Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field

Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field

The Ba(Fe0.5Ta0.5)O3@DA/PVDF flexible composite films with sandwich-structured are prepared by solution-casting method. According to SEM image, the thickness of the composite film is about 15 μm and the each layer is about 5 μm. The sandwich-structured nanocomposite films not only have higher permit...

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Main Authors: Zhuo Wang, Yinbo Li, Xiaoying Wang, Jiahao Fan, Zhihui Yi, Menglei Kong, Ning Xu
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Journal of Materiomics
Online Access:http://www.sciencedirect.com/science/article/pii/S2352847819302278
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spelling doaj-e34eee3225f0433cadd0f5958098f2992020-11-25T02:34:37ZengElsevierJournal of Materiomics2352-84782020-06-0162315320Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric fieldZhuo Wang0Yinbo Li1Xiaoying Wang2Jiahao Fan3Zhihui Yi4Menglei Kong5Ning Xu6School of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, China; Corresponding author. School of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China.School of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaSchool of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaSchool of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaSchool of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaSchool of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaSchool of Materials Science and Engineering, Shaanxi University of Science & Technology, 710021, Xi’an, China; School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi’an, 710021, ChinaThe Ba(Fe0.5Ta0.5)O3@DA/PVDF flexible composite films with sandwich-structured are prepared by solution-casting method. According to SEM image, the thickness of the composite film is about 15 μm and the each layer is about 5 μm. The sandwich-structured nanocomposite films not only have higher permittivity but also lower AC conductivity. The high permittivity is due to the large permittivity of BFT and the enhanced interface polarization between ceramic particles and polymer matrix. The low AC conductivity is due to the absence of conductive pathways in the PVDF layer. At low electric field strength of 150 MV/m, the energy density of sandwich-structure composite films filled with 1 vol% is 1.93 J/cm3. When the breakdown strength is 250 MV/m, the maximum energy storage density is increased to 4.87 J/cm3. The sandwich-structure Ba(Fe0.5Ta0.5)O3@DA/PVDF flexible composite films with outstanding energy storage properties in lower electric field can be used for wearable devices in the future. Keywords: Sandwich structure, Conductive pathways, Energy storage, Lower electric fieldhttp://www.sciencedirect.com/science/article/pii/S2352847819302278
collection DOAJ
language English
format Article
sources DOAJ
author Zhuo Wang
Yinbo Li
Xiaoying Wang
Jiahao Fan
Zhihui Yi
Menglei Kong
Ning Xu
spellingShingle Zhuo Wang
Yinbo Li
Xiaoying Wang
Jiahao Fan
Zhihui Yi
Menglei Kong
Ning Xu
Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
Journal of Materiomics
author_facet Zhuo Wang
Yinbo Li
Xiaoying Wang
Jiahao Fan
Zhihui Yi
Menglei Kong
Ning Xu
author_sort Zhuo Wang
title Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
title_short Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
title_full Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
title_fullStr Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
title_full_unstemmed Reduced conductivity in sandwich-structured BFT@DA/PVDF flexible nanocomposites for high energy storage density in lower electric field
title_sort reduced conductivity in sandwich-structured bft@da/pvdf flexible nanocomposites for high energy storage density in lower electric field
publisher Elsevier
series Journal of Materiomics
issn 2352-8478
publishDate 2020-06-01
description The Ba(Fe0.5Ta0.5)O3@DA/PVDF flexible composite films with sandwich-structured are prepared by solution-casting method. According to SEM image, the thickness of the composite film is about 15 μm and the each layer is about 5 μm. The sandwich-structured nanocomposite films not only have higher permittivity but also lower AC conductivity. The high permittivity is due to the large permittivity of BFT and the enhanced interface polarization between ceramic particles and polymer matrix. The low AC conductivity is due to the absence of conductive pathways in the PVDF layer. At low electric field strength of 150 MV/m, the energy density of sandwich-structure composite films filled with 1 vol% is 1.93 J/cm3. When the breakdown strength is 250 MV/m, the maximum energy storage density is increased to 4.87 J/cm3. The sandwich-structure Ba(Fe0.5Ta0.5)O3@DA/PVDF flexible composite films with outstanding energy storage properties in lower electric field can be used for wearable devices in the future. Keywords: Sandwich structure, Conductive pathways, Energy storage, Lower electric field
url http://www.sciencedirect.com/science/article/pii/S2352847819302278
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AT yinboli reducedconductivityinsandwichstructuredbftdapvdfflexiblenanocompositesforhighenergystoragedensityinlowerelectricfield
AT xiaoyingwang reducedconductivityinsandwichstructuredbftdapvdfflexiblenanocompositesforhighenergystoragedensityinlowerelectricfield
AT jiahaofan reducedconductivityinsandwichstructuredbftdapvdfflexiblenanocompositesforhighenergystoragedensityinlowerelectricfield
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