Noninvasive ultrasound for Lithium-ion batteries state estimation

Simon Montoya-Bedoya, Miguel Bernal, Laura A. Sabogal-Moncada, Hader V. Martinez-Tejada, Esteban Garcia-Tamayo

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Lithium-ion battery degradation estimation using fast and noninvasive techniques is a crucial issue in the circular economy framework of this technology. Currently, most of the approaches used to establish the battery-state (i.e., State of Charge (SoC), State of Health (SoH)) require time-consuming processes. In the present preliminary study, an ultrasound array was used to assess the influence of the SoC and SoH on the variations in the time of flight (TOF) and the speed of sound (SOS) of the ultrasound wave inside the batteries. Nine aged 18650 Lithium-ion batteries were imaged at 100% and 0% SoC using a Vantage-256 system (Verasonics, Inc.) equipped with a 64-element ultrasound array and a center frequency of 5 MHz (Imasonic SAS). It was found that second-life batteries have a complex ultrasound response due to the presence of many degradation pathways and, thus, making it harder to analyze the ultrasound measurements. Although further analysis must be done to elucidate a clear correlation between changes in the ultrasound wave properties and the battery state estimation, this approach seems very promising for future nondestructive evaluation of second-life batteries

    Original languageEnglish
    Title of host publicationLAUS 2021 - 2021 IEEE UFFC Latin America Ultrasonics Symposium, Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781665443593
    DOIs
    StatePublished - 2021
    Event2021 IEEE UFFC Latin America Ultrasonics Symposium, LAUS 2021 - Gainesville, United States
    Duration: 4 Oct 20215 Oct 2021

    Publication series

    NameLAUS 2021 - 2021 IEEE UFFC Latin America Ultrasonics Symposium, Proceedings

    Conference

    Conference2021 IEEE UFFC Latin America Ultrasonics Symposium, LAUS 2021
    Country/TerritoryUnited States
    CityGainesville
    Period4/10/215/10/21

    Bibliographical note

    Funding Information:
    This work was supported by the Royal Society of Engineering in the United Kingdom through its Transforming Systems through Partnership 20/21 call. Special acknowledgment goes to Verasonics SAS and BATx for providing the ultrasound equipment and the second-life batteries used in this study respectively.

    Publisher Copyright:
    © 2021 IEEE.

    Keywords

    • Lithium-ion batteries
    • Non-destructive evaluation
    • Second-life batteries
    • State of charge
    • State of health
    • Ultrasound

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