TY - JOUR
T1 - Real-time displacement and strain mappings of lithium-ion batteries using three-dimensional digital image correlation
AU - Leung, P.K.
AU - Moreno, C.
AU - Masters, I.
AU - Hazra, S.
AU - Conde, B.
AU - Mohamed, M.R.
AU - Dashwood, R.J.
AU - Bhagat, Rohit
PY - 2014/12/20
Y1 - 2014/12/20
N2 - 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.
AB - 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.
KW - Digital image correlation
KW - Lithium-ion battery
KW - Principal strain
KW - stress
KW - von-Mises strain
UR - http://www.mendeley.com/catalogue/realtime-displacement-strain-mappings-lithiumion-batteries-using-threedimensional-digital-image-corr
U2 - 10.1016/j.jpowsour.2014.07.184
DO - 10.1016/j.jpowsour.2014.07.184
M3 - Article
SN - 0378-7753
VL - 271
SP - 82
EP - 86
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -