Preparation and characterization of a rechargeable battery based on poly-(3,4-ethylenedioxythiophene) and aluminum in ionic liquids

T. Schoetz, M. Ueda, A. Bund, C. Ponce de Leon

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a feasibility study of a non-aqueous rechargeable battery based on aluminum and poly-(3,4-ethylenedioxythiophene) conductive polymer in a chloroaluminate ionic liquid. The polymer was electrodeposited on a vitreous carbon working electrode in a chloride aqueous solution and the structure was analyzed by scanning electron microscopy. The doping/de-doping mechanism of chloride ions into the polymer structure was studied using a quartz crystal microbalance and cyclic voltammetry. The deposition/dissolution of the aluminum negative electrode were investigated by electrochemical and microscopic methods. Performance data were obtained with a laboratory-scale aluminum-conductive polymer battery at constant current showing an average cell discharge voltage of 1 V and specific energies of at least 84 Wh kg−1 referred to the mass of the polymer and aluminum. The system is novel and the paper outlines further research to improve the cell performance.

Original languageEnglish (US)
Pages (from-to)3237-3246
Number of pages10
JournalJournal of Solid State Electrochemistry
Volume21
Issue number11
DOIs
StatePublished - Nov 1 2017
Externally publishedYes

Keywords

  • Aluminum
  • Lewis acidic ionic liquid
  • PEDOT-aluminum battery
  • Poly-(3,4-ethylenedioxythiophene) (PEDOT)

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Chemistry

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