2.2 Geometry Definition for the Fuel Cell and Electrolysis Model

Due to the fact that there are a number of different physical zones associated with the fuel cell, the following regions must be present in the fuel cell mesh:

• Anode flow channel

• Anode gas diffusion layer

• Anode catalyst layer

• Membrane layer

• Cathode catalyst layer

• Cathode gas diffusion layer

• Cathode flow channel

The following zones have to be identified, if present in the fuel cell mesh:

• Anode current collector

• Cathode current collector

• Coolant channel