0
Research Papers

The Resistive Properties of Proton Exchange Membrane Fuel Cells With Stainless Steel Bipolar Plates

[+] Author and Article Information
Shuo-Jen Lee

Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan, Taiwan 320, R.O.C.mesjl@saturn.yzu.edu.tw

Kung-Ting Yang, Yu-Ming Lee, Chi-Yuan Lee

Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan, Taiwan 320, R.O.C.

J. Fuel Cell Sci. Technol 7(4), 041004 (Apr 06, 2010) (5 pages) doi:10.1115/1.3179760 History: Received May 03, 2008; Revised March 12, 2009; Published April 06, 2010; Online April 06, 2010

In this research, electrochemical impedance spectroscopy is employed to monitor the resistance of a fuel cell during operation with different operating conditions and different materials for the bipolar plates. The operating condition variables are cell humidity, pure oxygen or air as oxidizer, and current density. Three groups of single cells were tested: a graphite cell, a stainless steel cell (treated and original), and a thin, small, treated stainless steel cell. A treated cell here means using an electrochemical treatment to improve bipolar plate anticorrosion capability. From the results, the ohmic resistance of a fully humidified treated stainless steel fuel cell is 0.28Ωcm2. Under the same operating conditions, the ohmic resistance of the graphite and the original fuel cell are each 0.1Ωcm2 and that of the small treated cell is 0.3Ωcm2. Cell humidity has a greater influence on resistance than does the choice of oxidizer; furthermore, resistance variation due to humidity effects is more serious with air support. From the above results, fuel cells fundamental phenomenon such as ohmic resistance, charge transfer resistance, and mass transport resistance under different operating conditions could be evaluated.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Nyquist plot of PEM fuel cell

Grahic Jump Location
Figure 2

Experimental procedures

Grahic Jump Location
Figure 3

Schematic plot of the surface treatment method

Grahic Jump Location
Figure 4

Impedance spectra of a graphite H2/air PEM fuel cell

Grahic Jump Location
Figure 5

Impedance spectra for the H2/air and flow rate effects. (a) Results of the Nyquist plot and (b) results of the phase angle plot

Grahic Jump Location
Figure 6

Equivalent circuit of EIS plot simulation

Grahic Jump Location
Figure 7

Impedance spectra for cell humidity effects

Grahic Jump Location
Figure 8

Treated cell I-V and I-P curves under different cell RH values

Grahic Jump Location
Figure 9

Impedance spectra for a stainless steel cell and a graphite cell-25 cm2

Grahic Jump Location
Figure 10

Impedance spectra for a stainless steel cell and a graphite cell-4 cm2

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In