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Impact of vibration on the surface film of lithium-ion cells
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Somerville, Limhi, Hooper, James Michael, Marco, James, McGordon, Andrew, Lyness, C., Walker, Marc and Jennings, P. A. (Paul A.) (2017) Impact of vibration on the surface film of lithium-ion cells. Energies, 10 (6). 741. doi:10.3390/en10060741 ISSN 1996-1073.
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Official URL: http://dx.doi.org/10.3390/en10060741
Abstract
Cylindrical 18650-type lithium-ion cells are being utilized more often for automotive applications. This introduces error in calculating expected lifetime due to varied usage conditions accelerating or reducing material damage. One such usage condition is vibration, which has been shown to impact the electrical performance over extended periods. Within this study X-ray photoelectron spectroscopy (XPS) has been performed on nickel manganese cobalt (NMC) cells subjected to vibration. This study found that vibration causes the removal of the selectively-formed surface film created during a cell’s first cycles and replaces it with the surface film from electrolyte decomposition. The surface films formed by vibration are composed of much higher concentrations of organic electrolyte decomposition products than the film from the control cell. The impact of this chemical mechanism is an increased level of cell degradation. This is exhibited in increased capacity fade and cell impedance. This is the first study presented within the academic literature which has identified an electro-mechanical mechanism responsible for the performance degradation in lithium-ion cells from vibration.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Electric vehicles -- Batteries -- Vibration, Hybrid electric vehicles -- Batteries -- Vibration, X-ray photoelectron spectroscopy | ||||||
Journal or Publication Title: | Energies | ||||||
Publisher: | M.D.P.I.A.G. | ||||||
ISSN: | 1996-1073 | ||||||
Official Date: | 25 May 2017 | ||||||
Dates: |
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Volume: | 10 | ||||||
Number: | 6 | ||||||
Article Number: | 741 | ||||||
DOI: | 10.3390/en10060741 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 25 May 2017 | ||||||
Date of first compliant Open Access: | 26 May 2017 | ||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||
Grant number: | EP/I01585X/1 (EPSRC) | ||||||
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