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Thermo-electrochemical instrumentation of cylindrical Li-ion cells
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McTurk, Euan, Amietszajew, Tazdin, Fleming, Joseph and Bhagat, Rohit (2018) Thermo-electrochemical instrumentation of cylindrical Li-ion cells. Journal of Power Sources, 379 . pp. 309-316. doi:10.1016/j.jpowsour.2018.01.060 ISSN 0378-7753.
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Official URL: https://doi.org/10.1016/j.jpowsour.2018.01.060
Abstract
The performance evaluation and optimisation of commercially available lithium-ion cells is typically based upon
their full cell potential and surface temperature measurements, despite these parameters not being fully representative of the electrochemical processes taking place in the core of the cell or at each electrode. Several methods were devised to obtain the cell core temperature and electrode-specific potential profiles of cylindrical
Li-ion cells. Optical fibres with Bragg Gratings were found to produce reliable core temperature data, while their small mechanical profile allowed for low-impact instrumentation method. A pure metallic lithium reference electrode insertion method was identified, avoiding interference with other elements of the cell while ensuring
good contact, enabling in-situ observations of the per-electrode electrochemical responses. Our thermo-electrochemical instrumentation technique has enabled us to collect unprecedented cell data, and has subsequently been used in advanced studies exploring the real-world performance limits of commercial cells.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry T Technology > T Technology (General) T Technology > TP Chemical technology |
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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 -- Thermal properties, Lithium ion batteries -- Testing, Optical fibers, Electronic apparatus and appliances—Temperature control | |||||||||
Journal or Publication Title: | Journal of Power Sources | |||||||||
Publisher: | Elsevier S.A. | |||||||||
ISSN: | 0378-7753 | |||||||||
Official Date: | 1 March 2018 | |||||||||
Dates: |
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Volume: | 379 | |||||||||
Page Range: | pp. 309-316 | |||||||||
DOI: | 10.1016/j.jpowsour.2018.01.060 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 9 April 2018 | |||||||||
Date of first compliant Open Access: | 9 April 2018 | |||||||||
RIOXX Funder/Project Grant: |
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Open Access Version: |
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