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Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy

Horwitz, Gabriela et al · Royal Society of Chemistry · 2020

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In situ subtractively normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments were performed simultaneously with electrochemical experiments relevant to Li–air battery operation on gold electrodes in two glyme-based electrolytes: diglyme (DG) and tetraglyme (TEGDME), tested under different operational conditions. The results show that TEGDME is intrinsically unstable and decomposes at potentials between 3.6 and 3.9 V vs. Li+/Li even in the absence of oxygen and lithium ions, while DG shows a better stability, and only decomposes at 4.0 V vs. Li+/Li in the presence of oxygen. The addition of water to the DG based electrolyte exacerbates its decomposition, probably due to the promotion of singlet oxygen formation. Fil: Horwitz, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina Fil: Calvo, Ernesto Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina

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APA 7

Horwitz, G. E. A. (2020). Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy. http://hdl.handle.net/11336/142300

MLA

Horwitz, Gabriela et al. "Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy." 2020. http://hdl.handle.net/11336/142300.

Chicago

Horwitz, Gabriela et al. 2020. "Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy.". http://hdl.handle.net/11336/142300.

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Horwitz, G. E. A. 2020, Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy, Royal Society of Chemistry, available at: http://hdl.handle.net/11336/142300 [Accessed 7 Aug. 2026].

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Title
Electrochemical stability of glyme-based electrolytes for Li-O2batteries studied by: In situ infrared spectroscopy
Author / contributors
Horwitz, Gabriela et al
Publisher
Royal Society of Chemistry
Publication year
2020
ISSN
1463-9076
ISSN
1463-9076
Language
English

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