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Electrochemical Performances of Lithium-ion Polymer Battery with Polyoxyalkylene Glycol Acrylate-based Gel Polymer Electrolyte

Polyoxyalkylene Glycol Acrylate기 Gel Polymer Electrolyte를 적용한 리튬이온폴리머전지의 전기화학적 특성

  • 김현수 (한국전기연구원 전지연구그룹) ;
  • 김성일 (한국전기연구원 전지연구그룹) ;
  • 나성환 (한국전기연구원 전지연구그룹) ;
  • 문성인 (한국전기연구원 전지연구그룹)
  • Published : 2005.02.01

Abstract

In this work, a gel polymer electrolyte (GPE) was prepared using polyoxyalkylene glycol acrylate (POAGA) as a macromonomer LiCoO$_2$/GPE/graphite cells were prepared and their electrochemical properties were evaluated at various current densities and temperatures. The ionic conductivity of the GPE was more than 6.2${\times}$10$^{-3}$ S$.$$cm^{-1}$ / at room temperature. The GPE had good electrochemical stability up to 4.5 V vs. Li/Li$^{+}$. POAGA-based cells were showed good electrochemical performances such as rate capability, low-temperature performance, and cycleability. The cells, also, passed a safety test such as the overcharge and nail-penetration test.t.

Keywords

References

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