한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

가소제 혼합비에 따른 PAN/PVDF계 고분자 전해질의 이온 전도 특성

Conductivity of PAN/PVDF based Polymer Electrolyte as a Function of Plasticizer Mixed Ratio

  • 이재안 (전남대학교 전기공학과) ;
  • 김종욱 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과)
  • Lee, Jae-An (Dept. of Electrical Eng., Chonnam National Univ) ;
  • Kim, Jong-Uk (Dept. of Electrical Eng., Chonnam National Univ) ;
  • Gu, Hal-Bon (Dept. of Electrical Eng., Chonnam National Univ)
  • 발행 : 2000.05.13
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초록

The purpose of this study is to research and develop solid polymer electrolyte(SPE) for Li polymer battery. This paper describes temperature dependence of conductivity, impedance spectroscopy, electrochemical properties of PAN/PVDF electrolytes as a function of a mixed ratio. PAN/PVDF based polymer electrolyte films were prepared by thermal gellification method of preweighed PAN/PVDF, plasticizer and Li salt. By adding PVDF and as a function of plasticizer mixed ratio to PAN-LiClO4 electrolyte, its conductivity was higher than that of PAN-$LiClO4_4$ electrolyte. The conductivity of PAN/PVDF electrolytes was $10^{-3}S/cm$. $10PAN10PVDFLiClO_4PC_5EC_5$ electrolyte shows the better conductivity of the others. Steady state current method and ac impedance used for the determination of transference numbers in PAN/PVDF electrolyte film. The transference number of $10PAN10PVDFLiClO_4PC_5EC_5$ electrolyte is 0.45.

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