TY - JOUR
T1 - Three-dimensional stretchable fabric-based electrode for supercapacitors prepared by electrostatic flocking
AU - Li, Xiaoyan
AU - Wang, Jun
AU - Wang, Kangkang
AU - Yao, Jiming
AU - Bian, Hongjie
AU - Song, Kaili
AU - Komarneni, Sridhar
AU - Cai, Zaisheng
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/6/15
Y1 - 2020/6/15
N2 - The three-dimensional vertical-array scaffolds can be constructed by electrostatic flocking with quite high efficiency and low cost for large-area applications. Herein, we have fabricated stretchable and highly conductive fabric base resulting from the strong interaction between acid-functionalized carbon nanotubes (AC-MWNTs) and cationic cotton/spandex fabric. Then the electrostatic flocking was applied for the first time to implant vertical arrays of carbon fibers onto conductive fabrics, accompanied by deposition of nano-MnO2 to construct 3D stretchable fabric-based electrode with multistage array structure (MnO2@C-MC/S1-2). The composite binder-free electrode provided high conductivity and capacitive efficiency as well as the ideal electrochemical reversibility under tension. Furthermore, asymmetric solid-state supercapacitors were assembled using MnO2@C-MC/S1-2 as the positive electrode, C-MC/S1 with higher C1 loaded as the negative electrode, which exhibited maximum energy density of 1.70 mWh/cm2 (at a power density of 21.82 mW/cm2) and power density of 347.34 mW/cm2 (at an energy density of 0.91 mWh/cm2). The facile electrostatic flocking process with simplicity of operation and economic efficiency is both straightforward and cost-effective for fabricating three-dimensional electrodes for wearable energy storage applications.
AB - The three-dimensional vertical-array scaffolds can be constructed by electrostatic flocking with quite high efficiency and low cost for large-area applications. Herein, we have fabricated stretchable and highly conductive fabric base resulting from the strong interaction between acid-functionalized carbon nanotubes (AC-MWNTs) and cationic cotton/spandex fabric. Then the electrostatic flocking was applied for the first time to implant vertical arrays of carbon fibers onto conductive fabrics, accompanied by deposition of nano-MnO2 to construct 3D stretchable fabric-based electrode with multistage array structure (MnO2@C-MC/S1-2). The composite binder-free electrode provided high conductivity and capacitive efficiency as well as the ideal electrochemical reversibility under tension. Furthermore, asymmetric solid-state supercapacitors were assembled using MnO2@C-MC/S1-2 as the positive electrode, C-MC/S1 with higher C1 loaded as the negative electrode, which exhibited maximum energy density of 1.70 mWh/cm2 (at a power density of 21.82 mW/cm2) and power density of 347.34 mW/cm2 (at an energy density of 0.91 mWh/cm2). The facile electrostatic flocking process with simplicity of operation and economic efficiency is both straightforward and cost-effective for fabricating three-dimensional electrodes for wearable energy storage applications.
UR - https://www.scopus.com/pages/publications/85079838939
UR - https://www.scopus.com/inward/citedby.url?scp=85079838939&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.124442
DO - 10.1016/j.cej.2020.124442
M3 - Article
AN - SCOPUS:85079838939
SN - 1385-8947
VL - 390
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 124442
ER -