Onboard early detection and mitigation of lithium plating in fast-charging batteries.

Autor: Huang W; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Ye Y; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Chen H; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Vilá RA; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Xiang A; College of Letters and Science, University of California, Berkeley, CA, 94720, USA., Wang H; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Liu F; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Yu Z; Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA., Xu J; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Zhang Z; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Xu R; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Wu Y; Department of Electrical Engineering, Stanford University, Stanford, CA, 94305, USA., Chou LY; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Wang H; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Xu J; SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, CA, 94025, USA., Boyle DT; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA., Li Y; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA. yuzhangli@ucla.edu.; Chemical and Biomolecular Engineering, University of California, Los Angeles, CA, 90095, USA. yuzhangli@ucla.edu., Cui Y; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA. yicui@stanford.edu.; SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, CA, 94025, USA. yicui@stanford.edu.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Nov 19; Vol. 13 (1), pp. 7091. Date of Electronic Publication: 2022 Nov 19.
DOI: 10.1038/s41467-022-33486-4
Abstrakt: Fast-charging is considered as one of the most desired features needed for lithium-ion batteries to accelerate the mainstream adoption of electric vehicles. However, current battery charging protocols mainly consist of conservative rate steps to avoid potential hazardous lithium plating and its associated parasitic reactions. A highly sensitive onboard detection method could enable battery fast-charging without reaching the lithium plating regime. Here, we demonstrate a novel differential pressure sensing method to precisely detect the lithium plating event. By measuring the real-time change of cell pressure per unit of charge (dP/dQ) and comparing it with the threshold defined by the maximum of dP/dQ during lithium-ion intercalation into the negative electrode, the onset of lithium plating before its extensive growth can be detected with high precision. In addition, we show that by integrating this differential pressure sensing into the battery management system (BMS), a dynamic self-regulated charging protocol can be realized to effectively extinguish the lithium plating triggered by low temperature (0 °C) while the conventional static charging protocol leads to catastrophic lithium plating at the same condition. We propose that differential pressure sensing could serve as an early nondestructive diagnosis method to guide the development of fast-charging battery technologies.
(© 2022. The Author(s).)
Databáze: MEDLINE
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