Effects of cathode open area and relative humidity on the performance of air-breathing polymer electrolyte membrane fuel cells

Seong Uk Jeong, Eun Ae Cho, Hyoung Jhun Kim, Tae Hoon Lim, In Hwan Oh, Sung Hyun Kim

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)348-353
Number of pages6
JournalJournal of Power Sources
Volume158
Issue number1
DOIs
Publication statusPublished - 2006 Jul 14

Keywords

  • Air breathing
  • Cathode structure
  • PEMFC
  • Passive feeding
  • Portable fuel cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Effects of cathode open area and relative humidity on the performance of air-breathing polymer electrolyte membrane fuel cells'. Together they form a unique fingerprint.

Cite this