State-of-health estimation of lithium-ion batteries based on electrochemical impedance spectroscopy: a review

• Published in: Protection and control of modern power systems Vol. 8; no. 1; p. 41
• Main Authors: Liu, Yanshuo, Wang, Licheng, Li, Dezhi, Wang, Kai
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.12.2023; Power System Protection and Control Press
• Subjects: Aging; Clean energy; Electrical Machines and Networks; Electrochemical impedance spectroscopy; Electrochemistry; Energy; Energy storage; Energy Systems; Impedance; Lithium; Lithium-ion batteries; Measurement methods; Power Electronics; Rechargeable batteries; Renewable and Green Energy; Review; Spectroscopy; Spectrum analysis; Storage systems; Lithium-ion batteries; SOH estimation; Battery management system; State-of-health; Electrochemical impedance spectroscopy
• ISSN: 2367-2617; 2367-0983; 2367-0983
• DOI: 10.1186/s41601-023-00314-w

Lithium-ion batteries (LIBs) are crucial for the large-scale utilization of clean energy. However, because of the complexity and real-time nature of internal reactions, the mechanism of capacity decline in LIBs is still unclear. This has become a bottleneck restricting their promotion and application. Electrochemical impedance spectroscopy (EIS) contains rich electrochemical connotations and significant application prospects, and has attracted widespread attention and research on efficient energy storage systems. Compared to traditional voltage and current data, the state-of-health (SOH) estimation model based on EIS has higher accuracy. This paper categorizes EIS measurement methods based on different principles, introduces the relationship between LIBs aging mechanism and SOH, and compares the advantages of different SOH estimation methods. After a detailed analysis of the latest technologies, a review is given. The insights of this review can deepen the understanding of the relationship between EIS and the aging effect mechanism of LIBs, and promote the development of new energy storage devices and evaluation methods.