Hello Gokul,
I believe what we are seeing responds to the definition of the different types of capacities. e.g. total, discharge, nominal, etc.
If you are referring to the fact that the x-axis is ~255 Ah at the end of the discharge, I believe the reason is that the maximum capacity for the block has been defined as the capacity obtained at low C-rate until the cut-off voltage value has been reached, which looks close to the 245 Ah that I would expect to see.
Please let me know if I misinterpreted your inquiry.
Best regards,
Javier
