Investigation of Multiple Degradation Mechanisms of a Proton Exchange Membrane Fuel Cell under Dynamic Operation

In this paper, a new voltage aging model for the polymer electrolyte membrane fuel cell (PEMFC), which includes multiple degradation mechanisms proton exchange cells, is proposed. The parameters are identified using curve-fitting procedure based on long-term experimental data modular stack under New European Driving Cycle (NEDC). A good fit was found between and data, with R-squared values greater than 0.99 all simulation cases. Moreover, according to sensitivity analysis, most sensitive load current, followed by time. effect of operating temperature performance, degradation, lifetime investigated. After 300 h, significant performance loss detected. When raised 75 °C, becomes worse. Based simulated profiles at 55 °C PEMFCs have reached end their useful lives 1100 h 600 respectively. indicates that capable forecasting how long will last specified operational conditions drive cycles.