Nitroxide-substituted polyether as a new material for batteries

Takeo Suga, Kentaro Yoshimura, Hiroyuki Nishide

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Nitroxide-substituted polyether was synthesized as a cathode-active material for a secondary battery. Anionic ring-opening polymerization of a TEMPO-bearing glycidyl ether was carried out under bulk conditions to yield the corresponding polymer with the molecular weight of >104. The obtained polymer was insoluble, but slightly swollen in the electrolyte solution (ethylene carbonate/propylene carbonate). The test cell fabricated with a carbon composite cathode of this radical polymer displayed a plateau voltage at 3.5 V vs. Li/Li+. The cell performance was maintained even with a higher amount of the radical polymer loaded in the composite electrode, which could be ascribed to the flexible and rubbery polyether backbone and its higher compatibility with the electrolyte solution.

Original languageEnglish
Pages (from-to)416-422
Number of pages7
JournalMacromolecular Symposia
Volume245-246
DOIs
Publication statusPublished - 2006 Dec 1

Keywords

  • Anionic ring-opening polymerization
  • Electrode-active material
  • Nitroxide
  • Polyether
  • Radical polymer

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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