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Ferroelectric polymer networks with high energy density and improved discharged efficiency for dielectric energy storage
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Metadata
Document Title
Ferroelectric polymer networks with high energy density and improved discharged efficiency for dielectric energy storage
Author
Khanchaitit P., Han K., Gadinski M.R., Li Q., Wang Q.
Name from Authors Collection
Affiliations
Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, United States; National Science and Technology Development Agency, National Nanotechnology Center, Pathum Thani, 12120, Thailand
Type
Article
Source Title
Nature Communications
ISSN
20411723
Year
2013
Volume
4
Open Access
Bronze
Publisher
Nature Publishing Group
DOI
10.1038/ncomms3845
Format
Abstract
Ferroelectric polymers are being actively explored as dielectric materials for electrical energy storage applications. However, their high dielectric constants and outstanding energy densities are accompanied by large dielectric loss due to ferroelectric hysteresis and electrical conduction, resulting in poor charge-discharge efficiencies under high electric fields. To address this long-standing problem, here we report the ferroelectric polymer networks exhibiting significantly reduced dielectric loss, superior polarization and greatly improved breakdown strength and reliability, while maintaining their fast discharge capability at a rate of microseconds. These concurrent improvements lead to unprecedented charge-discharge efficiencies and large values of the discharged energy density and also enable the operation of the ferroelectric polymers at elevated temperatures, which clearly outperforms the melt-extruded ferroelectric polymer films that represents the state of the art in dielectric polymers. The simplicity and scalability of the described method further suggest their potential for high energy density capacitors. © 2013 Macmillan Publishers Limited. All rights reserved.
Funding Sponsor
Office of Naval Research
License
CC BY
Rights
Author
Publication Source
Scopus