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Highly Stretchable Micro‐Supercapacitor Arrays with Hybrid MWCNT/PANI Electrodes
Author(s) -
Li La,
Lou Zheng,
Han Wei,
Chen Di,
Jiang Kai,
Shen Guozhen
Publication year - 2017
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201600282
Subject(s) - supercapacitor , materials science , stretchable electronics , capacitance , electrode , optoelectronics , polyaniline , nanotechnology , power density , carbon nanotube , energy storage , wearable technology , electronics , wearable computer , composite material , electrical engineering , power (physics) , polymer , computer science , chemistry , physics , quantum mechanics , polymerization , embedded system , engineering
Stretchable energy storage devices are required to fit for stretchable electronic devices, forming a fully stretchable system for comfortable and body‐attachable electronic devices. Herein, highly stretchable micro‐supercapacitors are fabricated by designing wave‐shaped hybrid multiwalled carbon nanotubes/polyaniline electrodes. As‐fabricated stretchable devices exhibit a large areal capacitance of 44.13 mF cm −2 and offer a power density of 0.07 mW cm −2 at an area energy density of 0.004 mW h cm −2 . Owing to the designed wavy electrode structure, the electrochemical performances of the stretchable micro‐supercapacitors are almost invariably under different stretching stations ranging from 5% to 40%. By fabricating stretchable micro‐supercapacitors arrays, a red light‐emitting diode can be easily lighted under different conditions including stretching, twisting, crimping, and winding. All these results confirm the outstanding stability and mechanical strength of stretchable micro‐supercapacitors, demonstrating its potential application in skin‐patchable electronics or portable/wearable devices.