Cationic polysulfonium membrane as separator in zinc-air cell

Eniya Listiani Dewi, Kenichi Oyaizu, Hiroyuki Nishide, Eishun Tsuchida

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

A polyelectrolyte containing a sulfonium cation, poly(methylsulfonio-1,4-phenylenethio-1,4-phenylene trifluoromethanesulfonate) (1) was tested as a separator in a zinc-air cell. In comparison with the commercially available separators such as polypropylene, polysulfonium 1 was highly effective to prevent cation permeation from the anode to cathode and effectively increased the capacity six-fold greater than that of polypropylene during discharge. This phenomenon was explained by the ion-exchange process of the membrane 1, which showed an anion-permselectivity toward OH- at low KOH aqueous solution concentrations (<1M).

Original languageEnglish
Pages (from-to)149-152
Number of pages4
JournalJournal of Power Sources
Volume115
Issue number1
DOIs
Publication statusPublished - 2003 Mar 27

Keywords

  • Anion permselectivity
  • Cationic polyelectrolyte
  • Polysulfonium
  • Separator
  • Zinc-air battery

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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