Synthesis and characterization of mixing soft-segmented waterborne polyurethane polymer electrolyte with room temperature ionic liquid

Yue Jiao Li, Feng Wu, Ren Jie Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Composite polymer electrolytes based on mixing soft-segment waterborne polyurethane (WPU) and 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide (BMImTFSI) have been prepared and characterized. The addition of BMImTFSI results in an increase of the ionic conductivity. At high BMImTFSI concentration (BMImTFSI/WPU = 3 in weight ratio), the ionic conductivity reaches 4.27 × 10-3 S/cm at 30 °C. These composite polymer electrolytes exhibit good thermal and electrochemical stability, which are high enough to be applied in lithium batteries.

Original languageEnglish
Pages (from-to)519-522
Number of pages4
JournalChinese Chemical Letters
Volume20
Issue number5
DOIs
Publication statusPublished - May 2009
Externally publishedYes

Keywords

  • 1-Butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
  • Composite polymer electrolytes
  • Ionic conductivity
  • Ionic liquid
  • Waterborne polyurethane

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