Use of Electrochemical Impedance Spectroscopy for the Evaluation of Performance of PEM Fuel Cells Based on Carbon Cloth Gas Diffusion Electrodes

Figure 4

Polarization and power density curves at a high inlet gas flow rate (a, b)—0.5/2 Nl/min H₂/air—and at a low inlet gas flow rate (c, d)—0.2/1 Nl/min H₂/air.

(a)

(b)

(c)

(d)