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@INPROCEEDINGS{Eppler:1021699,
      author       = {Eppler, Michael and Hanauer, Matthias and Gerlin,
                      Christophe and Berner, Ulrich and Kadyk, Thomas and
                      Eikerling, Michael},
      title        = {{P}arametrization and {V}alidation of a 2{D}, {T}ransient,
                      {T}wo- {P}hase {MEA} {M}odel with {EIS} {C}apability},
      reportid     = {FZJ-2024-00945},
      year         = {2023},
      abstract     = {Proton exchange membrane fuel cells (PEMFC) are promising
                      energy converters, offering both sustainability and
                      efficiency. Achieving optimal performance, however, requires
                      a deep understanding of the underlying cause-effect
                      relationships within the functional layers. One effective
                      approach for validating models that capture the complex
                      physics of PEMFC is through differential cells, which reduce
                      computational effort by allowing along-the-channel-effects
                      to be discarded.In this study, we present a 2-dimensional,
                      transient, non-isothermal PEMFC model in Comsol Multiphysics
                      that enables the disentanglement of loss contributions,
                      facilitating effective material screening. Our model
                      accounts for multiphase transport to provide insights into
                      water management and mass transport. To ensure robust
                      parameterization, we conducted a multitude of both ex-situ
                      and in-situ experiments, reducing our reliance on
                      often-contradictory literature data.We fitted our model to a
                      wide range of polarization curves obtained under operating
                      conditions spanning temperatures of 50-80 °C and relative
                      humidities of 40-100 $\%.$ Notably, our model is able to
                      simulate impedance spectra, which enables the
                      disentanglement of processes with different time constants
                      [4]. This approach provides a unique opportunity to study
                      the electrochemical behavior and offers a more profound
                      understanding of PEMFC performance limitations. The thorough
                      parameterization process and validation against a broad
                      range of operating conditions and impedance spectra render
                      our model reliable and effective for industry professionals
                      and researchers. We also highlight shortcomings and physics
                      aspects that require further research to deepen insights and
                      enable faster industrialization cycles.},
      month         = {Oct},
      date          = {2023-10-08},
      organization  = {244th ECS Meeting, Gothenburg
                       (Sweden), 8 Oct 2023 - 12 Oct 2023},
      subtyp        = {After Call},
      cin          = {IEK-13},
      cid          = {I:(DE-Juel1)IEK-13-20190226},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)6},
      doi          = {10.34734/FZJ-2024-00945},
      url          = {https://juser.fz-juelich.de/record/1021699},
}