Inorganic-organic polymer electrolytes based on poly(vinyl alcohol) and borane/Poly(ethylene glycol) monomethyl ether for Li-ion batteries

被引：29

作者：

Aydin, Hamide ^{[1
]}

Senel, Mehmet ^{[1
]}

Erdemi, Hamit ^{[2
]}

Baykal, Abdulhadi ^{[1
]}

Tulu, Metin ^{[1
]}

Ata, Ali ^{[3
]}

Bozkurt, Ayhan ^{[1
]}

机构：

[1] Fatih Univ, Dept Chem, TR-34500 Buyukcekmece Istanbul, Turkey

[2] Yalova Univ, Dept Polymer Engn, TR-77100 Yalova, Turkey

[3] Gebze Inst Technol, Dept Mat Sci & Engn, TR-41400 Gebze, Turkey

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 03期

关键词：

Poly(vinyl alcohol); Poly(ethylene glycol) monomethyl ether (PEGME); Borane-tetrahydrofuran; Polymer electrolytes; Li-ion conductivity; LITHIUM-ION; SOLID ELECTROLYTES; BORATE ESTER; CONDUCTIVITY; COMPLEXES; TRANSPORT; MEMBRANES; PERCHLORATE; BLENDS; LICLO4;

D O I：

10.1016/j.jpowsour.2010.08.020

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 study, poly(vinyl alcohol) (PVA) was modified with poly(ethylene glycol) monomethyl ether (PEGME) using borane-tetrahydrofuran (BH3/THF) complex. Molecular weights of both PVA and PEGME were varied prior to reaction. Boron containing comb-branched copolymers were produced and abbreviated as PVA1PEGMEX and PVA2PEGMEX. Then polymer electrolytes were successfully prepared by doping of the host matrix with CF3SO3Li at several stoichiomeric ratios with respect to EO to Li. The materials were characterized via nuclear magnetic resonance (H-1 NMR and B-11 NMR). Fourier transform infrared spectroscopy (FT-IR). Thermogravimetry (TG) and differential scanning calorimeter (DSC). The ionic conductivity of these novel polymer electrolytes were studied by dielectric-impedance spectroscopy. Li-ion conductivity of these polymer electrolytes depends on the length of the side units as well as the doping ratio. Such electrolytes possess satisfactory ambient temperature ionic conductivity (>10(-4) Scm(-1)). Cyclic voltammetry results illustrated that the electrochemical stability domain extends over 4V. (C) Elsevier B.V. All rights reserved.

引用

页码：1425 / 1432

页数：8

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