Room temperature cross-linkable gel polymer electrolytes for lithium ion batteries by in situ cationic polymerization of divinyl ether

Seung Sik Hwang, Chang Gi Cho, Hansu Kim

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We demonstrated room temperature cross-linkable gel polymer electrolytes (GPE) prepared by in situ cationic polymerization of tri(ethylene glycol) divinyl ether (TEGDVE) with LIBF4 that yields protonic acid and Lewis acid as an acidic initiating system by the reaction with water as an impurity in the liquid electrolyte. FTIR analysis reveals that TEGDVE in the liquid electrolyte is successfully polymerized into gel polymer electrolyte. The resulting gel polymer electrolyte showed promising electrochemical properties including ionic conductivity, wide range in working potential and stable cycle performance as a lithium ion conducting medium.

Original languageEnglish
Pages (from-to)916-919
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number7
DOIs
StatePublished - 2010 Jul 1

Fingerprint

Cationic polymerization
Electrolytes
Ethers
Polymers
Gels
Ethylene Glycol
Ethylene glycol
Temperature
Lewis Acids
Acids
Liquids
Ionic conductivity
Electrochemical properties
Lithium
vinyl ether
Lithium-ion batteries
Impurities
Ions
Water

Keywords

  • Cationic polymerization
  • Divinyl ether
  • Gel polymer electrolyte
  • Lithium battery

Cite this

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abstract = "We demonstrated room temperature cross-linkable gel polymer electrolytes (GPE) prepared by in situ cationic polymerization of tri(ethylene glycol) divinyl ether (TEGDVE) with LIBF4 that yields protonic acid and Lewis acid as an acidic initiating system by the reaction with water as an impurity in the liquid electrolyte. FTIR analysis reveals that TEGDVE in the liquid electrolyte is successfully polymerized into gel polymer electrolyte. The resulting gel polymer electrolyte showed promising electrochemical properties including ionic conductivity, wide range in working potential and stable cycle performance as a lithium ion conducting medium.",
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AU - Hwang, Seung Sik

AU - Cho, Chang Gi

AU - Kim, Hansu

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Y1 - 2010/7/1

N2 - We demonstrated room temperature cross-linkable gel polymer electrolytes (GPE) prepared by in situ cationic polymerization of tri(ethylene glycol) divinyl ether (TEGDVE) with LIBF4 that yields protonic acid and Lewis acid as an acidic initiating system by the reaction with water as an impurity in the liquid electrolyte. FTIR analysis reveals that TEGDVE in the liquid electrolyte is successfully polymerized into gel polymer electrolyte. The resulting gel polymer electrolyte showed promising electrochemical properties including ionic conductivity, wide range in working potential and stable cycle performance as a lithium ion conducting medium.

AB - We demonstrated room temperature cross-linkable gel polymer electrolytes (GPE) prepared by in situ cationic polymerization of tri(ethylene glycol) divinyl ether (TEGDVE) with LIBF4 that yields protonic acid and Lewis acid as an acidic initiating system by the reaction with water as an impurity in the liquid electrolyte. FTIR analysis reveals that TEGDVE in the liquid electrolyte is successfully polymerized into gel polymer electrolyte. The resulting gel polymer electrolyte showed promising electrochemical properties including ionic conductivity, wide range in working potential and stable cycle performance as a lithium ion conducting medium.

KW - Cationic polymerization

KW - Divinyl ether

KW - Gel polymer electrolyte

KW - Lithium battery

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