Relationship between swelling ratio and structure of three dimensional acrylic polymers in gel electrolytes

Norio Iwayasu, Shin Nishimura

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The safety of lithium ion batteries can be improved by using ion conductive gels as electrolyte. For this purpose, gel electrolytes are required to exhibit high ionic conductivity and paired with a low temperature dependence. In this study, several matrix polymers for gel electrolytes with different degrees of polymerization between crosslinks and side chains were prepared. Their swelling ratio and ionic conductivity were measured. The matrix polymer which was made from ethylene glycol dimethacrylate as multifunctional monomer and vinyl acetate as monofunctional monomer showed a high swelling ratio. Ionic conductivity of the gel electrolyte was 4.9 mS/cm at 20°C and its activation energy was 14.3 kJ/mol. Our results suggest that the use of block copolymerization type monomers that show a weak interaction between polymers and lithium ions are effective.

    Original languageEnglish
    Pages (from-to)350-355
    Number of pages6
    JournalKOBUNSHI RONBUNSHU
    Volume67
    Issue number6
    DOIs
    Publication statusPublished - Jun 2010

    All Science Journal Classification (ASJC) codes

    • Chemical Engineering (miscellaneous)
    • Materials Science (miscellaneous)
    • Environmental Science(all)
    • Polymers and Plastics

    Fingerprint

    Dive into the research topics of 'Relationship between swelling ratio and structure of three dimensional acrylic polymers in gel electrolytes'. Together they form a unique fingerprint.

    Cite this