A dielectric polymer with high electric energy density and fast discharge speed

Baojin Chu, Xin Zhou, Kailiang Ren, Bret Neese, Minren Lin, Qing Wang, F. Bauer, Qiming Zhang

Research output: Contribution to journalArticle

1244 Citations (Scopus)

Abstract

Dielectric polymers with high dipole density have the potential to achieve very high energy density, which is required in many modern electronics and electric systems. We demonstrate that a very high energy density with fast discharge speed and low loss can be obtained in defect-modified poly(vinylidene fluoride) polymers. This is achieved by combining nonpolar and polar molecular structural changes of the polymer with the proper dielectric constants, to avoid the electric displacement saturation at electric fields well below the breakdown field. The results indicate that a very high dielectric constant may not be desirable to reach a very high energy density.

Original languageEnglish (US)
Pages (from-to)334-336
Number of pages3
JournalScience
Volume313
Issue number5785
DOIs
StatePublished - Jul 21 2006

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Polymers
polyvinylidene fluoride

All Science Journal Classification (ASJC) codes

  • General

Cite this

Chu, Baojin ; Zhou, Xin ; Ren, Kailiang ; Neese, Bret ; Lin, Minren ; Wang, Qing ; Bauer, F. ; Zhang, Qiming. / A dielectric polymer with high electric energy density and fast discharge speed. In: Science. 2006 ; Vol. 313, No. 5785. pp. 334-336.
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Chu, B, Zhou, X, Ren, K, Neese, B, Lin, M, Wang, Q, Bauer, F & Zhang, Q 2006, 'A dielectric polymer with high electric energy density and fast discharge speed', Science, vol. 313, no. 5785, pp. 334-336. https://doi.org/10.1126/science.1127798

A dielectric polymer with high electric energy density and fast discharge speed. / Chu, Baojin; Zhou, Xin; Ren, Kailiang; Neese, Bret; Lin, Minren; Wang, Qing; Bauer, F.; Zhang, Qiming.

In: Science, Vol. 313, No. 5785, 21.07.2006, p. 334-336.

Research output: Contribution to journalArticle

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T1 - A dielectric polymer with high electric energy density and fast discharge speed

AU - Chu, Baojin

AU - Zhou, Xin

AU - Ren, Kailiang

AU - Neese, Bret

AU - Lin, Minren

AU - Wang, Qing

AU - Bauer, F.

AU - Zhang, Qiming

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AB - Dielectric polymers with high dipole density have the potential to achieve very high energy density, which is required in many modern electronics and electric systems. We demonstrate that a very high energy density with fast discharge speed and low loss can be obtained in defect-modified poly(vinylidene fluoride) polymers. This is achieved by combining nonpolar and polar molecular structural changes of the polymer with the proper dielectric constants, to avoid the electric displacement saturation at electric fields well below the breakdown field. The results indicate that a very high dielectric constant may not be desirable to reach a very high energy density.

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