Electrically active polymers batteries/supercapacitors

Conducting polymers such as polyacetylene, polypyrrole, polyaniline, polythiophene, etc. have been actively studied for use in various fields due to their interesting properties batteries,46 electrochromic displays,47 materials for supercapacitors,48 corrosion protection,49 protecting layers for static electricity,50 materials for organic electroluminescence displays,51 sensing materials,52 etc. Polypyrrole is reported to be extremely rigid, with a semi-crystalline structure. 

PPy offers tremendous technological potential, especially as electrodes for rechargeable batteries, sensors or supercapacitors. Since the electrochemical activity of PPy electrodes is proportional to the surface area, they must be processed to a shape in which the ratio of the surface area to volume or weight is high. This feature could be obtained via converting PPy to a fibre with small diameter, i.e., a nanofibre. In the nanoscale, the electrical conductivity of conductive polymers is increased. 

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