Thin Electrolyte Layer
Use this node to specify a thin layer on an interior boundary between two electrolyte domains. The node can be used as an alternative to drawing the actual layer as a domain in the model geometry, which may significantly reduce meshing and solver time, especially in 3D models.
The layer may either be Insulating, Resistive (supporting electrolytes only), or an Ion-exchange membrane.
For Resistive or Ion-exchange membrane, the potential drop over the membrane is determined either from the Surface resistivity or the Thickness and conductivity.
For Ion-exchange membrane, the choice of Charge-carrying species concentration species specifies that the current flowing over the layer will be carried by this species (which must have a nonzero charge number). The potential condition may be either Donnan, which calculates the potential shift over the boundary based on the membrane charge carrying species concentration, or User defined.