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

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

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)356-364
Number of pages9
JournalElectrochimica Acta
Volume235
DOIs
Publication statusPublished - 2017 May 1
Externally publishedYes

Fingerprint

Secondary batteries
Polymers
Electrolytes
Water
Redox reactions
Conducting polymers
Lithium
Energy storage
Protons
Energy utilization
Ions
Oxidation
Electrodes
Kinetics
Oxidation-Reduction
benzoquinone
poly(3,4-ethylene dioxythiophene)

Keywords

  • Conducting Redox Polymer
  • Organic Batteries
  • Proton Batteries
  • Quinone
  • Redox Matching

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries. / Sterby, Mia; Emanuelsson, Rikard; Huang, Xiao; Gogoll, Adolf; Strømme, Maria; Sjödin, Martin.

In: Electrochimica Acta, Vol. 235, 01.05.2017, p. 356-364.

Research output: Contribution to journalArticle

Sterby, M, Emanuelsson, R, Huang, X, Gogoll, A, Strømme, M & Sjödin, M 2017, 'Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries', Electrochimica Acta, vol. 235, pp. 356-364. https://doi.org/10.1016/j.electacta.2017.03.068
Sterby, Mia ; Emanuelsson, Rikard ; Huang, Xiao ; Gogoll, Adolf ; Strømme, Maria ; Sjödin, Martin. / Characterization of PEDOT-Quinone Conducting Redox Polymers for Water Based Secondary Batteries. In: Electrochimica Acta. 2017 ; Vol. 235. pp. 356-364.
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