Electrochemical Supercapacitors – Second Annual Report

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Authors
  1. Freund, M.S.
  2. Suppes, G.
  3. Deore, B.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);Manitoba Univ, Winnipeg MAN (CAN) Dept of Chemistry
Abstract
This report summarizes results from the second year of this three year project in developing supercapacitor electrode materials based on conducting polymers. Work has continued using the controlled growth polymerization method to manipulate porosity in films of polypyrrole. It was found that composites of polypyrrole and multiwalled carbon nanotubes had an ionic conductivity two orders of magnitude greater than the polypyrrole films alone. Polypyrrole films on carbon cloth were also examined and found to possess enhanced stability if the polymer is built-up in layers. Finally, preliminary results indicate that conducting polymer films containing phosphotungstic acid may serve well as the negative electrode in an asymmetric capacitor.

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Report Number
DRDC-ATLANTIC-CR-2008-125 — Contractor Report
Date of publication
01 Sep 2008
Number of Pages
46
DSTKIM No
CA032166
CANDIS No
531287
Format(s):
CD ROM

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