Is pybamm able to build ECM with 2 or more RCs?

[Hongmeiqi]

Is pybamm able to build ECM with 2 or more RCs? If possible, how can we build it?

I am trying to build a 2RC thevenin with options set below, but got an Error says R2[Ohm] not found.

import pybamm

option={'number of rc elements':2,
        "calculate discharge energy":"true",
        "operating mode":"current",
        }
model = pybamm.equivalent_circuit.Thevenin(name='2RC model',options = option)

experiment = pybamm.Experiment(
    [
        (
            "Discharge at C/10 for 10 hours or until 3.3 V",
            "Rest for 30 minutes",
            "Rest for 2 hours",
            "Charge at 100 A until 4.1 V",
            "Hold at 4.1 V until 5 A",
            "Rest for 30 minutes",
            "Rest for 1 hour",
        ),
    ]
)

sim = pybamm.Simulation(model, experiment=experiment)
sim.solve()

[Hongmeiqi]

Is pybamm able to build ECM with 2 or more RCs? If possible, how can we build it?

I am trying to build a 2RC thevenin with options set below, but got an Error says R2[Ohm] not found.

import pybamm

option={'number of rc elements':2,
        "calculate discharge energy":"true",
        "operating mode":"current",
        }
model = pybamm.equivalent_circuit.Thevenin(name='2RC model',options = option)

experiment = pybamm.Experiment(
    [
        (
            "Discharge at C/10 for 10 hours or until 3.3 V",
            "Rest for 30 minutes",
            "Rest for 2 hours",
            "Charge at 100 A until 4.1 V",
            "Hold at 4.1 V until 5 A",
            "Rest for 30 minutes",
            "Rest for 1 hour",
        ),
    ]
)

sim = pybamm.Simulation(model, experiment=experiment)
sim.solve()

I realised I didn't give parameters for 2RC model, there is no default params in pybamm. It can work now with input parameter values