Thin Electrolyte Layer
Use this node to specify a thin layer on an internal 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 will calculate the potential shift over the boundary based on the membrane charge carrying species concentration, or can be User defined.