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Verification of the modified degradation mode identification technique by employing electrochemical impedance spectroscopy and differential voltage analysis
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Mowri, Sadia Tasnim, Barai, Anup , Gupta, Aniruddha and Marco, James (2022) Verification of the modified degradation mode identification technique by employing electrochemical impedance spectroscopy and differential voltage analysis. Batteries, 8 (12). 274. doi:10.3390/batteries8120274 ISSN 2313-0105.
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WRAP-verification-modified-degradation-mode-identification-technique-employing-electrochemical-impedance-spectroscopy-differential-voltage-analysis-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1471Kb) | Preview |
Official URL: http://dx.doi.org/10.3390/batteries8120274
Abstract
For retired automotive lithium-ion batteries, state of health (SoH) is currently utilised to grade them for a second-life application. However, researchers previously challenged this and expressed that, in addition to SoH, the actual degradation mechanism, also known as degradation mode (DM), should be considered for grading, for efficient second-life operation. To date, there is little evidence to support this. A validated DM detection technique for cell/module grading does not exist. A modified DM detection technique by tracking and indexing the incremental capacity (IC) curves was previously proposed by the authors; nevertheless, it was difficult to validate. Researchers previously proposed DM identification using Electrochemical Impedance Spectroscopy (EIS) and Differential Voltage (DV) analysis. With a direct comparison of the techniques made exploiting IC, DV, and EIS, a correlation can be made, which is presented in this article. The correlation suggests that cells identified as having the same (or different) DM by the proposed technique also identified as having the same (or different) DM growth by EIS technique proposed by other researchers. Likewise, DV analysis suggests that the DV peak’s standard deviation of similar DM cells is smaller than that of the different DM cells.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Impedance spectroscopy, Electric automobiles -- Batteries | ||||||
Journal or Publication Title: | Batteries | ||||||
Publisher: | M D P I AG | ||||||
ISSN: | 2313-0105 | ||||||
Official Date: | 5 December 2022 | ||||||
Dates: |
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Volume: | 8 | ||||||
Number: | 12 | ||||||
Article Number: | 274 | ||||||
DOI: | 10.3390/batteries8120274 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 7 December 2022 | ||||||
Date of first compliant Open Access: | 8 December 2022 |
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