Polymer electrolytes—relaxation and transport properties

Autor: Hans Werner Kammer, Chin Han Chan
Rok vydání: 2014
Předmět:
Zdroj: Ionics. 21:927-934
ISSN: 1862-0760
0947-7047
DOI: 10.1007/s11581-014-1256-3
Popis: Relaxations in polymer electrolytes were studied in poly(ethylene oxide) and epoxidized natural rubbers both filled with lithium perchlorate. Impedance relaxation was investigated over a wide range of salt concentration at room temperature. Imaginary part of impedance as a function of frequency exhibits generally one maximum and one minimum. These two extreme values rule properties in the DC limit. They can be related to transport properties and degree of dissociation. It turns out that DC conductivity is dominantly ruled by transport coefficient.
Databáze: OpenAIRE