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
