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

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.