A PROXYL-Type Norbornene Polymer for High-Voltage Cathodes in Lithium Batteries

Kan Hatakeyama-Sato, Satoshi Matsumoto, Hirofumi Takami, Tomomi Nagatsuka, Kenichi Oyaizu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A newly designed radical polymer with a polynorbornene backbone and unsaturated derivative of tetramethylpyrrolidine 1-oxyl (PROXYL) as pendant groups displays reversible redox at 3.75 V (vs Li/Li+). The robust polymer design enables the high voltage while maintaining a promising cyclability (over 1000 cycles). The polymer is also beneficial as an additive to the regular lithium iron phosphate electrodes, where the quickly responding organic material facilitates the charging reactions catalytically.

Original languageEnglish
Article number2100374
JournalMacromolecular rapid communications
Volume42
Issue number19
DOIs
Publication statusPublished - 2021 Oct

Keywords

  • lithium batteries
  • radical polymers
  • redox-active polymers
  • stable nitroxides

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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