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나노입자 연구단
나노입자 연구단
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Stretchable Electrode Based on Laterally Combed Carbon Nanotubes for Wearable Energy Harvesting and Storage Devices

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Title
Stretchable Electrode Based on Laterally Combed Carbon Nanotubes for Wearable Energy Harvesting and Storage Devices
Author(s)
Seungki Hong; Jongsu Lee; Kyungsik Do; Minbaek Lee; Ji Hoon Kim; Sangkyu Lee; Dae-Hyeong Kim
Publication Date
2017-12
Journal
ADVANCED FUNCTIONAL MATERIALS, v.27, no.48, pp.1704353 -
Publisher
WILEY-V C H VERLAG GMBH
Abstract
Carbon nanotubes (CNTs) are a promising material for use as a flexible electrode in wearable energy devices due to their electrical conductivity, soft mechanical properties, electrochemical activity, and large surface area. However, their electrical resistance is higher than that of metals, and deformations such as stretching can lead to deterioration of electrical performances. To address these issues, here a novel stretchable electrode based on laterally combed CNT networks is presented. The increased percolation between combed CNTs provides a high electrical conductivity even under mechanical deformations. Additional nickel electroplating and serpentine electrode designs increase conductivity and deformability further. The resulting stretchable electrode exhibits an excellent sheet resistance, which is comparable to conventional metal film electrodes. The resistance change is minimal even when stretched by ≈100%. Such high conductivity and deformability in addition to intrinsic electrochemically active property of CNTs enable high performance stretchable energy harvesting (wireless charging coil and triboelectric generator) and storage (lithium ion battery and supercapacitor) devices. Monolithic integration of these devices forms a wearable energy supply system, successfully demonstrating its potential as a novel soft power supply module for wearable electronics. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei
URI
https://pr.ibs.re.kr/handle/8788114/4328
ISSN
1616-301X
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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