期刊
NEW JOURNAL OF CHEMISTRY
卷 35, 期 3, 页码 614-621出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0nj00717j
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资金
- Shanghai Science and Technology [10ZR1416100]
- Shanghai-Applied Materials Collaborative Research [09520714400]
Inorganic-organic hybrid porous poly(cyclotriphosphazene-co-4,4'-sulfonyldiphenol) (PZS) nanotubes with active hydroxyl groups are incorporated in polyethylene oxide (PEO), using LiClO4 as doping salts, to form a novel composite polymer electrolyte (CPE). The composite solid polymer electrolytes are characterized using differential scanning calorimetry (DSC), atomic force microscopy (AFM), scanning electron microscopy (SEM) and electrical impedance spectroscopy. The SEM photographs indicate that the electrolytes are miscible and homogeneous. Incorporation of active PZS nanotubes in PEO-LiClO4 polymer electrolytes facilitates salt dissociation and enhances ionic conductivity. Maximum ionic conductivity values of 4.5 x 10(-5) S cm(-1) at ambient temperature and 1.56 x 10(-3) S cm(-1) at 80 degrees C are obtained when the content of active PZS nanotubes is 10 wt% and the lithium ion transference number is 0.39. The experiment results show that the inorganic-organic hybrid polyphosphazene nanotubes with active hydroxyl groups can enhance the ionic conductivity and increase the lithium ion transference number of PEO-based electrolytes more effectively comparing with traditional ceramic fillers such as SiO2.
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