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@ARTICLE{Wandt:810840,
      author       = {Wandt, Johannes and Jakes, Peter and Granwehr, Josef and
                      Gasteiger, Hubert A. and Eichel, Rüdiger-A.},
      title        = {{S}inglet {O}xygen {F}ormation during the {C}harging
                      {P}rocess of an {A}protic {L}ithium-{O}xygen {B}attery},
      journal      = {Angewandte Chemie / International edition},
      volume       = {55},
      number       = {24},
      issn         = {1433-7851},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2016-03423},
      pages        = {6892 - 6895},
      year         = {2016},
      abstract     = {Aprotic lithium–oxygen (Li–O2) batteries have attracted
                      considerable attention in recent years owing to their
                      outstanding theoretical energy density. A major challenge is
                      their poor reversibility caused by degradation reactions,
                      which mainly occur during battery charge and are still
                      poorly understood. Herein, we show that singlet oxygen
                      (1Δg) is formed upon Li2O2 oxidation at potentials above
                      3.5 V. Singlet oxygen was detected through a reaction with
                      a spin trap to form a stable radical that was observed by
                      time- and voltage-resolved in operando EPR spectroscopy in
                      a purpose-built spectroelectrochemical cell. According to
                      our estimate, a lower limit of approximately $0.5 \%$ of
                      the evolved oxygen is singlet oxygen. The occurrence of
                      highly reactive singlet oxygen might be the long-overlooked
                      missing link in the understanding of the electrolyte
                      degradation and carbon corrosion reactions that occur during
                      the charging of Li–O2 cells.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000377921400015},
      pubmed       = {pmid:27145532},
      doi          = {10.1002/anie.201602142},
      url          = {https://juser.fz-juelich.de/record/810840},
}