Enhanced breakdown strength and energy density in PVDF nanocomposites with functionalized MgO nanoparticles

被引：42
作者：
Chen, Sha-sha [1 ]
Hu, Jun [1 ]
Gao, Lei [1 ]
Zhou, Yao [1 ]
Peng, Si-min [1 ]
He, Jin-liang [1 ]
Dang, Zhi-min [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
来源：
RSC ADVANCES | 2016年 / 6卷 / 40期
基金：
中国国家自然科学基金;
关键词：
POLYMER NANOCOMPOSITES; DIELECTRIC-PROPERTIES; SURFACE MODIFICATION;
D O I：
10.1039/c6ra01869f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Dielectric polymer materials with high energy storage capability are highly desirable for use in both electric power and electronics industries. Previous studies have focused on developing polyvinylidene fluoride (PVDF)-based dielectric polymer materials with enhanced dielectric permittivity, but such nanocomposites also have a considerably decreased breakdown strength. In this study, we provide an effective strategy to considerably improve the breakdown strength of PVDF nanocomposites by introducing a small amount of functionalized MgO nanoparticles. The Weibull breakdown strength has been increased by 59% and the charge-discharge energy efficiency has also been considerably improved. This study's findings enable the design and development of advanced dielectric polymer nanocomposites with high breakdown strength and energy density for energy storage applications.
引用
收藏
页码：33599 / 33605
页数：7
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