Diffusion and Gas Conversion Analysis of Solid Oxide Fuel Cells at Loads via AC Impedance

Figure 6

Large cell equivalent circuit model. The circuit has four RC circuits associated with the parallel RCs (𝑅^𝑎_ct𝐶^𝑎_𝑑, 𝑅^𝑐_ct𝐶^𝑐_𝑑, and 𝑅^𝑎_𝜃𝐶^𝑎_𝜃) and the finite diffusion element (𝑍_FDE).