Abstract
The New European Driving Cycle (NEDC) induces remarkable degradation of proton exchange membrane fuel cells. The long-term cyclic dynamic potential polarizations based on NEDC with four different Epeak are investigated on the multilayer C/Cr coated SS316L (C/Cr/SS) bipolar plates. C/Cr/SS achieves superior small ICRs and low corrosion rate with Epeak up to 1.12 V, demonstrating great potential for commercial applications. However, mild local corrosion occurs at 1.16 V and accelerates at 1.22 V, resulted by the dissolution initiated at the heterogeneous interface. The present work offers new insights into NEDC-based potential polarization induced degradation on C/Cr/SS.
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