Simon Cleghorn

TL;DR: In this paper, the mechanical response of fuel cell proton exchange membranes subjected to a single hygro-thermal duty cycle in a fuel cell assembly is investigated through numerical means, and the behavior of the membrane with temperature and humidity dependent material properties is simulated under temperature and moisture loading and unloading conditions.

TL;DR: In this article, the mechanical properties of a perfluorosulfonic acid (PFSA) membrane have been investigated at different humidities and temperatures in a custom-designed environmental chamber, where tensile tests were conducted to determine Young's modulus, the proportional limit stress (yield strength), break stress, and break strain.

TL;DR: In this article, the mechanical response of proton exchange membranes in a fuel cell assembly is investigated under humidity cycles at a constant temperature (85°C), and the behavior of the membrane under hydration-dehydration cycles is simulated by imposing a humidity gradient from the cathode to the anode.

TL;DR: In this article, the performance degradation rate of a single cell was determined to be between 4 and 6μV−h−1, at the operating current density of 800−mA−cm−2.

TL;DR: In this article, the hygrothermo-mechanical properties and response of a class of reinforced perfluorosulfonic acid membranes (PFSA), that has potential application as an electrolyte in polymer fuel cells, are investigated through both experimental and numerical modeling means.