How can I change the exchange current density?

This topic has been transferred from Github discussions.

How can I change the reaction exchange current density in my parameter set?

You need to define it as a Python function of this form (with this particular inputs)

def your_electrolyte_exchange_current_density(c_e, c_s_surf, T):

and then you can pass your function to the parameters dictionary doing

param["Positive electrode exchange-current density [A.m-2]"] = exchange_current_density

(or with the negative one if that’s the one you want to change.