Development and performance evaluation of a high temperature proton exchange membrane fuel cell with stamped 304 stainless steel bipolar plates

Chen Yu Chen, Sheng Chun Su

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

In this work, a high temperature proton exchange membrane fuel cell (HT-PEMFC) with stamped SS304 bipolar plates is successfully developed. Its performance was evaluated under two types of gaskets at different assembly torques and air stoichiometric ratios. The rates of pressure loss at a torque of 7 N-m with 50 Shore A hardness gaskets was 2.0 × 10−3 MPa min−1, which is acceptable. The best performance of the developed HT-PEMFC with stamped SS304 bipolar plates was 228.33 mW cm−2, which approaches the performance of HT-PEMFCs with graphite bipolar plates. The optimal air stoichiometric ratio for the HT-PEMFC with stamped SS304 bipolar plates was 4.0, which is higher than that for proton exchange membrane fuel cells with CNC milled graphite bipolar plates. This is probably because of the deformation of the flow channels under the assembly compression force, which causes an elevated gas-diffusion drag in the flow channels. After the test, it was observed that some products of corrosion reaction formed on the surface of the SS304 bipolar plate. This phenomenon may lead to a decrease in the operating life of the HT-PEMFC.

Original languageEnglish
Pages (from-to)13430-13439
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number29
DOIs
StatePublished - 19 Jul 2018

Keywords

  • Electrochemical impedance spectroscopy
  • Fuel cell performance
  • High temperature proton exchange membrane fuel cell
  • Metallic bipolar plate
  • Pressure holding test
  • Stamped bipolar plate

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