期刊
SOLID STATE IONICS
卷 164, 期 1-2, 页码 81-86出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2003.08.004
关键词
polymer electrolytes; ionic conductivity; PEO; SiO2
Composite polymer electrolytes based on poly(ethylene oxide) (PEO) were prepared by using LiClO4 as doping salts and silane-modified SiO2 as filler. Electrochemical, thermal and mechanical properties of PEO-based polymer electrolytes mixed with modified SiO2 were studied. Differential scanning calorimetry (DSC) results showed that in the presence of the filler, there is a decrease in the glass transition temperature of the electrolyte, whereas, on the other hand, enhances the crystallinity of the sample. Compared with unmodified SiO2 as inert filler, the addition of silane-modified SiO2 increases the ionic conductivity of the (PEO)(16)LiClO4 more noticeably, and leads to remarkable enhancement in the mechanical properties of polymer electrolytes. (C) 2003 Elsevier B.V. All rights reserved.
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