Quadruply Fused Aromatic Heterocycles toward 4 V-Class Robust Organic Cathode-Active Materials

Kan Hatakeyama-Sato*, Choitsu Go, Tomoki Akahane, Takahiro Kaseyama, Takuji Yoshimoto, Kenichi Oyaizu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Quadruply fused aromatic heterocycles are examined as 4 V-class organic cathode-active materials. A newly synthesized dimethylfluoflavin-substituted polymer displays reversible charge/discharge at high potentials of 3.5 and 4.1 V (vs. Li/Li+) as a cathode-active material for organic secondary batteries. The robust redox-active heterocycles enable the long cycle-life (>1000) while maintaining the high potential over 4 V. The linear polymer backbone and radical spin configuration in the heterocycles are the keys to enhancing the voltages and the cycle life.

Original languageEnglish
Article numbere202200178
JournalBatteries and Supercaps
Volume5
Issue number8
DOIs
Publication statusPublished - 2022 Aug

Keywords

  • high-voltage organic cathodes
  • lithium battery
  • organic cathode-active material

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Electrochemistry

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