Flexible piezoelectric nano-composite films for kinetic energy harvesting from textiles


Almusallam, Ahmed, Luo, Jerry, Komolafe, Abiodun, Yang, Kai, Robinson, Andrew and Beeby, Stephen (2017) Flexible piezoelectric nano-composite films for kinetic energy harvesting from textiles Nano Energy, 33, pp. 146-156. (doi:10.1016/j.nanoen.2017.01.037).

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Description/Abstract

This paper details the enhancements in the dielectric and piezoelectric properties of a low-temperature screen-printable piezoelectric nano-composite film on flexible plastic and textile substrates. These enhancements involved adding silver nano particles to the nano-composite material and using an additional cold isostatic pressing (CIP) post-processing procedure. These developments have resulted in a 18% increase in the free-standing piezoelectric charge coefficient d33 to a value of 98 pC/N. The increase in the dielectric constant of the piezoelectric film has, however, resulted in a decrease in the peak output voltage of the composite film. The potential for this material to be used to harvest mechanical energy from a variety of textiles under compressive and bending forces has been evaluated theoretically and experimentally. The maximum energy density of the enhanced piezoelectric material under 800 N compressive force was found to be 34 J/m3 on a Kermel textile. The maximum energy density of the enhanced piezoelectric material under bending was found to be 14.3 J/m3 on a cotton textile. These results agree very favourably with the theoretical predictions. For a 10 cm x 10 cm piezoelectric element 100 ?m thick this equates to 38 ?J and 14.3 ?J of energy generated per mechanical action respectively which is a potentially useful amount of energy.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.nanoen.2017.01.037
ISSNs: 2211-2855 (print)
Related URLs:
Organisations: EEE
ePrint ID: 403387
Date :
Date Event
16 January 2017Accepted/In Press
17 January 2017e-pub ahead of print
March 2017Published
Date Deposited: 25 Jan 2017 09:26
Last Modified: 17 Apr 2017 00:52
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/403387

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