EEStor reported the materials science context for their work and preliminary (pre-certification) results from energy storage layers built in its pilot production facility during early final tuning. The preliminary results show EEStor’s patented and unique composition modified barium titanate (CMBT) powder delivers the benefits of solid-state energy storage when used as a fundamental constituent in a paraelectric dielectric.
EEstor are showing 73.9 watt hours per liter in their ultracapacitor material in a Pilot Plant. This is less than some earlier claims but they are finally producing some material in a pilot facility and it is better than other ultracapacitors.
On Dec. 28, 2012, EEStor’s President Richard Weir hosted Dr. Rick Ulrich , Professor of Chemical Engineering at the University of Arkansas, for a review of and conversation regarding EEStor’s work in pursuing a paraelectric dielectric path for high density energy storage applications. In particular Dr. Ulrich was provided access to data and materials related to EEStor’s CMBT powder.
“Dielectrics with the properties shown here would provide unprecedented amounts of capacitance per area. The possibility of obtaining ferroelectric-sized permittivities with the stability of a paraelectric material is very exciting. A dielectric with a permittivity of 1000 is considered high in current capacitor technology, so materials with the permittivities reported here would be an important breakthrough.”
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