Functionalized SiO2 in poly(ethylene oxide)-based polymer electrolytes

被引：95

作者：

Liu, Y ^{[1
]}

Lee, JY ^{[1
]}

Hong, L ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Environm Chem & Engn, Singapore 119260, Singapore

来源：

JOURNAL OF POWER SOURCES | 2002年 / 109卷 / 02期

关键词：

battery; composite polymer electrolyte; polyethylene oxide; silica; ceramic filler;

D O I：

10.1016/S0378-7753(02)00167-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, composite polymer electrolytes which consist of polyethylene oxide (PEO) as the polymer matrix, lithium tetrafluoroborate (LiBF4) as the lithium salt and functionalized SiO2 as the inert ceramic filler are prepared by a film-casting method. SiO2 is functionalized by 2-[methoxy(polyethylenoxy)-propyl] trimethoxy silane. X-ray photoelectron spectroscopy (XPS) and thermal gravimetric analysis (TGA) are used to characterize the functionalized SiO2, Compared with untreated SiO2 as the ceramic filler there is noticeable improvement in ionic conductivity, stability of the Li/polymer electrolyte interface, and the mechanical properties when functionalized SiO2 is used. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：507 / 514

页数：8

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