Fabrication and Performance Evaluation of Miniaturized Proton Exchange Membrane (PEM) Fuel Cells

Tao Zhang, Pei Wen Li, Qing Ming Wang, Laura Schaefer, Minking K. Chyu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Two types of miniaturized PEM fuel cells are designed and characterized in comparison with a compact commercial fuel cell device in this paper. One has Nafion® membrane electrolyte sandwiched by two brass bipolar plates with micromachined meander-like gas channels. The cross-sectional area of the gas flow channel is approximately 250 by 250 (μm). The other uses the same Nafion® membrane and anode structure, but in stead of the brass plate, a thin stainless steel plate with perforated round holes is used at cathode side. The new cathode structure is expected to allow oxygen (air) being supplied by free-convection mass transfer. The characteristic curves of the fuel cell devices are measured. The activation loss and ohmic loss of the fuel cells have been estimated using empirical equations. Critical issues such as flow arrangement, water removing and air feeding modes concerning the fuel cell performance are investigated in this research. The experimental results demonstrate that the miniaturized fuel cell with free air convection mode is a simple and reliable way for fuel cell operation that could be employed in potential applications although the maximum achievable current density is less favorable due to limited mass transfer of oxygen (air). The relation between the fuel cell dimensions and the maximum achievable current density is also discussed with respect to free-convection mode of air feeding.

Original languageEnglish (US)
Title of host publicationFuel Cell Science, Engineering and Technology
Subtitle of host publicationFirst International Conference on Fuel Cell Science, Engineering and Technology
EditorsR.K. Shah, S.G. Kandlikar
Pages129-136
Number of pages8
StatePublished - Dec 1 2003
Externally publishedYes
EventFirst International Conference on Fuel Cell Science, Engineering and Technology - Rochester, NY, United States
Duration: Apr 21 2003Apr 23 2003

Publication series

NameFuel Cell Science, Engineering and Technology

Other

OtherFirst International Conference on Fuel Cell Science, Engineering and Technology
CountryUnited States
CityRochester, NY
Period4/21/034/23/03

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

Fingerprint Dive into the research topics of 'Fabrication and Performance Evaluation of Miniaturized Proton Exchange Membrane (PEM) Fuel Cells'. Together they form a unique fingerprint.

  • Cite this

    Zhang, T., Li, P. W., Wang, Q. M., Schaefer, L., & Chyu, M. K. (2003). Fabrication and Performance Evaluation of Miniaturized Proton Exchange Membrane (PEM) Fuel Cells. In R. K. Shah, & S. G. Kandlikar (Eds.), Fuel Cell Science, Engineering and Technology: First International Conference on Fuel Cell Science, Engineering and Technology (pp. 129-136). (Fuel Cell Science, Engineering and Technology).