Deactivation of redox mediators in lithium-oxygen batteries by singlet oxygen

Won-Jin Kwak; Hun Kim; Yann K. Petit; Christian Leypold; Trung Thien Nguyen; Nika Mahne; Paul Redfern; Larry A. Curtiss; Hun-Gi Jung; Sergey M. Borisov; Stefan A. Freunberger; Yang-Kook Sun

doi:10.1038/s41467-019-09399-0

Nature Communications (Mar 2019)

Deactivation of redox mediators in lithium-oxygen batteries by singlet oxygen

Won-Jin Kwak,
Hun Kim,
Yann K. Petit,
Christian Leypold,
Trung Thien Nguyen,
Nika Mahne,
Paul Redfern,
Larry A. Curtiss,
Hun-Gi Jung,
Sergey M. Borisov,
Stefan A. Freunberger,
Yang-Kook Sun

Affiliations

Won-Jin Kwak: Department of Energy Engineering, Hanyang University
Hun Kim: Department of Energy Engineering, Hanyang University
Yann K. Petit: Institute for Chemistry and Technology of Materials, Graz University of Technology
Christian Leypold: Institute for Chemistry and Technology of Materials, Graz University of Technology
Trung Thien Nguyen: Department of Energy Engineering, Hanyang University
Nika Mahne: Institute for Chemistry and Technology of Materials, Graz University of Technology
Paul Redfern: Materials Science Division, Argonne National Laboratory
Larry A. Curtiss: Materials Science Division, Argonne National Laboratory
Hun-Gi Jung: Center for Energy Convergence Research, Green City Technology Institute, Korea Institute of Science and Technology
Sergey M. Borisov: Institute for Analytical Chemistry and Food Chemistry, Graz University of Technology
Stefan A. Freunberger: Institute for Chemistry and Technology of Materials, Graz University of Technology
Yang-Kook Sun: Department of Energy Engineering, Hanyang University

DOI: https://doi.org/10.1038/s41467-019-09399-0
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 8

Abstract

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Redox mediators can enhance redox reactions in Li-O2 batteries; however, their gradual degradation remains unclear. Here the authors show that organic redox mediators are decomposed by singlet oxygen formed during cycling, indicating a strategy for the rational design of stable redox mediators.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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