Real-Time Displacement and Strain Mappings of Lithium-Ion Batteries Using Three-Dimensional Digital Image Correlation
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-...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/7449/ http://umpir.ump.edu.my/id/eprint/7449/ http://umpir.ump.edu.my/id/eprint/7449/ http://umpir.ump.edu.my/id/eprint/7449/1/Real-time_displacement_and_strain_mappings_of_lithium-ion_batteries_using_three-dimensional_digital_image_correlation.pdf |
| Summary: | 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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