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4407803 
Journal Article 
Effect of BF3 Inclusion on Poly(POEM-co-AMPSLi) Single-ion Polymer Electrolytes 
Choi, DaIn; Ryu, SW 
2015 
39 
4 
621-626 
WOS:000358818500014 
Single-ion conducting poly(POEM-co-AMPSLi)s were prepared by a radical polymerization of various amount of poly(ethylene glycol) methyl ether methacryate (POEM) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) followed by a titration with Li2CO3. The electrochemical properties and an effect of BF(3)inclusion on the ionic conductivity and thermal properties were investigated. The obtained polymer electrolytes showed electrochemical stability up-to 6 V and 0.93 of lithium ion transference number suggested that the electrolytes are one of the single-ion conductors but only 3.2x10(-7) S/cm of room temperature ionic conductivity was observed. However, there was a dramatic increase of room temperature ionic conductivity after inclusion of BF3 and 1.3x10(-5) S/cm was observed in polymer electrolyte with [EO]:[Li] ratio of 27:1. Furthermore, the inclusion of BF3 decreases the crystalline melting temperature of polymer electrolytes by increasing the coordination between lithium ion and ethylene oxide unit in the polymer matrix. 
polymer electrolytes; single-ion conductor; Lewis acid; ionic conductivity; melting temperature