Abstract
It is well known that addition of an inert inorganic substance or a polymer of high glass transition temperature to poly(ethylene oxide)-based polymeric electrolytes improves their mechanical properties and extends their temperature stability range. Several recent papers have shown that such composites or polymeric blends exhibit conductivity values considerably higher than pristine PEO-based electrolytes. In this paper we summarize our studies on polymeric electrolytes based on poly(ethylene oxide) blends with various methacrylic monomers as well as on composite electrolytes containing various inorganic and organic additives. The effects of molecular weight, tacticity, method of blend preparation on conductivity and phase structure of the studied electrolytes are discussed. The results of studies performed on poly(ethylene oxide) composites with aluminas, ceramic and glassy inorganic electrolytes are also presented. Some examples showing the role of low molecular weight plasticizer on properties of polymeric electrolytes are described.
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