Abstract
Ionic transport behavior across an electropolymerized polypyrrole/polyazulene composite film was investigated by using ac impedance analysis, and its charge-discharge characteristics were also studied. Co-electropolymerization of pyrrole and azulene was well defined and fairly stoichiometric in propylene carbonate solution. The charge capacity for the composite films showed a remarkable increase for films with about 50 to 75% of azulene monomer content, and the behavior was correlated with morphological and diffusivity changes. The charge-discharge characteristics were examined for cells with a lithium anode and various polypyrrole/polyazulene composite cathodes. Pure polypyrrole cathodes behaved exactly like a capacitor at low frequency, while pure polyazulene cathodes showed excellent rechargeable behavior with very flat discharge curves. Composite cathodes showed intermediate behavior.
| Original language | English |
|---|---|
| Pages (from-to) | 494-499 |
| Number of pages | 6 |
| Journal | Journal of the Electrochemical Society |
| Volume | 137 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1990 Feb |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Electrochemistry
- Materials Chemistry
