Journal article

Authors list: Schürmann, A; Luerßen, B; Mollenhauer, D; Janek, J; Schröder, D

Publication year: 2021

Pages: 12445-12464

Journal: Chemical Reviews

Volume number: 121

Issue number: 20

ISSN: 0009-2665

DOI Link: https://doi.org/10.1021/acs.chemrev.1c00139

Publisher: American Chemical Society

Abstract: 
Rechargeable metal/O-2 batteries have long been considered a promising future battery technology in automobile and stationary applications. However, they suffer from poor cyclability and rapid degradation. A recent hypothesis is the formation of singlet oxygen (O-1(2)) as the root cause of these issues. Validation, evaluation, and understanding of the formation of O-1(2) are therefore essential for improving metal/O-2 batteries. We review literature and use Marcus theory to discuss the possibility of singlet oxygen formation in metal/O-2 batteries as a product from (electro)chemical reactions. We conclude that experimental evidence is yet not fully conclusive, and side reactions can play a major role in verifying the existence of singlet oxygen. Following an in-depth analysis based on Marcus theory, we conclude that O-1(2) can only originate from a chemical step. A direct electrochemical generation, as proposed by others, can be excluded on the basis of theoretical arguments.

Harvard Citation style: Schürmann, A., Luerßen, B., Mollenhauer, D., Janek, J. and Schröder, D. (2021) Singlet Oxygen in Electrochemical Cells: A Critical Review of Literature and Theory, Chemical Reviews, 121(20), pp. 12445-12464. https://doi.org/10.1021/acs.chemrev.1c00139

APA Citation style: Schürmann, A., Luerßen, B., Mollenhauer, D., Janek, J., & Schröder, D. (2021). Singlet Oxygen in Electrochemical Cells: A Critical Review of Literature and Theory. Chemical Reviews. 121(20), 12445-12464. https://doi.org/10.1021/acs.chemrev.1c00139