Gel polymer electrolytes prepared with porous membranes based on an acrylonitrile/methyl methacrylate copolymer

Hyo Sik Min, Dong Wan Kang, Doo Yeon Lee, Dong Won Kim

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23 Scopus citations

Abstract

Porous membranes based on acrylonitrile/methyl methacrylate copolymer were prepared by a phase-inversion method. Microstructures of the porous membranes were controlled through the variation of the evaporation drying time before immersion in a nonsolvent bath. Gel polymer electrolytes were prepared from these porous membranes via soaking in an organic electrolyte solution. They encapsulated the electrolyte solution well without solvent leakage and maintained good mechanical properties that allowed the preparation of thin films (∼23 μm). These systems showed acceptable ionic conductivity values (>6.0 × 10-4 S/cm) at room temperature and sufficient electrochemical stability over 4.4 V that allowed applications in lithium-ion polymer batteries.

Original languageEnglish
Pages (from-to)1496-1502
Number of pages7
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume40
Issue number14
DOIs
StatePublished - 2002 Jul 15

Keywords

  • Acrylonitrile/methyl methacrylate copolymer
  • Electrochemistry
  • Emulsion polymerization
  • Gel polymer electrolytes
  • Gelation
  • Ionic conductivity
  • Lithium-ion polymer batteries
  • Porous membrane

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