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@ARTICLE{Herbers:1024758,
      author       = {Herbers, Lukas and Minář, Jaroslav and Stuckenberg,
                      Silvan and Küpers, Verena and Berghus, Debbie and Nowak,
                      Sascha and Winter, Martin and Bieker, Peter},
      title        = {{T}he {I}nfluence of {P}olyethylene {O}xide {D}egradation
                      in {P}olymer‐{B}ased {E}lectrolytes for {NMC} and
                      {L}ithium {M}etal {B}atteries},
      journal      = {Advanced energy $\&$ sustainability research},
      volume       = {4},
      number       = {12},
      issn         = {2699-9412},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2024-02424},
      pages        = {2300153},
      year         = {2023},
      abstract     = {A multilayered ternary solid polymer electrolyte (TSPE) is
                      presented. First, the influence of polyethylene oxide
                      degradation on cell failure, development of subsequent
                      volatile degradation products, and cell impedance is
                      analyzed. The low electrochemical stability window/oxidative
                      stability (≥3.8 V) results in side-chain oxidation and
                      loss of active material. Subsequently, electrolyte stability
                      is improved and a thin-film (≤50 μm) TSPE with three
                      functional layers is developed to match the wide-ranging
                      electrolyte requirements toward Li metal anodes and
                      different cathode materials like LiNi0.6Mn0.2Co0.2O2 and
                      LiFePO4 (NCM622, LFP). The high-voltage stability of
                      ≥4.75 V makes the TSPE a promising candidate in
                      high-voltage applications. Because of high Coulombic
                      efficiencies in NMC622‖Li metal $(99.7\%)$ and LFP‖Li
                      metal $(99.9\%)$ cells, the presented electrolyte enables
                      stable long-term cycling with great capacity retention of
                      $86\%$ and $94\%,$ respectively. The temperature stability
                      of >300 °C and the capability to prevent high surface
                      area Li and dendrite formation (even at an areal capacity
                      utilization of >40 mAh cm−2) contribute to high safety
                      under a wide range of conditions.},
      cin          = {IEK-12},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001079310200001},
      doi          = {10.1002/aesr.202300153},
      url          = {https://juser.fz-juelich.de/record/1024758},
}