Title :
Dielectric properties of PVDF films and polymer laminates with PVDF for energy storage applications
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida State Univ., Tallahassee, FL, USA
Abstract :
The dc breakdown strength was dependent on the interface between the metal electrode and the PVDF film. When the positive electrode was blocked by inserting a thin layer of insulating polymer, the breakdown voltage was observed to decrease drastically due to different charge densities induced at the interface of the PVDF film. A thin film of PVDF was coated to other polymer films to form polymer laminates. It was found that the dc breakdown strength could be increased by as much as 18% by applying a very thin coating of PVDF. The permittivity and dissipation factor of the PVDF films and the polymer laminate over a wide frequency range was determined. The dc leakage current density was also measured
Keywords :
capacitor storage; electric breakdown; laminates; leakage currents; permittivity; polymer films; DC breakdown strength; DC leakage current density; PVDF film; charge density; dielectric properties; dissipation factor; energy storage capacitor; metal electrode interface; permittivity; polymer laminate; Coatings; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Frequency; Laminates; Leakage current; Permittivity; Plastic insulation; Polymer films;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875720
