Nanostructures and dielectric properties of PVDF-based polymer films with high energy density and low energy losses

Masahiko Ando, Naoki Yoshimoto, Yuichiro Yoshitake, Shuji Kato, Hidekazu Kodama, Takeo Furukawa, Koji Tashiro

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Based on the investigation of mechanism for large dielectric losses in relaxor fluorinated polymers, polyvinylidene fluoride (PVDF) derivatives, a new nanostructure-controlled PVDF based polymer films with low dielectric toss. tanδ < 1% (0.6%). and high dielectric constant, εr = 13 at frequency of 1 kHz, was proposed for electrical energy storage applications. The high dielectric loss was mainly due to the electric-field induced α-β phase transition, and one dimensional extension of P(VDF-TrFE)-g-PEMA films was found to reduce the α phase component resulting in reduction of the dielectric loss while keeping the high dielectric constant. In-situ FTIR measurements suggested a possibility of further reducing the dielectric-loss.

Original languageEnglish
Title of host publicationMaterials Challenges for Energy Storage Across Multiple Scales
EditorsA. Cresce
PublisherMaterials Research Society
Number of pages6
ISBN (Electronic)9781510806207
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event2014 MRS Fall Meeting - Boston, United States
Duration: 2014 Nov 302014 Dec 5

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2014 MRS Fall Meeting
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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