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Title: Extremely versatile deformability beyond materiality : a new material platform through simple cutting for rugged batteries
Authors: Kim, Kee-Bum
Lee, Young-Joo
Costa, Avelino
Lee, Yu-Ki
Jang, Tae-Sik
Lee, Myoung-Gyu
Joo, Young-Chang
Oh, Kyu Hwan
Song, Juha
Choi, In-Suk
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Kim, K., Lee, Y., Costa, A., Lee, Y., Jang, T., Lee, M., Joo, Y., Oh, K. H., Song, J. & Choi, I. (2019). Extremely versatile deformability beyond materiality : a new material platform through simple cutting for rugged batteries. Advanced Engineering Materials, 21(7), 1900206-.
Project: 2017-T1-001-246 (RG51/17)
Journal: Advanced Engineering Materials
Abstract: A rugged lithium-ion battery (LIB) can be realized without any new material development through selective material matching based on localized deformation of a substrate induced by its well-designed pattern. In particular, an auxetic cut flexible substrate accommodates various complex deformations and adaptive conformations through the hinge joints because the external force is highly localized in the hinges while the segmented motifs remain almost undeformed. The embedded LIB cells in undeformed regions of the auxetic cut silicon rubber sheet do not undergo large deformation, maintaining their battery performance regardless of loading conditions via the pattern-associated deformation mechanism. The hierarchy and number of segmentations are the key parameters of the deformation mechanism for auxetic cut shape-reconfigurable battery systems. The numerically and experimentally proven strategy that utilizes strain gradients induced by a patterned substrate as a design guideline for material matching can lead to various wearable and conformable designs without sacrificing the functionality and durability of electronic devices.
ISSN: 1438-1656
DOI: 10.1002/adem.201900206
Rights: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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