Study on the Extensibility of Voltage-Plateau-Based Lithium Plating Detection for Electric Vehicles

Nithin Somasundaran (), Nessa Fereshteh Saniee, Truong Quang Dinh () and James Marco
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Nithin Somasundaran: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
Nessa Fereshteh Saniee: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
Truong Quang Dinh: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
James Marco: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK

Energies, 2023, vol. 16, issue 6, 1-15

Abstract: Lithium plating is an undesirable side reaction in lithium-ion cells during fast charging at lower temperatures. The voltage plateau of the open-circuit voltage (OCV) of cells after charging is widely used to infer the onset of lithium plating. The differential analysis of post-charge OCV has been shown to yield greater insights into the Li stripping characteristics. Though this method is continuously evaluated for single cells in open circuit, a battery module can have a series and parallel connection of cells. The effectiveness and scalability of the voltage-plateau-based technique for battery modules is presented here. The study focuses on individual cells in open circuit, cells in parallel connection, and cells in a series-parallel connection. The results validate the scalability of the technique, yet the reliability and sensitivity were observed to be inferior to the single cell results published previously.

Keywords: lithium plating; voltage plateau; battery management system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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