New composite solid electrolytes based on a polymer and ionic liquids
[ 1 ] Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] employee
2004
scientific article
english
- Ionic liquid
- Polymer electrolyte
- 1-Ethyl-3-methylimidazolium tetrafluoroborate
- 1-Butyl-3-methylimidazolium hexafluorophosphate 1-butyl-1-methylpyrrolidinium bis(trifluoromethane sulfonyl)imide
EN A series of ion-conducting, thin-film polymer electrolytes, based on a polymer (poly(acrylonitrile) [PAN], poly(ethyleneoxide) [PEO] and poly(vinylalcohol) [PVA]), and ionic liquids (IL), polymer – IL, as well as ternary systems PAN – IL –TMS were prepared using the casting technique (TMS is sulpholane, ionic liquids are: 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium hexafluorophosphate and 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethane sulfonyl)imide). The polymer electrolytes showed a rubber-like elasticity. Maximum conductivity was at the level of 15 mS/cm at room temperature. The electrochemical stability window of the electrolytes, determined at the glassy carbon electrode, was of ca. 3 V.
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