This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/26345 in citations.
Please use the identifier: http://dx.doi.org/10.1149/1945-7111/abc76c in citations.
CrN/Cr-Coated Steel Plates for High-Temperature Polymer Electrolyte Fuel Cells: Performance and Durability
CrN/Cr-Coated Steel Plates for High-Temperature Polymer Electrolyte Fuel Cells: Performance and Durability
This paper investigates the general performance and durability performance of a high-temperature polymer electrolyte fuel cell (HT-PEFC) with CrN/Cr-coated SS316L as bipolar plates and compares this with the bare SS316L and graphite bipolar plates. Polarization curves are conducted every 200 h durin...
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Personal Name(s): | Li, Ruiyu (Corresponding author) |
---|---|
Cai, Yun / Reimer, Uwe / Wippermann, Klaus / Shao, Zhigang / Lehnert, Werner | |
Contributing Institute: |
Elektrochemische Verfahrenstechnik; IEK-14 |
Published in: | Journal of the Electrochemical Society, 167 (2020) 14, S. 144507 - |
Imprint: |
Bristol
IOP Publishing
2020
|
DOI: |
10.1149/1945-7111/abc76c |
Document Type: |
Journal Article |
Research Program: |
Fuel Cells |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1149/1945-7111/abc76c in citations.
This paper investigates the general performance and durability performance of a high-temperature polymer electrolyte fuel cell (HT-PEFC) with CrN/Cr-coated SS316L as bipolar plates and compares this with the bare SS316L and graphite bipolar plates. Polarization curves are conducted every 200 h during the 1000 h durability tests for evaluating the overall performances of the HT-PEFCs with different types of bipolar plates. An electrochemical model based on polarization curves, combined with electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM), is used for understanding the degradation mechanisms at play. The CrN/Cr-coated SS316L bipolar plates show excellent corrosion resistance and performance in a real HT-PEFC. Thereby, the degradation rate decrease from ca. 16% of the highest output power with the bare metallic bipolar plates and graphite bipolar plates to almost zero with the CrN/Cr-coated steel bipolar plate. |