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A High Power Electrochemical Double Layer Capacitor for Hybrid Operations

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 26644
Amount: $85,119.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1704 Cliftgate Road
Knoxville, TN 37909
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Josip Caja
 (615) 974-3505
Business Contact
Phone: () -
Research Institution

Feasibility of double layer capacitors (DLC) utilizing two types of molten salts as electrolytes will be investigated. These double layer capacitors involve two high surface area carbon electrodes, a separator and molten salt electrolytes. They will operate in the range of temperatures from room temperature to 260oC. A high single cell voltage and low cell resistance are anticipated for these double layer capacitors; a high energy density and power are also expected. A single cell voltage as high as 4.4 V is expected for one type of DLC. Energy density calculated for one of the DLC's is 4 times greater than for the C/H2SO4/C capacitor; the maximum power achieved will also be 4 times greater. A prototype of the capacitor will be designed, built and evaluated during the Phase I program. Anticipated Benefits: These capacitors may be utilized in a variety of applications demanding a high power and a high energy density including the hybrid systems for electric traction.

* Information listed above is at the time of submission. *

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