Dataset on Broadband Electrochemical Impedance Spectroscopy of Lithium-Ion Batteries for Different Values of the State-of-Charge

Buchicchio, A. De Angelis, F. Santoni, P. Carbone, F. Bianconi, F. Smeraldi, in Data in Brief, vol. 45, pages 108589, 2022

Abstract

This dataset consists of electrochemical impedance spectroscopy measurements on commonly-used batteries, namely Samsung ICR18650-26J cylindrical Lithium-Ion cells. The complex impedance of the batteries was measured at a set of fourteen different frequencies from 0.05 Hz to 1000 Hz, using a random-phase multi-sine excitation signal. For each excited frequency, the current amplitude was 50 mA, resulting in a measurement uncertainty of approximately 0.1 mΩ.

Six measurement repetitions are provided at ten different states-of-charge of four different brand-new batteries. Repeated EIS measurement results were obtained, for each individual battery cell, from six separate discharge cycles. All measurements were performed with the battery placed in a temperature-controlled chamber at 25 ± 1 °C. Batteries were allowed to thermalize before each measurement.

(full text - dataset)

Keywords:

Battery electrochemical impedance spectroscopy; Lithium-ion batteries; State of charge (SoC) estimation; Broadband electrochemical impedance spectroscopy; Multisine excitation

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