NEW DUAL-PHASE POLYMER ELECTROLYTES PREPARED FROM NBR SBR LATICES

A new type of Li+ ion conducting polymer electrolytes consisting of two phases, one of which is a highly polar region (impregnated with lithium salt solution), forming ion conductive channels, while the other is a nonpolar region, forming supporting polymer matrices have been prepared from NBR/SBR latices. TEM measurement and EDX analysis show evidence that dual-phase structure is constructed in the electrolyte. Ionic conductivity of the electrolyte increases with increase of lithium salt solution content. Maximum ionic conductivity of 2.2 x 10(-3) S/cm is obtained at the lithium salt solution content of 60.5% (w/w). The electrolyte retains rubber-like film with good mechanical strength despite the presence of the solution.