Abstract
The paper dealing with aging of polymer electrolyte membrane fuel cells is divided in two parts. We present first general comments on the significant issue in an attempt to introduce the topic and to provide basic elements of methodology for investigation: aging mechanisms, reversible or irreversible damage, tests for investigation, and the case of cyclic operations. Then, two examples of cycled operations are presented and discussed for the case of long period cycles—as for day-night applications—operated to single cells. The current density is cycled between two levels in the first example, whereas the second example concerns cycling of relative humidity of inlet air in two fuel cells of different sizes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
