Application of electrochemical impedance spectroscopy to commercial Li-ion cells: A review
By Nina Meddings, Marco Heinrich, Frederic Overney, Jong-Sook Lee, Vanesa Ruiz, Emilio Napolitano, Steffen Seitz, Gareth Hinds, Rinaldo Raccichini, Miran Gaberscek, Juyeon Park
Published in Journal of Power Sources
Elsevier
2020
Abstract
Electrochemical impedance spectroscopy (EIS) is a widely applied non-destructive method of characterisation of
Li-ion batteries. Despite its ease of application, there are inherent challenges in ensuring the quality and
reproducibility of the measurement, as well as reliable interpretation and validation of impedance data. Here, we
present a focus review summarising best metrological practice in the application of EIS to commercial Li-ion
cells. State-of-the-art methods of EIS interpretation and validation are also reported and examined to highlight
the benefits and drawbacks of the technique.