Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77390
PIRA download icon_1.1View/Download Full Text
Title: Composite multilayers capacitors with colossal permittivity for electronics and energy storage applications
Authors: Hao, J 
Tse, MY
Issue Date: 2018
Source: TechConnect World Innovation Conference & Expo (TCWI), Anaheim California, May 13-16, 2018
Abstract: Brief Description of Technology in layman’s terms:
With global demand for energy storage growing rapidly over the past decade, surging research efforts worldwide have been put in developing novel capacitors, which can achieve fast charging, high power density and long cycling lifetime than conventional batteries. This innovation of PolyU is the first report on simultaneously achieving large dielectric constant (i.e. a lot of energy can be stored); negligible dielectric loss (i.e. energy not leaking out and being wasted easily) and high energy density in flexible composite capacitors based on metal‐ion codoped colossal permittivity materials.
The host titanium dioxide used in this colossal permittivity system is environment‐friendly, non‐toxic and abundant. The process developed (solution casting and hot‐pressing technique) is relatively simple and low cost for mass production of the composite films, as the ceramic powder fillers are fabricated by conventional solid‐state sintering method. The dielectric capacitors we developed based on composite multi‐layers present a relatively high dielectric constant with exceptional low loss. The maximum energy density achieved simultaneously is remarkable compared to nano‐composites with other ceramic particle fillers. Such novel composite multi‐layers capacitors are expected to be greatly superior to the conventional one‐dielectric currently used in such systems. Moreover, power electronic applications are currently limited by the capacitor size and performance. Multi‐layered capacitors can be easily patterned, with fully solid‐state construction, thus being superior to conventional electrochemical construction in many aspects including improved safety.
Keywords: Colossal permittivity co‐doped TiO2
Polymer composite dielectrics
Permittivity films
Solid‐state capacitors
Energy storage
Microelectronic
Rights: All right reserved.
Posted with the permission of the authors.
Appears in Collections:Presentation

Files in This Item:
File Description SizeFormat 
Summary_of_Composite_multilayers_capacitors.pdf2.81 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Other Version
Show full item record

Page views

275
Last Week
0
Last month
Citations as of Jul 14, 2024

Downloads

119
Citations as of Jul 14, 2024

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.