Observation of electrochemically active Fe3+/Fe4+ in LiCo0.8Fe0.2MnO4 by in situ Mössbauer spectroscopy and X-ray absorption spectroscopy.

@article{Drger2018ObservationOE,
  title={Observation of electrochemically active Fe3+/Fe4+ in LiCo0.8Fe0.2MnO4 by in situ M{\"o}ssbauer spectroscopy and X-ray absorption spectroscopy.},
  author={Christoph Dr{\"a}ger and Florian Sigel and Ralf Witte and Robert Van der Kruk and Lukas Alexander Pfaffmann and Stefan Mangold and Valeriu M Mereacre and Michael J. Knapp and Helmut Ehrenberg and Sylvio Indris},
  journal={Physical chemistry chemical physics : PCCP},
  year={2018},
  volume={21 1},
  pages={
          89-95
        }
}
LiCo0.8Fe0.2MnO4 has been investigated as an active material for the positive electrode in lithium-ion batteries (LIBs) with a discharge potential of around 5 V (vs. Li+|Li). After synthesis by a Pechini based sol-gel route, the structural and morphological properties have been investigated by X-ray diffraction, scanning electron microscopy, 7Li MAS NMR spectroscopy, and 57Fe Mössbauer spectroscopy. With galvanostatic cycling, it was possible to obtain a specific discharge capacity of 117 mA h… CONTINUE READING
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