Paper Title:
Life-Limiting Aspects of the Corrosion of Metallic Bipolar Plates for PEM Fuel Cells
  Abstract

In proton exchange membrane fuel cells (PEMFCs), the bipolar plates supply the reactant gases through the flow channels to the electrodes and serve the purpose of electrochemically connecting one cell to another in the electrochemical cell stack. Requirements of the bipolar plate material are: high values of electronic conductivity; high values of thermal conductivity; high mechanical strength; impermeability to reactant gases; resistance to corrosion; and low cost of automated production. Metallic materials meet many of these requirements but the challenge has been in obtaining the required corrosion resistance. In the paper, six metallic materials were investigated as potential bipolar plate materials. The results showed that the corrosion rates were too high even for the most corrosion resistant metals (SS316L and grade 2 Ti), and that coatings would be required.

  Info
Periodical
Advanced Materials Research (Volumes 41-42)
Edited by
Xiaozhi Hu, Brent Fillery, Tarek Qasim and Kai Duan
Pages
469-475
DOI
10.4028/www.scientific.net/AMR.41-42.469
Citation
Y. Wang, D. O. Northwood, "Life-Limiting Aspects of the Corrosion of Metallic Bipolar Plates for PEM Fuel Cells", Advanced Materials Research, Vols. 41-42, pp. 469-475, 2008
Online since
April 2008
Export
Price
$32.00
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