Investigation of self-humidified and dead-ended anode proton exchange membrane fuel cell performance using electrochemical impedance spectroscopy
By Saeed Asghari and Mohammad Reza Ashraf Khorasani and Isar Dashti
Published in International Journal of Hydrogen Energy
2016
Abstract
Self-humidified dead-ended anode proton exchange membrane fuel cell is increasingly being used in some special applications due to its need for simpler and lower cost subsystems. However, the performance of such a fuel cell is more affected by the operational parameters and conditions than the traditional proton exchange membrane fuel cells. Therefore, realizing the most effective parameters and determining their optimum values are essential. In the present study, electrochemical impedance spectroscopy is used to examine the effect of working conditions on the performance of a self-humidified dead-ended anode fuel cell. Working temperature, air stoichiometry, and purge interval are selected to assess their effects on the fuel cell performance. The results show that the performance enhances by increasing the working temperature up to 50