arxiveess.SYcond-mat.mtrl-sci2026-07-20
Multisine electrochemical impedance spectroscopy for Li-ion battery characterisation
Noël Hallemans, Heiko Seel-Mayer, Peter Keil, Stephen R. Duncan, David A. Howey
Electrochemical impedance spectroscopy (EIS) is a valuable tool for non-invasive battery characterisation as it provides a compact data representation of physical processes over a wide range of time scales. Commonly, sinusoids at different frequencies are injected sequentially (s…