Can I create a custom ECM model?

[MarkVeerasingam]

Hi folks,
Im looking at expanding my learnigns with pybamm. I am complete noob to battery modelling and want to get started on ECMs.
I know pybamm offer a 1RC and 2RC Thevenin model. However is it possible to use pybamms Base Model class to create something simple like a Rint model or higher RC Order in the Thevenin model?

[valentinsulzer]

Yes, you just need to define the ODEs explicitly yourself - see https://docs.pybamm.org/en/stable/source/examples/notebooks/creating_models/1-an-ode-model.html

[valentinsulzer]

Another example is

PyBaMM/src/pybamm/models/full_battery_models/lithium_ion/basic_splitOCVR.py

Line 7 in f05cae2

class SplitOCVR(pybamm.BaseModel):