Jeong, Seong Uk Cho, Eun Ae Kim, Hyoung-Jhun Lim, Tae-Hoon Oh, In-Hwan Kim, Sung Hyun 2024-01-21T02:36:12Z 2024-01-21T02:36:12Z 2021-09-01 2006-07-14 0378-7753 https://pubs.kist.re.kr/handle/201004/135330 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. (c) 2005 Published by Elsevier B.V. English ELSEVIER SCIENCE BV PEMFC Effects of cathode open area and relative humidity on the performance of air-breathing polymer electrolyte membrane fuel cells Article 10.1016/j.jpowsour.2005.09.044 1 JOURNAL OF POWER SOURCES, v.158, no.1, pp.348 - 353 JOURNAL OF POWER SOURCES 158 1 348 353 scie scopus 000238964200040 2-s2.0-33745072666 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article PEMFC PEMFC portable fuel cell air breathing passive feeding cathode structure