Abnormal Temperature changes

[Mrzhang-hub]

Recently I have run a driving cycle lasted for about 4 hours. To my surprise, the temperature only changes a little bit, which is not reasonable. (Thermal:'lumped')

EM_LLI = pybamm.lithium_ion.SPMe({
        "lithium plating": "irreversible",
        "lithium plating porosity change": "true",
        "thermal": "lumped"})
parameter_values = pybamm.ParameterValues('Chen2020_plating')

[brosaplanella]

That would depend on the parameters. The LG M50 cannot provide such high currents and voltages, so I assume you have changed some of the parameters. It would be good to know what's the response of a single cell and what are the thermal parameters (volume, surface area and heat transfer coefficient).

[Mrzhang-hub]

'Cell cooling surface area [m2]': 0.00531,
 'Cell volume [m3]': 2.42e-05,
"Total heat transfer coefficient [W.m-2.K-1]：10.0

As for the Cell geometry , I did not set this parameter in options(In my view, it is the shape of LGM50, which is a cylinder).

[brosaplanella]

In recent versions, it should be arbitrary which with these parameters corresponds to a cylindrical cell, but work checking in case it is pouch for some reason, as this would have a different cooling.

In addition, can you send the plot for the current which is bigger (alternative you can zoom into a subset only)? From the plot above it is hard to get a grasp of how the current behaves.

[Mrzhang-hub]

This is what the current of single cell looks like .

[brosaplanella]

Ok, then the results above make sense I think. Note that the I_cell is around C/5 for most of the time, and even the largest spikes do not reach 1C, so the heat generated will be really small.

[Mrzhang-hub]

I got it. Really grateful for your help and patience！ Now I know how to revise my model and continue my work.