Novel Supercapacitor Materials for High Output Pulse Energy Applications

This Defense Research and Development Canada funded project supports 4 research groups across Canada to perform research into new materials for supercapacitor fabrication.  In particular, our group is focusing on the development of conducting polymers as pseudocapacitor materials with enhanced capacity for storing charge thereby increasing energy density, and enhanced charging and discharging rates to increase power density. 

Supercapacitors and ultracapacitors are power sources that are positioned between capacitors (small energy density, high power density) and batteries (large energy density, low power density).  They are expected to be used in combination with fuel cells and batteries in power intensive applications such as transportation.

G. M. Suppes, C. G. Cameron, and M. S. Freund*: “A Polypyrrole/Phosphomplybdic Acid Poly(3,4-ethylenedioxythiophene)/Phosphtungstic Acid Asymmetric Supercapacitor” J. Electrochem. Soc. 157: A1030-A1034 (2010)

G. M. Suppes, B. A. Deore and M. S. Freund “Porous Conducting Polymer/ Heteropolyoxometalate Hybrid Material for Electrochemical Supercapacitor Applications,” Langmuir, 24: 1064-1069 (2008)

E. Bravo-Grimaldo, S. Hachey, C. G. Cameron and M. S. Freund: “Metastable Reaction Mixtures for the in situ Polymerization of Conducting Polymers,” Macromolecules, 40: 7166-7170 (2007).