Barium titanate nanocomposite capacitor FY09 year end report.

Stevens, Tyler E. ; DiAntonio, Christopher Brian ; Yang, Pin ; Chavez, Tom P. ; Winter, Michael R. ; Monson, Todd C. ; Roesler, Alexander William ; Fellows, Benjamin D.

Sandia National Laboratories

关键词: Breakdown;    Energy Storage.;    Barium;    Capacitors-Design And Construction.;    36 Materials Science;   

DOI  :  10.2172/976944
RP-ID  :  SAND2009-7301
RP-ID  :  AC04-94AL85000
RP-ID  :  976944

美国|英语

来源: UNT Digital Library

【 摘 要 】

This late start RTBF project started the development of barium titanate (BTO)/glass nanocomposite capacitors for future and emerging energy storage applications. The long term goal of this work is to decrease the size, weight, and cost of ceramic capacitors while increasing their reliability. Ceramic-based nanocomposites have the potential to yield materials with enhanced permittivity, breakdown strength (BDS), and reduced strain, which can increase the energy density of capacitors and increase their shot life. Composites of BTO in glass will limit grain growth during device fabrication (preserving nanoparticle grain size and enhanced properties), resulting in devices with improved density, permittivity, BDS, and shot life. BTO will eliminate the issues associated with Pb toxicity and volatility as well as the variation in energy storage vs. temperature of PZT based devices. During the last six months of FY09 this work focused on developing syntheses for BTO nanoparticles and firing profiles for sintering BTO/glass composite capacitors.