Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1287576 | Journal of Power Sources | 2006 | 6 Pages |
Abstract
For portable applications, the, characteristics of passive air-breathing PEMFCs were investigated by examining effects of cathode open area and relative humidity on the cell performance. Among the single cells with cathode open area from 52 to 94%, the single cell with the open area of 77% exhibited the highest performance. The cell performance was improved with increasing RH of atmosphere from 20 to 100% in the low current region while lowered in high current region. Those results were related with the mass transport of oxygen from the atmosphere to the catalyst layer and the degree of membrane hydration determining the ionic conductivity of the membrane.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Seong Uk Jeong, Eun Ae Cho, Hyoung-Jhun Kim, Tae-Hoon Lim, In-Hwan Oh, Sung Hyun Kim,