Ion conduction in polymerized ionic liquids: The effect of anion type

Yuesheng Ye, David Salas-De La Cruz, Karen I. Winey, Yossef A. Elabd

Research output: Contribution to journalConference article

Abstract

Solid-state polymer electrolytes with high ionic conductivities are of great interest for energy conversion and storage devices (e.g., fuel cells, batteries), in part, because they overcome shortcomings of liquid electrolytes (e.g., leakage, flammability, toxicity, stability). Recently, polymer electrolytes that contain ionic liquids (ILs) have attracted remarkable interest due to negligible vapor pressure, nonflammability, high ionic conductivity, a wide electrochemical window, and good chemical and thermal stability. In this study, an imidazolium-based IL monomer, 1-[(2-methacryloyloxy)ethyl]-3-butylimidazolium bromide (MEBIm-Br), was synthesized and subsequently polymerized using conventional free radical polymerization. To examine the effect of anion type on polymer properties and ion conduction, both the monomer and polymer, poly(MEBIm-Br), were exchanged with other anions such as tetrafluoroborate (BF4), bis(trifluoromethanesulfonyl) imide (TFSI), trifluoromethanesulfonate (Tf), and hexafluorophosphate (PF6), where glass transitions, ion conduction, and structure were investigated in these systems as a function of anion type.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
Publication statusPublished - Dec 1 2010
Externally publishedYes
Event239th ACS National Meeting and Exposition - San Francisco, CA, United States
Duration: Mar 21 2010Mar 25 2010

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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