High-temperature and high-energy-density polymer dielectrics for capacitive energy storage

被引：0
|
作者：
Zhou, Yao [1 ]
Li, Qi [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Kay Lab Power Syst, Beijing 100084, Peoples R China
来源：
2018 IEEE 2ND INTERNATIONAL CONFERENCE ON DIELECTRICS (ICD) | 2018年
基金：
北京市自然科学基金;
关键词：
Capacitors; energy storage; dielectric properties; high temperature; CHARGE-DISCHARGE EFFICIENCY; NANOCOMPOSITES;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
High-temperature and high-energy-density polymer dielectrics for capacitive energy storage are critical in capacitors orient to harsh-environment application. The dielectric properties of poly(tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride) (THV) terpolymer are investigated in a broad temperature range. It was found that the thermal stability of the THV terpolymer is significantly improved and a melting temperature of 226 degrees C can be achieved. Due to the higher dielectric constant of 3.6, the THV terpolymer shows 64% higher discharged energy density compared with BOPP. Its high melting temperature, low leakage current, high discharged energy density and high charge-discharge efficiency make THV potentially to be used as dielectric films for high-temperature and high-energy-density capacitive energy storage application.
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页数：4
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