journal article·2017-07-01Open access

Enhanced electric polarization and breakdown strength in the all-organic sandwich-structured poly(vinylidene fluoride)-based dielectric film for high energy density capacitor

Yue Zhang, Qingguo Chi, Lizhu Liu, Changhai Zhang, Chen Chen, Xuan Wang, Qingquan Lei

APL Materials· Volume 5· Issue 7

Abstract

It is essential to develop the dielectric energy storage capacitor for the modern electrical and electronic equipment. Here, the all-organic sandwich-structured composite with superior breakdown strength and delayed saturation polarization is presented. Furthermore, the energy storage characteristics of the composite are enhanced by the poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) fiber and the redistribution of local electric field. The dielectric permittivity of composite increases to ∼16, and the discharged energy density is high to ∼8.7 J/cm3 at 360 kV/mm, and the breakdown strength is up to ∼408 kV/mm. The excellent performance of the composite broadens the application in the field of power electronics industry.
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Research context

OpenAlex topics: Dielectric materials and actuators · Advanced Sensor and Energy Harvesting Materials · Electromagnetic wave absorption materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology 1 , Harbin 150080, People’s Republic of China

School of Materials Science and Engineering, Harbin University of Science and Technology 2 , Harbin 150080, People’s Republic of China

School of Electrical and Electronic Engineering, Harbin University of Science and Technology 3 , Harbin 150080, People’s Republic of China

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China 4 , Chengdu 610054, People’s Republic of China

Funding

National Natural Science Foundation of China · Open Foundation of State Key Laboratory of Electronic Thin Files and Integrated Devices

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