Synthesis and characterization of a highly conductive organic-inorganic hybrid polymer electrolyte based on amine terminated triblock polyethers and its application in electrochromic devices

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/101098

Title:	Synthesis and characterization of a highly conductive organic-inorganic hybrid polymer electrolyte based on amine terminated triblock polyethers and its application in electrochromic devices
Authors:	高憲明;Saikia, Diganta;Pan, Yu-Chi;Wu, Cheng-Gang;Fang, Jason;Tsai, Li-Duan;Kao, Hsien-Ming
Contributors:	理學院化學學系
Keywords:	Devices;Electrochromism;Electrolytes;Ethers;Ionic conductivity;Lithium;Sol gel process;Tungsten oxides
Date:	2014-01-14
Issue Date:	2026-04-21 14:23:32 (UTC+8)
Publisher:	Royal Society of Chemistry
Abstract:	摘要： A new highly ion conductive organic-inorganic hybrid electrolyte based on the reaction of triblock co-polymer poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol) bis(2-aminopropyl ether) (ED2003) with 3-(glycidyloxypropyl)trimethoxysilane (GLYMO) and followed by co-condensation with 2-methoxy(polyethyleneoxy)propyl trimethoxysilane (MPEOPS) in the presence of LiClO sub(4) was synthesized by a sol-gel process and characterized by a variety of experimental techniques. The maximum ionic conductivities of 1.1 10 super(-4) S cm super(-1) at 30 degree C and 6.0 10 super(-4) S cm super(-1) at 80 degree C were obtained for the hybrid electrolyte with a [O]/[Li] ratio of 24. The conductivity mechanism changed from Arrhenius at lower temperatures to Vogel-Tamman-Fulcher (VTF) behavior at higher temperatures. The results of solid-state NMR confirmed the structural framework of the hybrids, and provided a microscopic view of the effects of salt concentrations on the dynamic behavior of the polymer chains. The electrochemical stability window was found to be around 3.7-4.5 V, which is sufficient for electrochemical device applications. Preliminary tests performed with prototype electrochromic devices (ECDs) comprising the hybrid electrolyte with various [O]/[Li] ratios and mesoporous WO sub(3) as the cathode layer are extremely encouraging. The best performance device exhibits an optical density change of 0.58, coloration efficiency of 375 cm super(2) C super(-1) and a good cycle life with the hybrid electrolyte with a [O]/[Li] ratio of 24. The present hybrid electrolyte offers a remarkable ionic conductivity and coloration efficiency in the solid state than previously reported organic-inorganic hybrid electrolytes. 出版日期： 2014-01-01 出處： Journal of materials chemistry. C, Materials for optical and electronic devices, 2014-01, Vol.2 (2), p.331-343 資源來源： Royal Society of Chemistry 識別號： ISSN: 2050-7526 識別號： EISSN: 2050-7534 識別號： DOI: 10.1039/C3TC31555J
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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