A solid polymer electrolyte for aluminum ion conduction

Tianyi Yao, Francielli S. Genier, Saeid Biria, Ian Dean Hosein

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We report on the synthesis and characterization of a solid polymer electrolyte for aluminum ion conduction. The solid polymer electrolyte is produced via the copolymerization of a low molecular weight polytetrahydrofuran and a cycloaliphatic epoxy. The crosslinked copolymer is swollen in THF solutions of different concentrations of aluminum nitrate as the aluminum ion source. The conductivity as a function of concentration is measured via AC impedance spectroscopy over a temperature range of 20–110 °C. We attain conductivities that increase with salt loading, reaching a value of 2.86 × 10−5 S·cm−1. Thermogravimetric analysis shows the electrolytes are stable up to 150 °C. Raman spectroscopy reveals complete dissociation of the aluminum nitrate salt in the electrolyte over the concentration range explored. This study establishes a polymer system and synthetic route towards solid polymer electrolytes for aluminum ion conduction, for the development of all solid-state aluminum ion batteries.

Original languageEnglish (US)
Pages (from-to)529-531
Number of pages3
JournalResults in Physics
Volume10
DOIs
StatePublished - Sep 1 2018

Keywords

  • Aluminum
  • Electrolyte
  • Ion conduction
  • Polymers

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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