On the role of the microporous layer in PEMFC operation
By J. Gostick, Marios Ioannidis, Michael W. Fowler, M. Pritzker. 2009
272 citations recorded by the source corpus.
Abstract The condition of liquid water breakthrough at the cathode of polymer electrolyte fuel cells (PEMFC) is studied experimentally and data on corresponding water saturation and capillary pressure are provided for gas diffusion layers (GDL) with and without a microporous layer (MPL). The data demonstrate that the GDL saturation at water breakthrough is drastically reduced from ca. 25% to ca. 5% in the presence of MPL. This observation is consistent with considerations of invasion percolation in finite-size lattices and suggests an explanation for the role of MPL in improving PEMFC performance at high current densities.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/5d23d4a8c52d8ac8d0217732accb62cfab021846
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In Biomedical Engineering
In Electrical and Electronic Engineering
In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- A Review of Water Management in Polymer Electrolyte Membrane Fuel Cells (2009, background): “the assumption that water condensation occurs hardly in hydrophobic pores smaller than 1 μm, GDLs with an additional MPL have lower water saturation levels, leading to higher gas transport at the CL [231,243,256].”
- Influence of properties of gas diffusion layers on the performance of polymer electrolyte-based unit (2011, methodology): “Figure 14 shows the liquid saturation (s) – capillary pressure (Pc) curves of the PTFE treated and untreated GDL of Toray 090 (without MPL) measured by Gostick et al. [34].”