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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50933


    Title: Synthesis and characterization of a new hyperbranched organic-inorganic solid polymer electrolyte with cyanuric chloride as a core element
    Authors: Pan,YC;Saikia,D;Fang,J;Tsai,LD;Fey,GTK;Kao,HM
    Contributors: 化學學系
    Keywords: NUCLEAR-MAGNETIC-RESONANCE;IONIC-CONDUCTIVITY;STATE-NMR;POLY(ETHYLENE OXIDE);LITHIUM BATTERIES;SELF-DIFFUSION;THERMOPLASTIC POLYURETHANE;RELAXATION;COMPLEXES;DYNAMICS
    Date: 2011
    Issue Date: 2012-03-27 18:13:11 (UTC+8)
    Publisher: 國立中央大學
    Abstract: A new hyperbranched organic-inorganic hybrid electrolyte based on the use of 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride, CC) as the coupling core to couple with oligo(oxyalkylene)-amines, followed by condensation with (3-glycidoxypropyl)-trimethoxysilane (GLYMO) and complexed with LiClO(4), has been prepared and characterized. The Vogel-Tamman-Fulcher (VTF) like conductivity behavior is observed in the present organic-inorganic hybrid electrolytes with a maximum ionic conductivity value of 4.4 x 10(-5) S cm(-1) at 30 degrees C. Multinuclear NMR techniques are used to provide a microscopic view for the specific interaction between the polymer chains and LP cations and their dynamic behaviors. The results of 2D (1)H-(13)C wide-line separation (WISE) and (7)Li static line NMR width measurements divulge that the mobility of the (7)Li cations is strongly related to a dynamic environment created by the polymer motion in the amorphous phase. The combined results of conductivity and (7)Li pulse-gradient spin-echo (PGSE) NMR self-diffusion coefficient measurements reveal that the conductivity enhancement at low salt concentrations is mainly caused by the high mobility of the lithium cations. (C) 2011 Elsevier Ltd. All rights reserved.
    Relation: ELECTROCHIMICA ACTA
    Appears in Collections:[化學學系] 期刊論文

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