LAPSE:2019.1518
Published Article
LAPSE:2019.1518
Impact of Vibration on the Surface Film of Lithium-Ion Cells
Limhi Somerville, James Michael Hooper, James Marco, Andrew McGordon, Chris Lyness, Marc Walker, Paul Jennings
December 10, 2019
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.
Keywords
ageing, cylindrical cells, lifetime, vehicle use, vibration, XPS
Subject
Suggested Citation
Somerville L, Hooper JM, Marco J, McGordon A, Lyness C, Walker M, Jennings P. Impact of Vibration on the Surface Film of Lithium-Ion Cells. (2019). LAPSE:2019.1518
Author Affiliations
Somerville L: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
Hooper JM: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
Marco J: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
McGordon A: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
Lyness C: Jaguar Land Rover, Banbury Road, Warwick CV35 0XJ, UK
Walker M: Department of Physics, University of Warwick, Coventry CV4 7AL, UK
Jennings P: Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
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Journal Name
Energies
Volume
10
Issue
6
Article Number
E741
Year
2017
Publication Date
2017-05-25
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en10060741, Publication Type: Journal Article
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LAPSE:2019.1518
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doi:10.3390/en10060741
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Dec 10, 2019
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CC BY 4.0
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[v1] (Original Submission)
Dec 10, 2019
 
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Dec 10, 2019
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v1
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https://psecommunity.org/LAPSE:2019.1518
 
Original Submitter
Calvin Tsay
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