Spatial coupling through electrolyte

With this knowledge one can construct a simplified picture of how location-dependent resistance affects dynamic behavior. 1 2 Neglecting the spatial coupling through the electrolyte, the differential equation for the double-layCT potential depends on the radial position according to... 

Ohmic potential drops also play a role in galvanic corrosion and other forms of localized corrosion, in which the anodes and cathodes are spatially separated. Ionic current must then flow some distance through the electrolyte. Two galvanically coupled electrodes will not reach the exact same potential as a result of the ohmic potential drop that will occur along the current path through the electrolyte. 

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