Separator
Use a Separator node to model electrolyte charge and mass transport in an electronically isolating porous matrix. Use correction factors to account for the lowered diffusion coefficients in the electrolyte and the lowered conductivities of the electrode, due to the lower volume fractions of the electrolyte phase and the tortuosity of the porous matrix.
See also the Electrolyte node for more information about some of the settings of this node.
Porous Matrix Properties
The Electrolyte volume fraction ε1 is used in the mass balance equations to account for the available liquid volume. These parameter values may also be used by the Effective Transport Parameter Correction (next section). Similarly, the Electrolyte tortuosity τ1 parameter may also be used by the Effective Transport Parameter Correction (next section). Select either Isotropic to define a scalar value, or Diagonal and Symmetric to define anisotropic tensor values. The default is Isotropic 1.
Effective Transport Parameter Correction
Use the settings of this section to calculate effective transport parameters for the electrode and the electrolyte if your corresponding parameter values refer to nonporous media.
Dissolving-Depositing Species
See the Porous Electrode node for more information about some of the settings of this node.