Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell
Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN
Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell
In this paper, a novel accelerated test method was proposed to analyze the durability of MEA, considering the actual operation of the fuel cell vehicle. The proposed method includes 7 working conditions: open circuit voltage (OCV), idling, rated output, overload, idling-rated cycle, idling-overload cycle, and OCV-idling cycle. The experimental results indicate that the proposed method can effectively destroy the MEA in a short time (165 h). Moreover, the degradation mechanism of MEA was analyzed by measuring the polarization curve, CV, SEM and TEM. This paper may provide a new research direction for improving the durability of fuel cell.
polymer electrolyte membrane fuel cell / accelerated life-time test / load cycling test / durability
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