DOI QR코드

DOI QR Code

Ethylene Oxide기를 갖는 Acrylate계 Gel Polymer Electrolyte의 전기화학적 특성에 관한 연구

A Study on Electrochemical Properties of Acrylate-based Gel Polymer Electrolyte with Ethylene Oxide Group

  • 김현수 (한국전기연구원 전지연구그룹) ;
  • 신정한 (한국전기연구원 전지연구그) ;
  • 문성인 (한국전기연구원 전지연구그) ;
  • 오대희 (부경대학교 공업화학과)
  • 발행 : 2004.06.01

초록

The gel polymer electrolyte was prepared by radical polymerization using tetra(ethylene glycol) diacrylate and tri(ethylene glycol) dimethacrylate to investigate affect of the number of ethylene oxide. The gel polymer electrolyte showed good electrochemical stability up to 4.5 V vs. Li/Li and high ionic conductivity at various temperatures. The lithium-ion polymer batteries with the gel polymer electrolyte, tetra(ethylene glycol) diacrylate- and tri(ethylene glycol) dimethacrylate-based, also represented good electrochemical performances such as rate capability, low-temperature performances and cycleability. However, the cell with tri(ethylene glycol) dimethacrylate, which has three ethylene oxide, showed better electrochemical performance.

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