TY - JOUR AB - 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. AU - Peng, Zhangquan AU - Freunberger, Stefan Alexander AU - Hardwick, Laurence J. AU - Chen, Yuhui AU - Giordani, Vincent AU - Bardé, Fanny AU - Novák, Petr AU - Graham, Duncan AU - Tarascon, Jean-Marie AU - Bruce, Peter G. ID - 7315 IS - 28 JF - Angewandte Chemie International Edition SN - 1433-7851 TI - Oxygen reactions in a non-aqueous Li+ electrolyte VL - 50 ER -