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

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.

Bibliographic Details
Main Authors: 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
Format: Article
Language:English
Published: Nature Publishing Group 2019-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-09399-0