Electropolymerization of microencapsulated 3-hexylthioph for lithium-ion battery applications

M. Baginska, J. A. Kaitz, A. R. Jones, B. R. Long, A. A. Gewirth, N. R. Sottos, J. S. Moore, S. R. White

Research output: Contribution to journalArticlepeer-review


The conductive polymer precursor, 3-hexylthiophene (3-HT), is successfully encapsulated in ca. 5 μm polyamide microcapsules by interfacial polymerization. The microcapsules are thermally stable up to 300°C, and electrochemically stable in a Li-ion battery electrolyte. Mechanical rupture of the microcapsules releases the liquid core and electropolymerization of the 3-HT monomer was analyzed using cyclic voltammetry. Scanning electron microscopy and vibrational (Raman) spectroscopy confirm the presence of newly formed poly(3-HT) thin films on model electrode surfaces. Encapsulation of battery additives such as 3-HT in microcapsules that remain latent and stable in the electrolyte until required may lead to enhanced battery performance and extended battery lifetimes.

Original languageEnglish (US)
Pages (from-to)A373-A377
JournalJournal of the Electrochemical Society
Issue number3
StatePublished - 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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