کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1287235 | 973218 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Transport mechanisms and voltage losses in PEMFC membranes and at electrodes: A discussion of open-circuit irreversibility Transport mechanisms and voltage losses in PEMFC membranes and at electrodes: A discussion of open-circuit irreversibility](/preview/png/1287235.png)
The transport properties of the membrane and the related dissipative phenomena significantly affect the performance of polymeric electrolyte membrane fuel cells. In this work the transport mechanisms taking place inside the membrane and the interaction of these with the adjacent electrodes will be analysed in some detail to gain a better understanding and control of cell performance and particularly of open-circuit voltage losses, which can be anything up to 30% of the effective voltage of an operating cell, as such an understanding could lead to significant technological improvements.Here we present an analytical and interpretative description to try to identify the irreversible electrode phenomena under open-circuit conditions in terms of a dissipative steady-state and related “parasitic currents”.
Journal: Journal of Power Sources - Volume 159, Issue 2, 22 September 2006, Pages 861–868