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@ARTICLE{Windmller:844871,
      author       = {Windmüller, Anna and Dellen, Christian and Lobe, Sandra
                      and Tsai, Chih-Long and Möller, Sören and Sohn, Yoo Jung
                      and Wettengl, Nadine and Finsterbusch, Martin and
                      Uhlenbruck, Sven and Guillon, Olivier},
      title        = {{T}hermal stability of 5 {V} {L}i{C}o{M}n{O} 4 spinels
                      with {L}i{F} additive},
      journal      = {Solid state ionics},
      volume       = {320},
      issn         = {0167-2738},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2018-02217},
      pages        = {378 - 386},
      year         = {2018},
      abstract     = {The thermal stability of LiCoMnO4 and LiCoMnO4 with
                      $1 wt.-\%$ LiF as an additive was compared upon heating in
                      air. The stoichiometries of samples heat-treated at 700,
                      800, 900 and 1000 °C were analyzed by means of
                      inductively coupled plasma optical emission spectroscopy for
                      cation contents, inert gas fusion analysis for oxygen, and
                      nuclear reaction analysis for fluorine contents, revealing
                      that the sample chemistries remain constant except for
                      oxygen. The oxygen content of the samples correlates with
                      the Li2MnO3 secondary phase fraction, which forms upon
                      heating, as is shown by X-ray powder diffraction. For each
                      temperature, a greater amount of Li2MnO3 is formed in the
                      samples with LiF addition than in the single LiCoMnO4
                      samples. In situ high-temperature X-ray powder diffraction
                      between 650 and 950 °C demonstrates that LiCoMnO4 with
                      LiF addition exhibits the same kind of decomposition
                      reactions upon heating and cooling as the sample without LiF
                      addition. However, for the samples with LiF addition, the
                      formation of the decomposition product, Li2MnO3, is
                      accelerated due to the excess Li through LiF addition, i.e.
                      the stability of the spinel phase decreases due to the
                      supply of lithium. Since lithium is consumed by Li2MnO3
                      formation and fluorine remains in the samples, we can also
                      conclude that the fluorine anion is incorporated into the
                      spinel or Li2MnO3 phase upon heating LiCoMnO4 and LiF
                      together.},
      cin          = {ZEA-3 / IEK-1 / JARA-ENERGY},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ZEA-3-20090406 / I:(DE-Juel1)IEK-1-20101013 /
                      $I:(DE-82)080011_20140620$},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000436219600048},
      doi          = {10.1016/j.ssi.2018.03.026},
      url          = {https://juser.fz-juelich.de/record/844871},
}