A comparative study on the effects of salt and filler on transport and structural properties of organic-inorganic hybrid electrolytes

作者：Hu Tarng Shiang; Hong Peng Kai; Saikia Diganta; Kao Hsien Ming^*; Chen Ming Chou

来源：Ionics, 2014, 20(11): 1561-1571.

DOI：10.1007/s11581-014-1107-2

• Organic-inorganic hybrid electrolyte
• Ionic conductivity
• Differential scanning calorimetry
• Nuclear magnetic resonance

Organic-inorganic hybrid electrolytes based on the reaction of tri-block copolymer poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol) bis(2-aminopropyl ether), poly(ethylene glycol diglycidyl ether, and (3-glycidyloxypropyl)trimethoxysilane doped with LiClO4 and SiO2 nanoparticles were synthesized by a sol-gel process. The structural and dynamic properties of the materials thus obtained were systematically investigated by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, alternate current impedance, and C-13 solid-state NMR measurements. A maximum ionic conductivity of 3.2 x 10(-5) S cm(-1) was obtained at 30 A degrees C for the solid hybrid electrolyte with a [O]/[Li] ratio of 16 and 7 wt% of SiO2 nanoparticles. A Vogel-Tamman-Fulcher-like temperature dependence of ionic conductivity was observed for the hybrid electrolytes, implying that the diffusion of charge carriers was assisted by the segmental motions of the polymer chains.

• 出版日期2014-11
• 单位中央民族大学