Time and poling history dependent energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) random copolymers

Fang Xiao Guan, Jing Wang, Ji Lin Pan, Qing Wang, Lei Zhu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We studied cycle time (0.01-10 s with triangular input waves) and poling history (continuous versus fresh poling) dependent electric energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)] films using the electric displacement - the electric field (D-E) hysteresis loop measurements. Since the permanent dipoles in PVDF are orientational in nature, it is generally considered that both charging and discharging processes should be time and poling history dependent. Intriguingly, our experimental results showed that the charging process depended heavily on the cycle time and the prior poling history, and thus the D-E hysteresis loops had different shapes accordingly. However, the discharged energy density did not change no matter how the D-E loop shape varied due to different measurements. This experimental result could be explained in terms of reversible and irreversible polarizations. The reversible polarization could be charged and discharged fairly quickly (< 5 ms for each process), while the irreversible polarization depended heavily on the poling time and the prior poling history. This study suggests that it is only meaningful to compare the discharged energy density for PVDF and its copolymer films when different cycle times and poling histories are used.

Original languageEnglish (US)
Pages (from-to)65-80
Number of pages16
JournalChinese Journal of Polymer Science (English Edition)
Volume29
Issue number1
DOIs
StatePublished - Jan 1 2011

Fingerprint

Energy storage
Copolymers
Electric fields
Polarization
Hysteresis loops
Electric energy storage
polyvinylidene fluoride

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics

Cite this

@article{2d1fe087c37c4e10b7fb44186f0880ba,
title = "Time and poling history dependent energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) random copolymers",
abstract = "We studied cycle time (0.01-10 s with triangular input waves) and poling history (continuous versus fresh poling) dependent electric energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)] films using the electric displacement - the electric field (D-E) hysteresis loop measurements. Since the permanent dipoles in PVDF are orientational in nature, it is generally considered that both charging and discharging processes should be time and poling history dependent. Intriguingly, our experimental results showed that the charging process depended heavily on the cycle time and the prior poling history, and thus the D-E hysteresis loops had different shapes accordingly. However, the discharged energy density did not change no matter how the D-E loop shape varied due to different measurements. This experimental result could be explained in terms of reversible and irreversible polarizations. The reversible polarization could be charged and discharged fairly quickly (< 5 ms for each process), while the irreversible polarization depended heavily on the poling time and the prior poling history. This study suggests that it is only meaningful to compare the discharged energy density for PVDF and its copolymer films when different cycle times and poling histories are used.",
author = "Guan, {Fang Xiao} and Jing Wang and Pan, {Ji Lin} and Qing Wang and Lei Zhu",
year = "2011",
month = "1",
day = "1",
doi = "10.1007/s10118-010-1020-8",
language = "English (US)",
volume = "29",
pages = "65--80",
journal = "Chinese Journal of Polymer Science (English Edition)",
issn = "0256-7679",
publisher = "Springer Verlag",
number = "1",

}

Time and poling history dependent energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) random copolymers. / Guan, Fang Xiao; Wang, Jing; Pan, Ji Lin; Wang, Qing; Zhu, Lei.

In: Chinese Journal of Polymer Science (English Edition), Vol. 29, No. 1, 01.01.2011, p. 65-80.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Time and poling history dependent energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) random copolymers

AU - Guan, Fang Xiao

AU - Wang, Jing

AU - Pan, Ji Lin

AU - Wang, Qing

AU - Zhu, Lei

PY - 2011/1/1

Y1 - 2011/1/1

N2 - We studied cycle time (0.01-10 s with triangular input waves) and poling history (continuous versus fresh poling) dependent electric energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)] films using the electric displacement - the electric field (D-E) hysteresis loop measurements. Since the permanent dipoles in PVDF are orientational in nature, it is generally considered that both charging and discharging processes should be time and poling history dependent. Intriguingly, our experimental results showed that the charging process depended heavily on the cycle time and the prior poling history, and thus the D-E hysteresis loops had different shapes accordingly. However, the discharged energy density did not change no matter how the D-E loop shape varied due to different measurements. This experimental result could be explained in terms of reversible and irreversible polarizations. The reversible polarization could be charged and discharged fairly quickly (< 5 ms for each process), while the irreversible polarization depended heavily on the poling time and the prior poling history. This study suggests that it is only meaningful to compare the discharged energy density for PVDF and its copolymer films when different cycle times and poling histories are used.

AB - We studied cycle time (0.01-10 s with triangular input waves) and poling history (continuous versus fresh poling) dependent electric energy storage and discharge behaviors in poly(vinylidene fluoride-co-hexafluoropropylene) [P(VDF-HFP)] films using the electric displacement - the electric field (D-E) hysteresis loop measurements. Since the permanent dipoles in PVDF are orientational in nature, it is generally considered that both charging and discharging processes should be time and poling history dependent. Intriguingly, our experimental results showed that the charging process depended heavily on the cycle time and the prior poling history, and thus the D-E hysteresis loops had different shapes accordingly. However, the discharged energy density did not change no matter how the D-E loop shape varied due to different measurements. This experimental result could be explained in terms of reversible and irreversible polarizations. The reversible polarization could be charged and discharged fairly quickly (< 5 ms for each process), while the irreversible polarization depended heavily on the poling time and the prior poling history. This study suggests that it is only meaningful to compare the discharged energy density for PVDF and its copolymer films when different cycle times and poling histories are used.

UR - http://www.scopus.com/inward/record.url?scp=78651369717&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651369717&partnerID=8YFLogxK

U2 - 10.1007/s10118-010-1020-8

DO - 10.1007/s10118-010-1020-8

M3 - Article

AN - SCOPUS:78651369717

VL - 29

SP - 65

EP - 80

JO - Chinese Journal of Polymer Science (English Edition)

JF - Chinese Journal of Polymer Science (English Edition)

SN - 0256-7679

IS - 1

ER -