I am trying to model the aging of a NMC cell . However, my model is not being responsive to change in ambient temperature and DOD levels. How can I accurately parameterize it?

The cell I am trying to model the degradation is for LG 21700 M50LT cells. Since the battery option has options of other battery chemistry as preset, the NMC cells are required to be parameterized appropriatly. Also, I am setting the maximum capacity of cell as 4.927Ah but the battery data output when visualized through a scope, the degradataion has stared form 4.975 instead of 4.927.