Question about simulating long cycles

[YouHyin]

I want to plot discharge voltage curve though pybamm.

So I wrote the code by referring to this(https://github.com/pybamm-team/PyBaMM/blob/main/examples/notebooks/simulating-long-experiments.ipynb).

For example, I want to plot a 100th cycle of discharge voltage curve
import pybamm
import matplotlib.pyplot as plt
import numpy as np

parameter_values = pybamm.ParameterValues("Mohtat2020")
parameter_values.update({"SEI kinetic rate constant [m.s-1]": 1e-14})
parameter_values.update({'Electrode height [m]': 0.605 })
parameter_values.update({'Electrode width [m]' : 0.1035 })
parameter_values.update({'Nominal cell capacity [A.h]' : 1.1 })
parameter_values.update({'Lower voltage cut-off [V]' : 2})
parameter_values.update({'Upper voltage cut-off [V]' : 3.9})
spm = pybamm.lithium_ion.SPMe({"SEI": "ec reaction limited"})

Calculate stoichiometries at 100% SOC

parameter_values.set_initial_stoichiometries(1);

pybamm.set_logging_level("NOTICE")

experiment = pybamm.Experiment([
(f"Discharge at 4C until 2.7V",
"Rest for 1 hour",
f"Charge at 3.6C until 3.6V",
f"Hold at 3.6V until C/50",

)

] * 100,
termination="20% capacity"
)
sim = pybamm.Simulation(spm, experiment=experiment, parameter_values=parameter_values)
sol= sim.solve(save_at_cycles=100)

capacity = []
voltage = []

capacity=sol['Total lithium capacity [A.h]'].data
voltage=sol["Terminal voltage [V]"].data

fig,ax = plt.subplots(tight_layout=True)
ax.plot(capacity, voltage, label="Ah")
ax.set_xlabel('Capacity [Ah]')
ax.set_ylabel('Voltage [V]')
ax.legend(loc='best')

plt.show()

Here's the result!

I have questions about this.

1. What if I want to store a particular cycle (e.g., 5th cycle or 64th cycle)? save_at_cycles seems to save every nth cycle, not nth cycle.
2. I changed the width and height of the electrode to set the capacity of the cell to 1.1 Ah. However, if you look at the discharge voltage curve I made, you can see that the discharge capacity increases beyond 1.1 to 1.6. Why does it appear like this? What should be done to correct this?
   
   I would be very grateful if you could reply. I really hope you do it.