Accession Number:

ADA371165

Title:

Alkaline Electrochemical Capacitor and Electrode Fabrication

Descriptive Note:

Final rept. Jan 97-Nov 99

Corporate Author:

AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE

Personal Author(s):

Report Date:

1999-11-01

Pagination or Media Count:

10.0

Abstract:

Highly capacitive high surface area electrodes that are electrochemically stable in strong alkaline electrolyte will form the basis for a new generation of electrical and electrochemical energy storage and conversion devices. A new type of electrochemical capacitor is described in addition to procedures for making the required electrodes. The subject low cost alkaline electrochemical capacitor designs are based upon titanium nitride electrodes which exhibit 125 mFsq cm surface capacitance density and remarkable electrochemical stability over a relatively wide -55 deg C to 100 deg C temperature range in aqueous potassium hydroxide of approximately 15 pH alkalinity. With energy density in excess of 300 mJcc and the potential to exceed a power density of 100 Wcc, the alkaline electrochemical capacitor represents a significant advancement in technology for high power energy storage.

Subject Categories:

  • Electrochemical Energy Storage

Distribution Statement:

APPROVED FOR PUBLIC RELEASE