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Leung, P. K.; Moreno, C.; Masters, Iain; Hazra, S. K.; Conde, B.; Mohamed, M. R.; Dashwood, R. J.; Bhagat, Rohit (2014)
Publisher: Elsevier S.A.
Languages: English
Types: Article
Subjects: TK
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.
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    • [1] R. Fu, M. Xiao, S-Y. Choe, J. Power Sources (2013), pp. 211 - 244. [2] E. Sahraei, R. Hill, T. Wierzbicki, J. Power Sources (2012), pp. 307 - 321.
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