PEG crosslinked poly(vinylbenzene boronic acid) polymer electrolytes for Li-ion batteries

被引：17

作者：

Celik, Sevim Unugur ^{[1
]}

Bozkurt, Ayhan ^{[1
]}

机构：

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

来源：

CURRENT APPLIED PHYSICS | 2013年 / 13卷 / 08期

关键词：

Poly(4-vinylbenzeneboronic acid); Polymer electrolyte; Li-ion conductivity; PEG; RESEARCH-AND-DEVELOPMENT; CONDUCTIVITY; COMPLEXES;

D O I：

10.1016/j.cap.2013.06.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Poly(4-vinylbenzeneboronic acid), PVBBA was synthesized via free-radical polymerization of 4-vinylbenzeneboronic acid (4-VBBA) and followed by crosslinking with polyethylene glycol (PEG) with different molecular weights to produce boron containing crosslinked polymers. Prior to crosslinking, the materials were doped with CF3SO3Li at several stoichiometric ratios to get PVBBAPEGX-Y where X is the molecular weight of PEG and Y is the EO/Li ratio. The materials were characterized by using Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC). The ionic conductivity of these novel crosslinked electrolytes was 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. PVBBAPEG200-10 illustrated a satisfactory ionic conductivity of 3.1 x 10(-5) S/cm at 20 degrees C and 1.8 x 10(-3) S/cm at 100 degrees C. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：1668 / 1673

页数：6

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