화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.46, No.1, 170-174, February, 2008
Export Citation
메조포러스 ZnS가 충전된 P(VDF-HPF) 고분자 전해질
P(VDF-HPF)-Based Polymer Electrolyte Filled with Mesoporous ZnS
서영주, 차종호1, 이흔1, †, 하용준, 고정환, 이철행
  • LG화학 기술연구원, 305-380 대전시 유성구 문지동 104-1
  • 1한국과학기술원 생명화학공학과, 305-701 대전시 유성구 구성동 373-1
Young-ju Seo, Jong-Ho Cha1, Huen Lee1, †, Yong-Joon Ha, Jeong Hwan Koh, and Chulhaeng Lee
  • LG Chem. Ltd., 104-1 Moonji-dong, Yuseong-gu, Daejeon 305-380, Korea
  • 1Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea
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초록
리튬염을 포함하는 P(VDF-HFP)계 겔 고분자에 surfactant-assisted templating process로 합성한 메조포러스 ZnS를 충전하여 다양한 ZnS 무게비를 가지는 전해질 필름을 제조하였고 겔 필름의 이온 전도도를 온도에 따라 측정하였다. 그 결과, 대체적으로 ZnS의 함량비가 증가할수록 증가하였다. 특히 20 wt%와 25 wt% ZnS를 포함하는 겔 필름은 상온에서 10-4 Scm-1의 높은 이온 전도도를 보였다. 하지만 20 wt% 이상의 함량비에서는 더 이상 이온 전도도가 증가하지 않았다. 합성된 메조포러스 ZnS와 겔 전해질 필름의 특성은 XRD(x-ray diffractometer), DSC(differential scanning calorimetry), TGA(thermogravimetric analysis), FT-IR(fourier transform-infrared spectrometer), SEM(scanning electron microscopy), TEM(transmission electron microscopy)을 이용하여 분석하였다. 이온 전도도는 교류 임피던스법에 따라서 승온하면서 측정하였다.
ZnS-polymer gel films were prepared with incorporating mesoporous ZnS synthesized by surfactantassisted templating process and poly (vinylidene fluoride)-hexafluoropropylene copolymer (P(VDF-HFP)) in order to observe the variation of ionic conductivities according to the various weight ratios between ZnS and P(VDF-HFP). Ionic conductivities for each gel electrolyte were measured with increasing temperature. As a result, ionic conductivities increased with increasing the amount of ZnS and temperature. In particular, the films with 20 and 25 wt% ZnS were found that they possessed the high ionic conductivity of approximately 10-4 Scm-1 at room temperature. However, above 20 wt% of ZnS, the enhancement of ionic conductivity was not observed. For the characterization of ZnS and the gel electrolyte, XRD (x-ray diffractometer), DSC (differential scanning calorimetry), TGA (thermogravimetric analysis), FT-IR (fourier transform-infrared spectrometer), SEM (scanning electron microscopy) and TEM (transmission electron microscopy) were employed. Ionic conductivities were measured by a.c. impedance method.
Keywords:Mesoporous;ZnS;Filler;Gel Polymer;Electrolyte