The node is a point feature applicable to electrolyte domains (in all the Electrochemistry interfaces). It defines a global electric reference potential s , ref (SI unit: V) according to Equation 4-19. The s , ref can be used in the Electrode Potential feature for setting the electric potential of an electrode boundary with respect to the reference potential. The variable Evs ref (SI unit: V), according to Equation 4-20, is also defined in all electrode domains.

The node is a point feature applicable to electrode domains (in all the Electrochemistry interfaces). It defines a global electric reference potential s , ref (SI unit: V) equal to the dependent variable s (SI unit: V) in the point. The s , ref can be used in the Electrode Potential feature for setting the electric potential of an electrode boundary with respect to the reference potential.

Whenever a s , ref is defined, the variable Evs ref (SI unit: V), according to Equation 4-20, is also defined in all electrode domains.

The is a boundary condition feature, applicable to external boundaries of electrode domains (in all the Electrochemistry interfaces). It sets a boundary condition for the electric potential with respect to a defined reference potential according to Equation 4-21. Electric potentials defined by the Electric Reference Potential and Reference Electrode point feature can be used as input when specifying the Electrode Potential feature.

The variable Evs ref (SI unit: V), according to Equation 4-20, is also defined on these features.