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Research on ECSA Degradation Model for PEM Fuel Cell under Vehicle Conditions

Fuel cell vehicles are a trend in the development of new energy vehicles in the future. However, the degradation of PEMFC has always been one of the reasons restricting its development. This paper studies a PEMFC degradation model based on ECSA to determine the appropriate working state to reduce the rapid degradation of PEMFC. This model mainly simulates the dissolution and maturation of platinum clusters in the catalytic layer and explains the decline of ECSA. The simulation results show that the model can well correspond to the phenomenon of accelerated aging of the fuel cell due to variable load under vehicle operating conditions. It is suggested that the model facilitates the development of a hybrid energy management system for vehicles aimed at fuel cell degradation.