Metal foam flow fields have shown great potential in improving the performance of proton exchange membrane (PEM) fuel cells, while their effect on oxygen transport process remains inadequately understood. In this study, metal (under zero-humidity operating conditions) is simulated by using a three-dimensional multi-species lattice Boltzmann model. Comparison done between field and conventional ...

The contact pressure between bipolar plates (BPPs) and a membrane electrode assembly (MEA) has key impact on Proton Exchange Membrane Fuel Cell (PEMFC) performance. However, it is difficult to obtain the combined with operating temperature action via finite element analysis (FEA) model, resulting in limited calculation resources for problem of multiscale thermo-mechanical coupled full-dimension...

Self-healing proton-exchange membranes (PEMs) made of poly(vinyl alcohol) (PVA) and Nafion were synthesized using the freeze-thaw method. Since PVA is more selective towards water than methanol, blend membrane successfully reduced methanol permeability improved selectivity compared to recast membrane. The addition also helped self-heal by promoting formation hydrogen bonds. In contrast pristine...