ELECTRICAL-PROPERTIES OF MELTING-PREPARED POLYMER ELECTROLYTE CARBON COMPOSITES

A new method of preparation of polymer electrolyte/carbon composites i s presented. Thermal and electrical properties of the materials are st udied. The DSC analysis shows that the salt complexation by the polyme r occurs at least semi-quantitatively. The electric behaviour characte rized by impedance spectroscopy is described in terms of three distinc t processes: interfacial, intra- and inter-aggregates. An electrical e quivalent circuit is proposed and the corresponding parameters are stu died in function of carbon concentration and temperature.