UV cross-linked, lithium-conducting ternary polymer electrolytes containing ionic liquids

G.T. Kim, G.B. Appetecchi, M. Carewska, M. Joost, A. Balducci, M. Winter, S. Passerini

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In this manuscript is reported an attempt to prepare high ionic conductivity lithium polymer electrolytes by UV cross-linking the poly(ethyleneoxide) (briefly called PEO) polymer matrix in presence of the plasticizing lithium salt, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and an ionic liquid of the pyrrolidinium family (N-alkyl-N-methylpyrrolidinium TFSI) having a common anion with the lithium salt. It is demonstrated that polymer electrolytes with room temperature ionic conductivities of nearly 10-3 S cm-1 could be obtained as a result of the reduced crystallinity of the ternary electrolytes. The results clearly indicate that the cross-linked ternary electrolyte shows superior mechanical properties with respect to the non-cross-linked electrolytes and higher conductivities with respect to polymer electrolytes containing none or less ionic liquid. © 2009 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)6130 - 6137
Number of pages8
JournalJournal of Power Sources
Issue number18
Publication statusPublished - 15 Sep 2010


All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Kim, G. T., Appetecchi, G. B., Carewska, M., Joost, M., Balducci, A., Winter, M., & Passerini, S. (2010). UV cross-linked, lithium-conducting ternary polymer electrolytes containing ionic liquids. Journal of Power Sources, 195(18), 6130 - 6137. https://doi.org/10.1016/j.jpowsour.2009.10.079