phase_param functions

[abhishek-appana]

Hello everyone,

I was going through the submodels for the DFN lithium-ion battery model. There are multiple submodels that use the function phase_param.

For example, 'single_ocp.py' uses self.phase_param.U(sto_surf, T)
'base_interface.py' uses phase_param.j0(c_e, c_s_surf, T)

I was not able to figure out where and how these functions are created and defined. Can someone point me to this?

It is probably something straightforward and I am not able to see it. Appreciate the help!

[martinjrobins]

Hi @abhishek-appana, the functions j0 and U are defined in the parameters for your model, for example for the lithium ion models:

PyBaMM/pybamm/parameters/lithium_ion_parameters.py

Line 578 in dfdc376

def j0(self, c_e, c_s_surf, T, lithiation=None):

[abhishek-appana]

Got it. Thank you @martinjrobins