Tutorial 14 - add_resistance_internal#

Step 0: Setup the project and prepare the data#

[1]:

from pathlib import Path

import pydpeet as eet

We will use “ERROR” as the logging style for better readability of the notebook

[2]:

eet.set_logging_style("ERROR")

[3]:

standardized_data = eet.read(
    input_path=str(Path.cwd().parent.parent / "res" / "raw_data_from_cyclers" / "Cal_Ageing_Checkup1.xlsx"),
    config=eet.ReadConfig.Neware_8_0_0_516,
)

[4]:

eet.BatteryConfig.DEFAULT

[4]:

_BatteryConfigClass(cell_name='Default', c_ref=4.8, soc_start=0, max_voltage=4.2, min_voltage=2.5, threshold_current=0.075, voltage_intervall=0.01, minimal_current_for_capacity=-1.2, maximal_current_for_capacity=-0.8, min_current_diff=0.5, max_time_diff=0.5, min_voltage_diff=0, ignore_negative_resistance_values=False)

Step 1: add_resistance_internal#

[5]:

df = eet.add_resistance_internal(
    df=standardized_data,
    config=eet.BatteryConfig.DEFAULT,
    verbose=True,
)

[6]:

added_cols = [c for c in df.columns if c not in standardized_data.columns]
added_cols

[6]:

['InternalResistance[ohm]']

[7]:

df.head(6)

[7]:
Meta_Data Step_Count Voltage[V] Current[A] Temperature[°C] Test_Time[s] Date_Time EIS_f[Hz] EIS_Z_Real[Ohm] EIS_Z_Imag[Ohm] EIS_DC[A] InternalResistance[ohm]
0.0 20240201100904-CheckUp-3-7-AM23NMC00009.xlsx U... 0 3.5269 1.4378 27.8 0.0 2024-02-01 10:09:04 None None None None NaN
1.0 None 0 3.5287 1.4398 27.8 1.0 2024-02-01 10:09:05 None None None None NaN
2.0 None 0 3.5298 1.4400 27.8 2.0 2024-02-01 10:09:06 None None None None NaN
3.0 None 0 3.5307 1.4400 27.8 3.0 2024-02-01 10:09:07 None None None None NaN
4.0 None 0 3.5315 1.4401 27.8 4.0 2024-02-01 10:09:08 None None None None NaN
5.0 None 0 3.5323 1.4401 27.8 5.0 2024-02-01 10:09:09 None None None None NaN 
[8]:

df.plot(x="Test_Time[s]", y=["InternalResistance[ohm]"], style="cx")

[8]:

<Axes: xlabel='Test_Time[s]'>
../../_images/examples_notebooks_Tutorial_14_add_resistance_internal_11_1.png