Semi-circle for the SPMe

[noelhallemans]

Hi,

Comparing EIS data of different models in compare_models.py, it appears that the SPMe does not have a semi-circle for the same electrode double-layer capacity as the other models.

options={"surface form": "differential"} and both positive and negative electrode double-layer capacities are set to 0.2 F m-2 for the figure below

This is unexpected as the semi-circles of all models should be quite similar!

Interestingly, semi-circles for the SPMe appear when choosing the electrode double-layer capacity values unreasonably high:

100 F/m2:

compared to 0.2 F/m2:

This may be related to the bug in leading surface form conductivity (pybamm-team/PyBaMM#4139), however, using the develop branch does not solve this issue.

We use PyBAMM version 24.1.

Kind regards,

Noël

[rtimms]

will be fixed by pybamm-team/PyBaMM#4293