Fast-charging capability of lithium-ion cells: Influence of electrode aging and electrolyte consumption

Johannes Sieg, Alexander U. Schmid, Laura Rau, Andreas Gesterkamp, Mathias Storch, Bernd Spier, Kai Peter Birke and Dirk Uwe Sauer

Applied Energy, 2022, vol. 305, issue C, No S0306261921010928

Abstract: Fast charging of electric vehicles is becoming more and more important for achieving customer acceptance of electromobility. During fast charging, the maximum charging rate of the lithium-ion cells used in the traction batteries of electric vehicles has to be controlled properly to avoid the deposition of metallic lithium on the surface of the negative electrode, known as lithium plating. However, cycle life tests have shown that after a few hundred cycles at a moderate aging rate, the fast-charging capability of lithium-ion cells decreases and a sudden, rapid loss of capacity is observable. Therefore, to achieve a long service life and, concurrently, short charging times, it is crucial to analyze the non-plating critical charging rate depending on the mode of battery degradation.

Keywords: Lithium-ion; Fast charging; Lithium plating; Local degradation analysis; Post-mortem analysis (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (7)

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DOI: 10.1016/j.apenergy.2021.117747

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