DABCOnium: An efficient and high-voltage stable singlet oxygen quencher for metal-O2 cells

Y.K. Petit, C. Leypold, N. Mahne, E. Mourad, L. Schafzahl, C. Slugovc, S.M. Borisov, S.A. Freunberger, Angewandte Chemie International Edition 58 (2019) 6535–6539.

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Journal Article | Published | English
Author
Petit, Yann K.; Leypold, Christian; Mahne, Nika; Mourad, Eléonore; Schafzahl, Lukas; Slugovc, Christian; Borisov, Sergey M.; Freunberger, Stefan AlexanderIST Austria
Abstract
Singlet oxygen (1O2) causes a major fraction of the parasitic chemistry during the cycling of non‐aqueous alkali metal‐O2 batteries and also contributes to interfacial reactivity of transition‐metal oxide intercalation compounds. We introduce DABCOnium, the mono alkylated form of 1,4‐diazabicyclo[2.2.2]octane (DABCO), as an efficient 1O2 quencher with an unusually high oxidative stability of ca. 4.2 V vs. Li/Li+. Previous quenchers are strongly Lewis basic amines with too low oxidative stability. DABCOnium is an ionic liquid, non‐volatile, highly soluble in the electrolyte, stable against superoxide and peroxide, and compatible with lithium metal. The electrochemical stability covers the required range for metal–O2 batteries and greatly reduces 1O2 related parasitic chemistry as demonstrated for the Li–O2 cell.
Publishing Year
Date Published
2019-05-13
Journal Title
Angewandte Chemie International Edition
Volume
58
Issue
20
Page
6535-6539
ISSN
IST-REx-ID

Cite this

Petit YK, Leypold C, Mahne N, et al. DABCOnium: An efficient and high-voltage stable singlet oxygen quencher for metal-O2 cells. Angewandte Chemie International Edition. 2019;58(20):6535-6539. doi:10.1002/anie.201901869
Petit, Y. K., Leypold, C., Mahne, N., Mourad, E., Schafzahl, L., Slugovc, C., … Freunberger, S. A. (2019). DABCOnium: An efficient and high-voltage stable singlet oxygen quencher for metal-O2 cells. Angewandte Chemie International Edition, 58(20), 6535–6539. https://doi.org/10.1002/anie.201901869
Petit, Yann K., Christian Leypold, Nika Mahne, Eléonore Mourad, Lukas Schafzahl, Christian Slugovc, Sergey M. Borisov, and Stefan Alexander Freunberger. “DABCOnium: An Efficient and High-Voltage Stable Singlet Oxygen Quencher for Metal-O2 Cells.” Angewandte Chemie International Edition 58, no. 20 (2019): 6535–39. https://doi.org/10.1002/anie.201901869.
Y. K. Petit et al., “DABCOnium: An efficient and high-voltage stable singlet oxygen quencher for metal-O2 cells,” Angewandte Chemie International Edition, vol. 58, no. 20, pp. 6535–6539, 2019.
Petit YK, Leypold C, Mahne N, Mourad E, Schafzahl L, Slugovc C, Borisov SM, Freunberger SA. 2019. DABCOnium: An efficient and high-voltage stable singlet oxygen quencher for metal-O2 cells. Angewandte Chemie International Edition. 58(20), 6535–6539.
Petit, Yann K., et al. “DABCOnium: An Efficient and High-Voltage Stable Singlet Oxygen Quencher for Metal-O2 Cells.” Angewandte Chemie International Edition, vol. 58, no. 20, Wiley, 2019, pp. 6535–39, doi:10.1002/anie.201901869.
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