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@ARTICLE{Homann:878611,
      author       = {Homann, Gerrit and Stolz, Lukas and Neuhaus, Kerstin and
                      Winter, Martin and Kasnatscheew, Johannes},
      title        = {{E}ffective {O}ptimization of {H}igh {V}oltage
                      {S}olid‐{S}tate {L}ithium {B}atteries by {U}sing
                      {P}oly(ethylene oxide)‐{B}ased {P}olymer {E}lectrolyte
                      with {S}emi‐{I}nterpenetrating {N}etwork},
      journal      = {Advanced functional materials},
      volume       = {30},
      number       = {46},
      issn         = {1616-3028},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2020-02949},
      pages        = {2006289 -},
      year         = {2020},
      abstract     = {Solid polymer electrolytes (SPEs) are promising candidates
                      for the realization of lithium metal batteries. However, the
                      popular SPE based on poly(ethylene oxide) (PEO) reveals a
                      “voltage noise”‐failure during charge, for example,
                      with high energy/high voltage electrodes like
                      LiNi0.6Mn0.2Co0.2O2 (NMC622), which can be attributed to
                      short‐circuits via penetrating Li dendrites. This failure
                      disappears when integrating PEO‐based SPE in a semi
                      interpenetrating network, which mainly consists of PEO
                      units, as well. In this work, it is shown that this SPE
                      allows performance improvement via elimination of the
                      crystalline domains without significant sacrifice of
                      mechanical integrity. Hence, a highly amorphous SPE can be
                      obtained by a simple increase of plasticizing Li salts,
                      which overall is beneficial, not only for the ionic
                      conductivity, but also the homogeneity, while remaining
                      mechanically stable and solid in its original shape even
                      after storage at 60 °C for 7 days. These aspects are
                      crucial for the performance of the modified SPE as they can
                      suppress the failure‐causing Li dendrite penetration while
                      the electrochemical aspects, that is, anodic stability, are
                      rather unaffected by the modification and remain stable (4.6
                      V vs Li│Li+). Overall, this optimized SPE enables stable
                      cycling performance in NMC622│SPE│Li cells, even at 40
                      °C operation temperature.},
      cin          = {IEK-12},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000563908700001},
      doi          = {10.1002/adfm.202006289},
      url          = {https://juser.fz-juelich.de/record/878611},
}