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Omnidirectional Deformable Energy Textile for Human Joint Movement Compatible Energy Storage
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posted on 2017-11-07, 00:00 authored by Joonwon Lim, Dong Sung Choi, Gil Yong Lee, Ho Jin Lee, Suchithra Padmajan Sasikala, Kyung Eun Lee, Seok Hun Kang, Sang Ouk KimOmnidirectional
deformability is an unavoidable basic requirement for wearable devices
to accommodate human daily motion particularly at human joints. We
demonstrate omnidirectionally bendable and stretchable textile-based
electrochemical capacitor that retains high power performance under
complex mechanical deformation. Judicious synergistic hybrid structure
of woven elastic polymer yarns with carbon nanotubes and conductive
polymers offers reliable electrical and electrochemical activity even
under repeated cycles of severe complex deformation modes. The textile-based
electrochemical capacitors exhibit omnidirectional stretchability
with 93% of capacitance retention under repeated 50% omnidirectional
stretching condition while demonstrating excellent specific capacitance
(412 mF cm–2) and cycle stability (>2000 stretch).
The wearable power source stably powers red LED under omnidirectional
stretching that accompanies human elbow joint motion.
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stretchable textile-based electrochemical capacitorwearable power source stably powerspolymer yarnspower performancetextile-based electrochemical capacitors exhibit omnidirectional stretchabilityomnidirectionally bendableHuman Joint Movement Compatible Energy Storage Omnidirectional deformabilityLEDwearable devicesdeformation modeselectrochemical activityconductive polymerscarbon nanotubesOmnidirectional Deformable Energy Textilecapacitance retention
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