Redox-active radical polymers for organic-based energy-storage devices

Hiroyuki Nishide, Takeo Suga

Research output: Contribution to journalConference articlepeer-review

Abstract

Emerging technologies with plastic-based flexible electronic devices have evoked keen interest in exploring next-generation flexible and printable power sources. We focused on durable, but highly redox-active property of organic radical molecules, and have developed a new class of redox polymers for electrode-active, charge-storage materials in a rechargeable battery. Radical polymers bearing a high density of unpaired electrons in a pendant, non-conjugated fashion on each repeating unit provided a rapid, reversible, and quantitative redox behavior in an electrode form. Careful selection of radicals (TEMPO, galvinoxyl, and nitronylnitroxide, etc.) produced remarkably reversible p- and n-type redox couples, which lead to the totally organic-based rechargeable batteries. The power-rate performance of these cells was excellent (a few seconds full charging/discharging), and organic polymer-based electrodes also allowed the fabrication of a flexible, paper-like, and transparent rechargeable energy-storage device. Microphase-separated radical-containing block copolymers and electrospun radical fibers toward new electronics applications will be also discussed.

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Publication statusPublished - 2011 Dec 1
Event242nd ACS National Meeting and Exposition - Denver, CO, United States
Duration: 2011 Aug 282011 Sep 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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