Preparation and characterization of novel polyether/poly(vinylidene fluoride-hexa fluoroproyiene)-based solid polymer electrolytes

Ting Feng*, Feng Wu, Chuan Wu, Ying Bai, Lin Ye, Zeng Guo Feng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A series of Composite polymer electrolytes were prepared by blending a novel hyperbranched polyether (PHEMO) with different amount of poly(vinylidene fluoride-hexa fluoroproylene) (PVDF-HFP), The thermal stabilities and ionic conductivities of the as-prepared electrolytes were investigated by means of differential scanning calorimetric (DSC), thermogravimetric analysis (TGA) and alternating current impendence. The test results displayed that both the adding amount of PVDF-HFP and testing temperature had effect on ionic conductivities of the polymer electrolytes. When the mass ratio of PHEMO to PVDF-HFP was 2:1, the composites possessed excellent electrochemical and thermal stability, and the ion conductivity was 3.04 × 10-5 S/cm at room temperature. TGA results showed that the composites had better thermal stability and they were benefit for the safety of lithium ion batteries.

Original languageEnglish
Pages (from-to)40-43
Number of pages4
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume27
Issue numberSUPPL. 2
Publication statusPublished - Dec 2007

Keywords

  • Hyperbranched polyether
  • Ionic conductivity
  • Lithium-ion battery
  • PVDF-HFP
  • Polymer electrolyte

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