Dataset on broadband electrochemical impedance spectroscopy of Lithium-Ion batteries for different values of the state-of-charge

This dataset consists of electrochemical impedance spec-troscopy 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 10 0 0 Hz, using a random-phase multi-sine excitation signal. For each excited frequency, the current amplitude was 50 mA, result-ing in a measurement uncertainty of approximately 0.1 m ohm . Six measurement repetitions are provided at ten different states-of-charge of four different brand-new batteries. Re-peated EIS measurement results were obtained, for each in-dividual battery cell, from six separate discharge cycles. All measurements were performed with the battery placed in a temperature-controlled chamber at 25 +/- 1 degrees C. Batteries were allowed to thermalize before each measurement. (c) 2022 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )