Journal
JOURNAL OF POWER SOURCES
Volume 480, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2020.228742
Keywords
Lithium-ion battery; EIS; Interpretation; Validation; Metrology; Degradation
Funding
- European Metrology Programme for Innovation and Research (EMPIR)
- European Union's Horizon 2020 research and innovation programme [17IND10-LiBforSecUse]
- National Research Foundation (NRF) of Korea - Ministry of Science and ICT (MSIT) [NRF-2018R1A5A1025224]
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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.
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