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@ARTICLE{Gerlitz:1005280,
      author       = {Gerlitz, Anna I. and Diddens, Diddo and Grünebaum, Mariano
                      and Heuer, Andreas and Winter, Martin and Wiemhöfer,
                      Hans-Dieter},
      title        = {{P}olypropylene carbonate-based electrolytes as model for a
                      different approach towards improved ion transport properties
                      for novel electrolytes},
      journal      = {Physical chemistry, chemical physics},
      volume       = {25},
      number       = {6},
      issn         = {1463-9076},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2023-01398},
      pages        = {4810 - 4823},
      year         = {2023},
      abstract     = {Linear poly(alkylene carbonates) such as polyethylene
                      carbonate (PEC) and polypropylene carbonate (PPC) have
                      gained increasing interest due to their remarkable ion
                      transport properties such as high Li+ transference numbers.
                      The cause of these properties is not yet fully understood
                      which makes it challenging to replicate them in other
                      polymer electrolytes. Therefore, it is critical to
                      understand the underlying mechanisms in polycarbonate
                      electrolytes such as PPC. In this work we present insights
                      from impedance spectroscopy, transference number
                      measurements, PFG-NMR, IR and Raman spectroscopy as well as
                      molecular dynamics simulations to address this issue. We
                      find that in addition to plasticization, the lithium ion
                      coordination by the carbonate groups of the polymer is
                      weakened upon gelation, leading to a rapid exhange of the
                      lithium ion solvation shell and consequently a strong
                      increase of the conductivity. Moreover, we study the impact
                      of the anions by employing different conducting salts.
                      Interestingly, while the total conductivity decreases with
                      increasing anion size, the reverse trend can be observed for
                      the lithium ion transference numbers. Via our holistic
                      approach, we demonstrate that this behavior can be
                      attributed to differences in the collective ion dynamics.},
      cin          = {IEK-12},
      ddc          = {540},
      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},
      pubmed       = {36692378},
      UT           = {WOS:000917744100001},
      doi          = {10.1039/D2CP03756D},
      url          = {https://juser.fz-juelich.de/record/1005280},
}