Failure mechanism of PEM fuel cell under high back pressures operation

Proton exchange membrane fuel cells (PEMFCs) are expected to function under relatively higher back pressures for targeting higher outpower. Under this condition, the durability of fuel cells will be a huge challenge for commercialization. In our study, a 1000-h durability experiment was performed on a PEMFC to investigate the durability under high back pressures. A semi-empirical fuel cell polarization curve model was used to separate the...