Aqueous supercapacitors on conductive cotton

Pasta, Mauro; La Mantia, Fabio; Hu, Liangbing; Deshazer, Heather Dawn; Cui, Yi

Aqueous supercapacitors on conductive cotton

Type

Article

Authors

Pasta, Mauro
La Mantia, Fabio
Hu, Liangbing
Deshazer, Heather Dawn
Cui, Yi

KAUST Grant Number

KUS-l1-001-12

Online Publication Date

2010-06-11

Print Publication Date

2010-06

Date

2010-06-11

Abstract

Wearable electronics offer the combined advantages of both electronics and fabrics. In this article, we report the fabrication of wearable supercapacitors using cotton fabric as an essential component. Carbon nanotubes are conformally coated onto the cotton fibers, leading to a highly electrically conductive interconnecting network. The porous carbon nanotube coating functions as both active material and current collector in the supercapacitor. Aqueous lithium sulfate is used as the electrolyte in the devices, because it presents no safety concerns for human use. The supercapacitor shows high specific capacitance (~70-80 F·g-1 at 0.1 A·g-1) and cycling stability (negligible decay after 35,000 cycles). The extremely simple design and fabrication process make it applicable for providing power in practical electronic devices. © 2010 Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

Citation

Pasta M, La Mantia F, Hu L, Deshazer HD, Cui Y (2010) Aqueous supercapacitors on conductive cotton. Nano Research 3: 452–458. Available: http://dx.doi.org/10.1007/s12274-010-0006-8.

Acknowledgements

Y. C. acknowledges support from the King Abdullah University of Science and Technology (KAUST) Investigator Award (No. KUS-l1-001-12).