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Real-time displacement and strain mappings of lithium-ion batteries using three-dimensional digital image correlation

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Leung, P. K., Moreno, C., Masters, Iain, Hazra, S. K. , Conde, B., Mohamed, M. R., Dashwood, R. J. and Bhagat, Rohit (2014) Real-time displacement and strain mappings of lithium-ion batteries using three-dimensional digital image correlation. Journal of Power Sources, Volume 271 . pp. 82-86. doi:10.1016/j.jpowsour.2014.07.184

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Official URL: http://dx.doi.org/10.1016/j.jpowsour.2014.07.184

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Abstract

This work presents the first application of three-dimensional digital image correlation for real-time displacement and strain analysis of a pouch type lithium-ion battery. During the electrochemical charge–discharge processes, displacements in the x-, y- and z-directions vary at different states-of-charge (SOCs) attributed to the expansion and the contraction of the interior structure. The z-displacement is observed to develop and concentrate at the vicinity of the openings of the jelly-roll structure. By resolving the displacement components, the progression and distribution of the surface strains, including principal and von-Mises strains, are computed in the charge–discharge processes. It is shown that the dominant strains are up to 0.12% in the rolling direction of the jelly-roll structure and distribute uniformly on the x–y plane over the surface.

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Engineering
Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Lithium ion batteries, Digital image correlation
Journal or Publication Title: Journal of Power Sources
Publisher: Elsevier S.A.
ISSN: 0378-7753
Official Date: 7 August 2014
Dates:
DateEvent
7 August 2014Available
30 July 2014Accepted
17 March 2014Submitted
Volume: Volume 271
Page Range: pp. 82-86
DOI: 10.1016/j.jpowsour.2014.07.184
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Innovate UK

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