[Bug]: Contact resistance has no influence on impedance

[noelhallemans]

Python Version

3.12.4

Describe the bug

When evaluating the impedance, varying the parameter "Contact resistance [Ohm]" has no effect on the impedance while it should.

Steps to reproduce the behaviour

Run prediction = problem.evaluate(params) with params containing "Contact resistance [Ohm]".

Relevant log output

No response

[NicolaCourtier]

In order to use the "Contact resistance [Ohm]" parameter in a PyBaMM model, you need to enable this option when creating the model, e.g. using:
model = pybop.lithium_ion.SPM(options={"contact resistance": "true"})
Then set the value of this parameter using:
parameter_set["Contact resistance [Ohm]"] = 0.02

@BradyPlanden let's add this to the example in #405.