... and experimental data (in normal, drying, or flooding cases) are about 0.034 and 0.473, respectively. The fast Fourier transform–electrochemical impedance spectroscopy technique (FFT-EIS) was used as an alternative technique that is simple and efficient to electrochemical impedance spectroscopy (EIS). The PEMFCs...

... is susceptible to flooding. Fig. 2 I–V characteristics and O 2 gains for different MPL configurations using dry inlet air ( T cell  = 70 °C, RH a /RH c  = 64%/0, and ξ a / ξ f  = 2.0/1.43). The cathode GDL properties of cells ( a )–( d ) are given in Table 1 . Fig. 3 I–V characteristics...

.... The results also show that a cathode microporous layer can significantly reduce the liquid saturation at the cathode backing layer which, in turn, reduces water flooding at the cathode. Narayanan , S. R. , Valdez , T. I. , and Rohatgi , N. , 2003 , Handbook of Fuel Cells: Fundamentals...

... in the stack, resulting in voltage disparities. The aim of this study, thus, is to correlate the temperature distribution in the stack to local voltage degradations, such as membrane drying and electrodes flooding. Indeed, the temperature has a strong impact on the water distribution in the cells because...

... distribution of the entire module as well as of the oxygen concentration and relative humidity at a specific cell. Airflow near the cathode in a single cell was also visualized. It was concluded that the power breakdown was probably caused by flooding in the anode of one of the most downstream cells...