Projects per year
Abstract
Rechargeable Li–O2 batteries have amongst the highest formal energy and could store significantly more energy than other rechargeable batteries in practice if at least a large part of their promise could be realized. Realization, however, still faces many challenges than can only be overcome by fundamental understanding of the processes taking place. Here, we review recent advances in understanding the chemistry of the Li–O2 cathode and provide a perspective on dominant research needs. We put particular emphasis on issues that are often grossly misunderstood: realistic performance metrics and their reporting as well as identifying reversibility and quantitative measures to do so. Parasitic reactions are the prime obstacle for reversible cell operation and have recently been identified to be predominantly caused by singlet oxygen and not by reduced oxygen species as thought before. We discuss the far reaching implications of this finding on electrolyte and cathode stability, electrocatalysis, and future research needs.
Original language | English |
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Pages (from-to) | 6716–6729 |
Journal | Chemical Science |
Volume | 8 |
DOIs | |
Publication status | Published - 31 Jul 2017 |
Fields of Expertise
- Advanced Materials Science
Fingerprint
Dive into the research topics of 'Mechanism and performance of lithium–oxygen batteries – a perspective'. Together they form a unique fingerprint.Projects
- 3 Finished
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OMICON - Organic Mixed Ion and Electron Conductors for High-Energy Batteries
1/04/15 → 31/03/20
Project: Research project
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BiLiLuBat - Bimodal Li Air Battery [Original in Deutsch: Entwicklung von bimodaler Hochenergie- Lithium-Luft Batterie]
1/09/14 → 31/08/17
Project: Research project
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FWF - HELiOx - MIXED CONDUCTING ELECTRODES FOR HIGH ENERGY LITHIUM-O2 BATTERIES
1/09/14 → 31/08/17
Project: Research project
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Oxygen Redox and Singlet Oxygen in Non-aqueous Battery Chemistries
Stefan Freunberger (Speaker)
5 Aug 2019Activity: Talk or presentation › Invited talk › Science to science
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Singlet Oxygen in Non-aqueous Battery Chemistries
Stefan Freunberger (Speaker)
10 Jun 2018 → 14 Jun 2018Activity: Talk or presentation › Talk at workshop, seminar or course › Science to science