Enhanced permittivity and energy density in PVDF/PMMA/TiO<inf>2</inf> nanocomposite

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NETL
IEEE

外文摘要：The ongoing demand of electrical and electronic device miniaturization puts a great challenge on energy storage materials。 Development of energy storage capacitors mainly rely on development of advanced dielectric materials， which asking for high energy density and low loss。 Therefore， in this work， the permittivity of poly (vinylidene fluoride) (PVDF) is carefully enhanced by doping inorganic fillers to achieve a superior energy storage performance。 To avoid the degradation on breakdown strength companied with inorganic doping， titanium dioxide (TiO<inf xmlns:mml="http://www。w3。org/1998/Math/MathML" xmlns:xlink="http://www。w3。org/1999/xlink">2</inf>) nanoparticles with close permittivity and polymethyl methacrylate (PMMA) were carefully loaded。 The nanocomposite presents an energy density about 5。8J/cm<sup xmlns:mml="http://www。w3。org/1998/Math/MathML" xmlns:xlink="http://www。w3。org/1999/xlink">3</sup> with a breakdown strength about 367kV/mm， which are about three times of polypropylene。 Our results might help understand the relationship of microstructure and electric properties， and therefore provide a promising approach to develop high energy density dielectric nanocomposite。

外文关键词：

PermittivityDielectricsElectric breakdownEnergy storageElectric fieldsPolymersTemperature measurement

作者：

Yongbin Liu、Yang Zhang、Ruifeng Yao、Tongxin Zhao、Jinghui Gao、Lisheng Zhong

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作者单位：

State Key Laboratory of Electrical Insulation for Power Equipment Xi'an Jiaotong University,Xi’an,China,710049

State Key Laboratory of Electrica

会议名称：

IEEE Conference on Electrical Insulation and Dielectric Phenomena

会议地点：

Richland(US)

会议母体文献：

2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena

页码：

62-65

出版时间：

2019

DOI：

10.1109/CEIDP47102.2019.9009820