TY  - JOUR
AU  - Li, Ruiyu
AU  - Cai, Yun
AU  - Reimer, Uwe
AU  - Wippermann, Klaus
AU  - Shao, Zhigang
AU  - Lehnert, Werner
TI  - CrN/Cr-Coated Steel Plates for High-Temperature Polymer Electrolyte Fuel Cells: Performance and Durability
JO  - Journal of the Electrochemical Society
VL  - 167
IS  - 14
SN  - 1945-7111
CY  - Bristol
PB  - IOP Publishing
M1  - FZJ-2020-04886
SP  - 144507 -
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000591005800001
DO  - DOI:10.1149/1945-7111/abc76c
UR  - https://juser.fz-juelich.de/record/888409
ER  -