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Oxygen Reactions in a Non‐Aqueous Li + Electrolyte
Author(s) -
Peng Zhangquan,
Freunberger Stefan A.,
Hardwick Laurence J.,
Chen Yuhui,
Giordani Vincent,
Bardé Fanny,
Novák Petr,
Graham Duncan,
Tarascon JeanMarie,
Bruce Peter G.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201100879
Subject(s) - electrolyte , aqueous solution , oxygen , electrode , chemistry , content (measure theory) , oxygen evolution , inorganic chemistry , electrochemistry , organic chemistry , mathematics , mathematical analysis
Taking the shortcut : Spectroscopic data (see picture) provide direct evidence that in non‐aqueous Li + electrolyte, O 2 is reduced to O 2 − , which then forms LiO 2 on the electrode surface which disproportionates to Li 2 O 2 . On charging, Li 2 O 2 decomposes directly, in a one‐step reaction to evolve O 2 and does not pass through LiO 2 as an intermediate.