Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries

Mia Sterby, Rikard Emanuelsson, Xiao Huang, Adolf Gogoll, Maria Strømme, Martin Sjödin*

*この研究の対応する著者

研究成果: Article査読

42 被引用数 (Scopus)

抄録

Lithium-ion technologies show great promise to meet the demands that the transition towards renewable energy sources and the electrification of the transport sector put forward. However, concerns regarding lithium-ion batteries, including limited material resources, high energy consumption during production, and flammable electrolytes, necessitate research on alternative technologies for electrochemical energy storage. Organic materials derived from abundant building blocks and with tunable properties, together with water based electrolytes, could provide safe, inexpensive and sustainable alternatives. In this study, two conducting redox polymers based on poly(3,4-ethylenedioxythiophene) (PEDOT) and a hydroquinone pendant group have been synthesized and characterized in an acidic aqueous electrolyte. The polymers were characterized with regards to kinetics, pH dependence, and mass changes during oxidation and reduction, as well as their conductance. Both polymers show redox matching, i.e. the quinone redox reaction occurs within the potential region where the polymer is conducting, and fast redox conversion that involves proton cycling during pendant group redox conversion. These properties make the presented materials promising candidates as electrode materials for water based all-organic batteries.

本文言語English
ページ(範囲)356-364
ページ数9
ジャーナルElectrochimica Acta
235
DOI
出版ステータスPublished - 2017 5月 1
外部発表はい

ASJC Scopus subject areas

  • 化学工学(全般)
  • 電気化学

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