Triaxial carbon nanotube/conducting polymer wet-spun fibers supercapacitors for wearable electronics

Publication Name

Nanomaterials

Abstract

The ubiquity of wearables, coupled with the increasing demand for power, presents a unique opportunity for nanostructured fiber-based mobile energy storage systems. When designing wearable electronic textiles, there is a need for mechanically flexible, low-cost and light-weight components. To meet this demand, we have developed an all-in-one fiber supercapacitor with a total thickness of less than 100 µm using a novel facile coaxial wet-spinning approach followed by a fiber wrapping step. The formed triaxial fiber nanostructure consisted of an inner poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) core coated with an ionically conducting chitosan sheath, subsequently wrapped with a carbon nanotube (CNT) fiber. The resulting supercapacitor is highly flexible, delivers a maximum energy density 5.83 Wh kg and an extremely high power of 1399 W kg along with remarkable cyclic stability and specific capacitance. This asymmetric all-in-one fiber supercapacitor may pave the way to a future generation of wearable energy storage devices. −1 −1

Open Access Status

This publication may be available as open access

Volume

11

Issue

1

Article Number

3

First Page

1

Last Page

16

Funding Number

DE130100517

Funding Sponsor

Australian Research Council

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Link to publisher version (DOI)

http://dx.doi.org/10.3390/nano11010003