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Using Ultrasonic to Study the Overcharge Damage Threshold of Lithium-Ion Batteries.

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Title: Using Ultrasonic to Study the Overcharge Damage Threshold of Lithium-Ion Batteries.
Authors: Wang, Shihao1 (AUTHOR), Song, Jifeng2 (AUTHOR) songjifeng@ncepu.edu.cn, Yang, Zhengye1 (AUTHOR), Zhao, Weisheng1 (AUTHOR), Du, Mingzhe1 (AUTHOR), Yang, Hui1 (AUTHOR)
Source: Energies (19961073). May2026, Vol. 19 Issue 10, p2455. 18p.
Subject Terms: *Ultrasonic testing, *Lithium-ion batteries, *Mechanical failures, *Chemical reactions, *Overvoltage, *Acoustic measurements, *Battery management systems, *Current density (Electromagnetism)
Abstract: Monitoring the internal structural evolution and gas generation in lithium-ion batteries is critical for effective battery management; however, conventional electrical and thermal sensing techniques lack the sensitivity to capture these dynamic changes accurately. To address this limitation, we apply ultrasonic diagnostic techniques—specifically A-scan and C-scan modalities—to characterize the acoustic responses of pouch-type LFP batteries subjected to a range of current densities (0.5C–5C) and overcharge conditions defined by cutoff voltage and SOC. Our findings show that ultrasonic signals are highly sensitive to concentration polarization and electrode lithiation processes occurring during charge–discharge cycles. At elevated current densities (>2C), an imbalance in the Li+ intercalation/deintercalation process occurs. Overcharge tests reveal that 4.2 V can serve as the threshold voltage for early warning during ultrasonic testing of LFP batteries When SOC exceeds 110%, internal gas generation and mechanical degradation significantly accelerate and become irreversible. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194141569
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Using Ultrasonic to Study the Overcharge Damage Threshold of Lithium-Ion Batteries.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Shihao%22">Wang, Shihao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Jifeng%22">Song, Jifeng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> songjifeng@ncepu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Zhengye%22">Yang, Zhengye</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Weisheng%22">Zhao, Weisheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Du%2C+Mingzhe%22">Du, Mingzhe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Hui%22">Yang, Hui</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. May2026, Vol. 19 Issue 10, p2455. 18p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Ultrasonic+testing%22">Ultrasonic testing</searchLink><br />*<searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br />*<searchLink fieldCode="DE" term="%22Mechanical+failures%22">Mechanical failures</searchLink><br />*<searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink><br />*<searchLink fieldCode="DE" term="%22Overvoltage%22">Overvoltage</searchLink><br />*<searchLink fieldCode="DE" term="%22Acoustic+measurements%22">Acoustic measurements</searchLink><br />*<searchLink fieldCode="DE" term="%22Battery+management+systems%22">Battery management systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Monitoring the internal structural evolution and gas generation in lithium-ion batteries is critical for effective battery management; however, conventional electrical and thermal sensing techniques lack the sensitivity to capture these dynamic changes accurately. To address this limitation, we apply ultrasonic diagnostic techniques—specifically A-scan and C-scan modalities—to characterize the acoustic responses of pouch-type LFP batteries subjected to a range of current densities (0.5C–5C) and overcharge conditions defined by cutoff voltage and SOC. Our findings show that ultrasonic signals are highly sensitive to concentration polarization and electrode lithiation processes occurring during charge–discharge cycles. At elevated current densities (>2C), an imbalance in the Li+ intercalation/deintercalation process occurs. Overcharge tests reveal that 4.2 V can serve as the threshold voltage for early warning during ultrasonic testing of LFP batteries When SOC exceeds 110%, internal gas generation and mechanical degradation significantly accelerate and become irreversible. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194141569
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19102455
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 2455
    Subjects:
      – SubjectFull: Ultrasonic testing
        Type: general
      – SubjectFull: Lithium-ion batteries
        Type: general
      – SubjectFull: Mechanical failures
        Type: general
      – SubjectFull: Chemical reactions
        Type: general
      – SubjectFull: Overvoltage
        Type: general
      – SubjectFull: Acoustic measurements
        Type: general
      – SubjectFull: Battery management systems
        Type: general
      – SubjectFull: Current density (Electromagnetism)
        Type: general
    Titles:
      – TitleFull: Using Ultrasonic to Study the Overcharge Damage Threshold of Lithium-Ion Batteries.
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          Name:
            NameFull: Wang, Shihao
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          Name:
            NameFull: Song, Jifeng
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            NameFull: Yang, Zhengye
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            NameFull: Zhao, Weisheng
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            NameFull: Du, Mingzhe
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            NameFull: Yang, Hui
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            – D: 15
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 19
            – Type: issue
              Value: 10
          Titles:
            – TitleFull: Energies (19961073)
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