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Choi, Nam-Soon
Energy Materials Lab
Research Interests
  • Rechargeable lithium battery, electrolytes for next generation Mg and Na battery

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A comparative study of coordination between host polymers and Li+ ions in UV-cured gel polymer electrolytes

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Title
A comparative study of coordination between host polymers and Li+ ions in UV-cured gel polymer electrolytes
Author
Choi, Nam-SoonPark, Jung-Ki
Keywords
1,6-Hexanediol diacrylate; FT-IR; Gel polymer electrolyte; Ion-dipole interaction; Tri(ethylene glycol) diacrylate; UV-curing
Issue Date
2009-08
Publisher
ELSEVIER SCIENCE BV
Citation
SOLID STATE IONICS, v.180, no.20-22, pp.1204 - 1208
Abstract
Crosslinked gel polymer electrolytes are prepared via free radical photo-polymerization of 1,6-hexanediol diacrylate (HDDA) or tri(ethylene glycol) diacrylate (TEGDA) with 1 M LiClO4 dissolved in a solvent mixture of ethylene carbonate (EC) and propylene carbonate (PC). TEGDA-based gel polymer electrolytes containing a polar moiety of ethylene oxide exhibit relatively high ionic conductivities over a temperature range from - 15 to 65 °C in comparison to those based on HDDA. The coordination structure between polar moieties of a polymer backbone and Li+ ions is examined using a Fourier transform infrared (FT-IR) spectroscopy. The results of FT-IR analyses manifest that the C{double bond, long}O and C{single bond}O{single bond}C groups of TEGDA-based polymer matrix form the complex with Li+ ions.
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DOI
10.1016/j.ssi.2009.06.005
ISSN
0167-2738
Appears in Collections:
ECHE_Journal Papers
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