Investigating the Use of Stamped Metal Foils as Bipolar Plates in PEM Fuel Cell Stacks

Rachel T. Backes, David T. McMillan, Andrew M. Herring, John R. Berger, John A. Turner, Heli Wang

Research output: Contribution to conferencePaperpeer-review

Abstract

The process of stamping stainless steel bipolar plates is developed from initial plate design through manufacturing and use in a fuel cell stack. A stamped design incorporating a serpentine flow field for the cathode and an interdigitated flow field for the anode is designed. This bipolar plate consists of only one piece of thin stainless steel sheet. The process of rubber-pad stamping was chosen to reduce shearing of the thin sheet. Dies were designed and made. Stainless steel plates were stamped, but stress were higher than anticipated and die failure was observed. The plates were tested both in-situ and by doing simulated fuel cell testing. Although sealing was an issue due to lack of proper gaskets and endplates, tests determined that the stamped bipolar plates will work in a PEM fuel cell stack. Dies were redesigned to improve durability. Gaskets and endplates were designed to complete the stack construction.

Original languageAmerican English
Pages47-54
Number of pages8
DOIs
StatePublished - 2008
EventASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2008 - Denver, United States
Duration: 16 Jun 200818 Jun 2008

Conference

ConferenceASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2008
Country/TerritoryUnited States
CityDenver
Period16/06/0818/06/08

Bibliographical note

Publisher Copyright:
© 2008 by ASME and U.S. Government.

NREL Publication Number

  • NREL/CP-2A0-48835

Keywords

  • bipolar plate
  • fuel cell
  • stainless steel

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