The Electrode Current Density boundary condition can be applied at an exterior boundary of a model that contains either electrode or porous electrode domains.

Note that using this node in 2D or 3D may result in an uneven potential distribution along the boundary. To mitigate such effects you can use the Electrode Current node instead.

By right-clicking this node you can enable Harmonic Perturbation. This means that the node will only be active when solving for Frequency Domain study steps (typically used in AC Impedance studies). The frequency spectrum is specified in the study node.