Electrical breakdown and ultrahigh electrical energy density in poly(vinylidene fluoride-hexafluoropropylene) copolymer

Xin Zhou, Xuanhe Zhao, Zhigang Suo, Chen Zou, James Runt, Sheng Liu, Shihai Zhang, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review

196 Scopus citations

Abstract

This paper investigates the electrical breakdown of a polar fluoropolymer, poly(vinylidene fluoride-hexafluoropropylene) which exhibits an exceptionally high discharged electrical energy density (>25 J/ cm3). It is shown that above room temperature, the breakdown strength decreases with temperature. It is further shown that such a temperature dependence of breakdown strength is consistent with the electromechanical breakdown model by taking into consideration of the plastic deformation of semicrystalline polymers.

Original languageEnglish (US)
Article number162901
JournalApplied Physics Letters
Volume94
Issue number16
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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