How loss of capacity is calculated ?

[Akila1993]

Hello Everyone, @brosaplanella @TomTranter

I am using OKane degradation sub-models with the DFN model and want to familiarize myself with how the losses are calculated, such as the variables mentioned below.

Can someone guide me to where I can see the source code or any reference for this in the PyBaMM repository?

• 'Loss of lithium to SEI [mol]',
• 'Loss of capacity to SEI [A.h]',
• 'Total lithium lost to side reactions [mol]',
• 'Total capacity lost to side reactions [A.h]',
• 'Negative electrode capacity [A.h]',
• 'Loss of active material in negative electrode [%]',
• 'Loss of lithium to lithium plating [mol]',
• 'Loss of capacity to lithium plating [A.h]',
• 'Loss of lithium to SEI on cracks [mol]',
• 'Loss of capacity to SEI on cracks [A.h]',
• 'Positive electrode capacity [A.h]',

[valentinsulzer]

Mostly in https://github.com/pybamm-team/PyBaMM/blob/develop/pybamm/models/full_battery_models/lithium_ion/base_lithium_ion_model.py