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DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells
Singlet oxygen ((1)O(2)) causes a major fraction of the parasitic chemistry during the cycling of non‐aqueous alkali metal‐O(2) batteries and also contributes to interfacial reactivity of transition‐metal oxide intercalation compounds. We introduce DABCOnium, the mono alkylated form of 1,4‐diazabicy...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6563493/ https://www.ncbi.nlm.nih.gov/pubmed/30884063 http://dx.doi.org/10.1002/anie.201901869 |
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author | Petit, Yann K. Leypold, Christian Mahne, Nika Mourad, Eléonore Schafzahl, Lukas Slugovc, Christian Borisov, Sergey M. Freunberger, Stefan A. |
author_facet | Petit, Yann K. Leypold, Christian Mahne, Nika Mourad, Eléonore Schafzahl, Lukas Slugovc, Christian Borisov, Sergey M. Freunberger, Stefan A. |
author_sort | Petit, Yann K. |
collection | PubMed |
description | Singlet oxygen ((1)O(2)) causes a major fraction of the parasitic chemistry during the cycling of non‐aqueous alkali metal‐O(2) 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 (1)O(2) 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–O(2) batteries and greatly reduces (1)O(2) related parasitic chemistry as demonstrated for the Li–O(2) cell. |
format | Online Article Text |
id | pubmed-6563493 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-65634932019-06-17 DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells Petit, Yann K. Leypold, Christian Mahne, Nika Mourad, Eléonore Schafzahl, Lukas Slugovc, Christian Borisov, Sergey M. Freunberger, Stefan A. Angew Chem Int Ed Engl Communications Singlet oxygen ((1)O(2)) causes a major fraction of the parasitic chemistry during the cycling of non‐aqueous alkali metal‐O(2) 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 (1)O(2) 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–O(2) batteries and greatly reduces (1)O(2) related parasitic chemistry as demonstrated for the Li–O(2) cell. John Wiley and Sons Inc. 2019-04-09 2019-05-13 /pmc/articles/PMC6563493/ /pubmed/30884063 http://dx.doi.org/10.1002/anie.201901869 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
spellingShingle | Communications Petit, Yann K. Leypold, Christian Mahne, Nika Mourad, Eléonore Schafzahl, Lukas Slugovc, Christian Borisov, Sergey M. Freunberger, Stefan A. DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title | DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title_full | DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title_fullStr | DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title_full_unstemmed | DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title_short | DABCOnium: An Efficient and High‐Voltage Stable Singlet Oxygen Quencher for Metal–O(2) Cells |
title_sort | dabconium: an efficient and high‐voltage stable singlet oxygen quencher for metal–o(2) cells |
topic | Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6563493/ https://www.ncbi.nlm.nih.gov/pubmed/30884063 http://dx.doi.org/10.1002/anie.201901869 |
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