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@ARTICLE{Jakes:127349,
      author       = {Jakes, Peter and Cohn, Gil and Ein-Eli, Yair and Scheiba,
                      Frieder and Ehrenberg, Helmut and Eichel, Rüdiger-A.},
      title        = {{L}imitation of {D}ischarge {C}apacity and {M}echanisms of
                      {A}ir-{E}lectrode {D}eactivation in {S}ilicon-{A}ir
                      {B}atteries},
      journal      = {ChemSusChem: chemistry $\&$ sustainability, energy $\&$
                      materials},
      volume       = {5},
      number       = {11},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2012-00349},
      pages        = {2278–2285},
      year         = {2012},
      abstract     = {The electrocatalytical process at the air cathode in novel
                      silicon–air batteries using the room-temperature ionic
                      liquid hydrophilic 1-ethyl-3-methylimidazolium
                      oligofluorohydrogenate [EMI⋅2.3 HF⋅F] as electrolyte and
                      highly doped silicon wafers as anodes is investigated by
                      electrochemical means, X-ray photoelectron spectroscopy
                      (XPS), and electron paramagnetic resonance (EPR)
                      spectroscopy. The results obtained by XPS and EPR provide a
                      model to describe the limited discharge capacity by means of
                      a mechanism of air-electrode deactivation. In that respect,
                      upon discharge the silicon-air battery′s cathode is not
                      only blocked by silicon oxide reduction products, but also
                      experiences a major modification in the MnO2 catalyst
                      nature. The proposed modification of the MnO2 catalyst by
                      means of a MnF2 surface layer greatly impacts the Si–air
                      performance and describes a mechanism relevant for other
                      metal–air batteries, such as the lithium–air. Moreover,
                      the ability for this deactivation layer to form is greatly
                      impacted by water in the electrolyte.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {152 - Renewable Energies (POF2-152)},
      pid          = {G:(DE-HGF)POF2-152},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000311056800026},
      doi          = {10.1002/cssc.201200199},
      url          = {https://juser.fz-juelich.de/record/127349},
}