., Afri, M., Frimer, A. A., & Aurbach, D. (2013). On the Challenge of Electrolyte Solutions for Li–Air Batteries: Monitoring Oxygen Reduction and Related Reactions in Polyether Solutions by Spectroscopy and EQCM. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/jz3017842

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