A submodel that implements the inverted form of the Butler-Volmer relation to solve for the reaction overpotential.
param – Model parameters
domain (iter of str, optional) – The domain(s) in which to compute the interfacial current.
reaction (str) – The name of the reaction being implemented
A public method that creates and returns the variables in a submodel which require variables in other submodels to be set first. For example, the exchange current density requires the concentration in the electrolyte to be created before it can be created. If a variable can be created independent of other submodels then it should be created in ‘get_fundamental_variables’ instead of this method.