Charge-discharge characteristics polypyrrole

Panero et al reported the charge-discharge characteristics of Li/LiC104 in a PC/polypyrrole cell [35]. The maximum doping level at a constant current density (0.4 mA cm" ) was 30% (per monomer unit) for a 1 pm thick film, although the value depended on the polypyrrole film thickness. 

Figure 5.10 Charge-discharge characteristics of a Li/polypyrrole cell. Reprinted from [29] by permission of Elsevier Sequoia S.A.

For both types of supercapadtors are required electrode materials having high specific capacitances and quick charge-discharge characteristics. Beside of polyaniline, polypyrrole, also the redoxable PT and its derivatives can be used as efficient materials because of their dopabihty chemically and electrochemically. 

The combination of good mechanical properties and processibility of PE, combined with the electrical conductivity of the ICPs, can be used to create unique composites with electrical properties. These blends can be used as antistatic plastic films where the build up surface static charge is a problem. Omastova et at (1996) have successfully demonstrated the discharge characteristics of polypyrrole/ PE composites [31]. 1.5 wt % content of polypyrrole was sufficient to immediately remove any static charge from the sample surface. 

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