화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.18, No.3, 266-270, March, 2010
DOI10.1007/s13233-010-0306-6  Export Citation
Anion receptor based on cyclic siloxanes substituted with trifluoromethane-sulfonylamide for solid polymer electrolytes
Won Sil Lee, Seong Ihl Woo, Dong Wook Kim1, Changjin Lee1, and Yongku Kang1, †
  • Department of Chemical and Biomolecular Engineering & WCU Energy Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea
  • 1Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon, 305-600, Korea
E-mail:
An anion receptor based on cyclic siloxanes substituted with trifluoromethane-sulfonylamide was prepared to enhance the ionic conductivity of the solid polymer electrolytes. The anion receptor contains four anioncomplexing sites at its peripherals and bears a geometry with low steric hindrance, which makes the anions access and bind easily. The anion receptor effectively enhanced the ionic conductivity of the polymer electrolyte containing LiCl by two orders of magnitude and LiCF3SO3 by one order. The experimental results showed that the anion receptors trap the anions in a one-to-one coordination between the anion-complexing site and anion. The highest ionic conductivity was observed at the lowest activation energy, which was estimated from the VTF plot. The anion receptor was found to be electrochemically stable up to 5 V, which is suitable for a lithium polymer battery.
Keywords:anion receptor;steric hindrance;polymer electrolyte;lithium ion battery
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