Ion conduction behavior in chemically crosslinked hybrid ionogel-effect of free dangling oligoethyleneoxides
- Ion conduction behavior in chemically crosslinked hybrid ionogel-effect of free dangling oligoethyleneoxides
- 황승상; 홍순만; 구종민; 알버트 이성수; 이진홍; 이종찬
- Issue Date
- RSC advances
- VOL 5, NO 114, 94241-94247
- A series of PEO-functionalized, ladder-like structured polysilsesquioxane copolymers were synthesized and utilized for the fabrication of PEGylated hybrid ionogels through chemical crosslinking of the ionic liquid, 1 M LiTFSI in N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide. Through systematic variance of the copolymer concentration of methacryloxypropyl- and PEG groups, we were able to demonstrate enhanced ionic conductivity and lithium ion dissociation as the PEO content increased. Through an in-depth spectroscopic investigation of the ion conduction behavior of these PEGylated hybrid ionogels and comparison with hybrid ionogels without PEG groups, we were able to demonstrate how the enhancement in lithium ion battery performance for PEGylated hybrid iongels could be achieved at identical crosslinker concentrations.
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