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Dr. Zhangquan Peng, Dr. Stefan A. Freunberger, Dr. Laurence J. Hardwick, Yuhui Chen, Dr. Vincent Giordani, Dr. Fanny Bardé, Prof. Dr. Petr Novák, Prof. Duncan Graham, Prof. Jean-Marie Tarascon and Prof. Peter G. Bruce Oxygen Reactions in a Non-Aqueous Li+ Electrolyte Angewandte Chemie International Edition 50

Version of Record online: 23 MAY 2011 | DOI: 10.1002/anie.201100879

Thumbnail image of graphical abstract

Taking the shortcut: Spectroscopic data (see picture) provide direct evidence that in non-aqueous Li+ electrolyte, O2 is reduced to O2, which then forms LiO2 on the electrode surface which disproportionates to Li2O2. On charging, Li2O2 decomposes directly, in a one-step reaction to evolve O2 and does not pass through LiO2 as an intermediate.

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