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@INPROCEEDINGS{Granwehr:1037565,
      author       = {Granwehr, Josef},
      title        = {{M}agnetic resonance of electrochemical components and
                      devices},
      reportid     = {FZJ-2025-00753},
      year         = {2025},
      abstract     = {Magnetic resonance (MR) is a powerful analytical tool in
                      electrochemistry due to its selectivity and versatility. If
                      studying materials for electrochemical applications, similar
                      opportunities and limitations exist as for other materials.
                      However, some established paradigms for data analysis and
                      interpretation need to be questioned for ion-conducting
                      materials with stochastic occupancy. Since
                      performance-limiting processes often occur at interfaces,
                      one would like to study working cells, ideally during
                      operation. In this case various additional challenges are
                      introduced, such as electrically conducting components that
                      cause losses in common MR setups, or changing impedances
                      during cycling and aging that alter the Q of the
                      resonator.In this talk, strategies will be discussed to
                      identify and mitigate some of these challenges. For some
                      questions, a compromise is offered by studying components of
                      electrochemical systems, where interfaces are present yet
                      losses can be minimised. NMR and EPR examples of battery
                      applications will be presented where sample preparation and
                      protocols are adapted to address specific questions. Laplace
                      inversion without non-negativity constraint is demonstrated
                      as a useful tool to analyse relaxation and diffusion data,
                      and the importance of an integrated approach combining MR
                      and theory for data interpretation is highlighted.},
      month         = {Jan},
      date          = {2025-01-17},
      organization  = {Konstantin Ivanov Intercontinental
                       Seminar, Online (France), 17 Jan 2025 -
                       17 Jan 2025},
      subtyp        = {Invited},
      cin          = {IET-1},
      cid          = {I:(DE-Juel1)IET-1-20110218},
      pnm          = {1223 - Batteries in Application (POF4-122) / DFG project
                      G:(GEPRIS)422726248 - SPP 2248: Polymer-basierte Batterien
                      (422726248) / InOPlaBat - In-Situ und Operando Plating
                      Detektion in Batterien (13XP0352B)},
      pid          = {G:(DE-HGF)POF4-1223 / G:(GEPRIS)422726248 /
                      G:(BMBF)13XP0352B},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/1037565},
}