EIS_Data

The data was collected for four cylindrical batteries made by Molicel of type INR-21700-P42A at different SOC levels (80%, 60%, 40%, and 20%), various current amplitudes (30 mA, 50 mA, 100 mA, 500 mA, and 1 A), and rest times (30 minutes, 1 hour, and 2 hours). All tests were conducted over a frequency range of 0.01 Hz to 10 kHz. The Arbin battery cycler and Gamry Interface 5000P Potentiostat instruments are used for data collection. The Arbin battery cycler (Model: LBT21084), includes 16 independently controlled channels, each with a voltage range of 0-5 V and a current range of ±10 A. To perform the experiment, the voltage cable (V–, green) and current cable (I–, black) from selected Arbin battery cycler channel are connected to the negative terminal of the cell and the voltage cable (V+, white) and current cable (I+, red) from the selected Arbin battery cycler channel are connected to the positive terminal of the cell placed in battery holder. The EIS experiment was performed by integrating a Gamry Interface 5000P Potentiostat with the Arbin cycler. EIS measurements were performed at Galvanostatic mode, where a sinusoidal current is applied as input to the battery and measuring the corresponding output voltage.