Ultracapacitors Based on High Surface Area Nitride/Carbide Electrodes
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Ultracapacitors Based on High Surface Area Nitride/Carbide
Recent gains in double layer capacitor technology have
significantly improved the energy and power densities of
ultracapacitors. Ultracapacitors attain high capacitances and
energy densities by double layer charge storage at conductive
high surface area electrodes. Recent developments in catalyst
technology have led to new routes to the preparation of high
surface area early transition metal nitrides and carbides.
These materials have physical and chemical properties that
make them interesting candidates for use as electrodes in
ultracapacitors. In the proposed project we will explore the
feasibility of using high surface area tungsten nitride and
carbide as ultracapacitor electrodes with a performance
objective of 1 F/cm2. The Phase II effort will emphasize
optimization of the electrodes and fabrication of prototype
The research outlined in this proposal will lead to new
materials for use as electrodes in ultracapacitors.
Ultracapacitors exceed the charge and discharge rates, and
meet or exceed the energy densities of batteries.
Ultracapacitors are thus of interest as power sources for many
commercial and military applications. Potential markets
include electric vehicle load leveling, portable power tools,
volatile memory back-up power supplies, weapon fuzing devices,
electromagnetic launch systems, and space power conditioning.
T/J Technologies, Inc
17445 Cameron Drive
Northville, MI 48167