Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting

An optimized method of vibration Energy Harvesting is based on a step-down transformer that regulates the power flow from the piezoelectric element to the desired electronic load. Taking into account parameters of the whole system, the “optimal” voltage gain the piezoelectric transformer can be dete...

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Main Authors: L. Kozielski, K. Feliksik, B. Wodecka-Duś, D. Szalbot, S. Tutu
Format: Article
Language:English
Published: Polish Academy of Sciences 2018-10-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/108004/AMM-2018-3-24-Kozielski.pdf
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author L. Kozielski
K. Feliksik
B. Wodecka-Duś
D. Szalbot
S. Tutu
author_facet L. Kozielski
K. Feliksik
B. Wodecka-Duś
D. Szalbot
S. Tutu
author_sort L. Kozielski
collection DOAJ
description An optimized method of vibration Energy Harvesting is based on a step-down transformer that regulates the power flow from the piezoelectric element to the desired electronic load. Taking into account parameters of the whole system, the “optimal” voltage gain the piezoelectric transformer can be determined where the harvested power is maximized for the actual level of mechanical excitation. Consequently the piezoelectric transformers can be used to boost up the conversion of mechanical strain into electrical power with considerable potential in Energy Harvesting applications. Nowadays however, the most important factor is usage of lead free material for its construction. Additional desired parameters of such ceramics include high value of piezoelectric coefficients, low dielectric losses and reasonable power density. This work for first time proposes a lead free K0.5Na0.5NbO3 (KNN) material implementation for stack type of piezoelectric transformer that is designed for load efficiency optimization of vibration energy harvester.
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spelling doaj.art-6bb0d94d74df4628a65dcdf72dc089e62022-12-22T03:41:47ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092018-10-01vol. 63No 312751280https://doi.org/10.24425/123801Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy HarvestingL. KozielskiK. FeliksikB. Wodecka-DuśD. SzalbotS. TutuAn optimized method of vibration Energy Harvesting is based on a step-down transformer that regulates the power flow from the piezoelectric element to the desired electronic load. Taking into account parameters of the whole system, the “optimal” voltage gain the piezoelectric transformer can be determined where the harvested power is maximized for the actual level of mechanical excitation. Consequently the piezoelectric transformers can be used to boost up the conversion of mechanical strain into electrical power with considerable potential in Energy Harvesting applications. Nowadays however, the most important factor is usage of lead free material for its construction. Additional desired parameters of such ceramics include high value of piezoelectric coefficients, low dielectric losses and reasonable power density. This work for first time proposes a lead free K0.5Na0.5NbO3 (KNN) material implementation for stack type of piezoelectric transformer that is designed for load efficiency optimization of vibration energy harvester.https://journals.pan.pl/Content/108004/AMM-2018-3-24-Kozielski.pdfenergy harvestingpiezoelectric effectpiezoelectric transformerpiezoelectric properties
spellingShingle L. Kozielski
K. Feliksik
B. Wodecka-Duś
D. Szalbot
S. Tutu
Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
Archives of Metallurgy and Materials
energy harvesting
piezoelectric effect
piezoelectric transformer
piezoelectric properties
title Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
title_full Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
title_fullStr Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
title_full_unstemmed Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
title_short Hot Pressed K0.5Na0.5NbO3 Material for Piezoelectric Transformer for Energy Harvesting
title_sort hot pressed k0 5na0 5nbo3 material for piezoelectric transformer for energy harvesting
topic energy harvesting
piezoelectric effect
piezoelectric transformer
piezoelectric properties
url https://journals.pan.pl/Content/108004/AMM-2018-3-24-Kozielski.pdf
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