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On the current distribution at the channel - rib scale in polymer-electrolyte fuel cells

Belgacem, Najib and Pauchet, Joël and Prat, Marc On the current distribution at the channel - rib scale in polymer-electrolyte fuel cells. (2018) International Journal of Hydrogen Energy, 43 (10). 5112-5123. ISSN 0360-3199

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Official URL: https://doi.org/10.1016/j.ijhydene.2018.01.097


Experimental results based on in-situ measurements at the interface between the catalyst layer and the gas diffusion layer (GDL) on the cathode side at the channel e rib scale show an interesting variation of the current density distribution as the mean current density is increased. It is found that the local current density below the rib median axis corresponds to a maximum at low to intermediate mean current densities and to a minimum when the mean current density is sufficiently high. Also, the higher is the current density, the more marked the minimum. From numerical simulations, it is shown that the current density distribution inversion phenomenon is strongly correlated to the liquid water zone development within the GDL.

Item Type:Article
HAL Id:hal-02001563
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université Grenoble Alpes - UGA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:14 Jan 2019 14:42

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