Energy conversion model and extrusion 3D printing of piezoelectric composite energy harvesters

Xiaoquan Shi, Yazhou Sun, Dekai Li, Haitao Liu, Wenkun Xie, Xichun Luo

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

Piezoelectric energy harvesters can realize conversion from mechanical energy to electric energy and power the electronic devices. In this work, based on the electro-elastic model of piezoelectric composites, considering the influence of external load on the piezoelectric coupling, a mathematical model for calculating the energy output of the piezoelectric energy harvesters is established through the coupled equations of elastic and electric fields, Kirchhoff's Circuit Law and the law of charge conservation. Barium Titanate/polydimethylsiloxane (BTO/PDMS) composites were fabricated by extrusion 3D printing. In addition to the conventional extrusion in air, a new water bath extrusion approach was also used to prove its feasibility in preparing piezoelectric composites. The results show that water bath extrusion has advantages in maintaining the shape of the structure. Moreover, the piezoelectric properties were evaluated by falling ball impact tests. The peak-to-peak value of the pulse produced by the energy harvester extruded in air and water bath were 1.74 V and 3.31V, respectively. The energy harvesters extruded in water bath achieved 1.9 times of output voltage of that extruded in air.
Original languageEnglish
Title of host publication2022 27th International Conference on Automation and Computing (ICAC)
EditorsChenguang Yang, Yuchun Xu
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)9781665498074
ISBN (Print)9781665498081
DOIs
Publication statusPublished - 10 Oct 2022
EventThe 27th IEEE International Conference on Automation and Computing - University of the West of England, Bristol, United Kingdom
Duration: 1 Sep 20223 Sep 2022
Conference number: 27
http://www.cacsuk.co.uk/index.php/icac2022

Publication series

Name2022 27th International Conference on Automation and Computing: Smart Systems and Manufacturing, ICAC 2022

Conference

ConferenceThe 27th IEEE International Conference on Automation and Computing
Abbreviated titleICAC 2022
Country/TerritoryUnited Kingdom
CityBristol
Period1/09/223/09/22
Internet address

Keywords

  • piezoelectric composite energy harvester
  • mathematical model
  • extrusion 3D printing
  • water bath

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