In situ ceramic fillers of electrospun thermoplastic polyurethane/poly(vinylidene fluoride) based gel polymer electrolytes for Li-ion batteries

被引：105

作者：

Wu, Na ^{[1
]}

Cao, Qi ^{[1
]}

Wang, Xianyou ^{[1
]}

Li, Sheng ^{[1
]}

Li, Xiaoyun ^{[1
]}

Deng, Huayang ^{[1
]}

机构：

[1] Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat Ministe, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 22期

关键词：

Gel polymer electrolyte; Electrospinning; In situ ceramic fillers; Thermoplastic polyurethane; Poly(vinylidene fluoride); COMPOSITE; MEMBRANE; CONDUCTIVITY; PERFORMANCE; SEPARATOR;

D O I：

10.1016/j.jpowsour.2011.07.079

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：

Gel polymer electrolyte films based on thermoplastic polyurethane (TPU)/poly(vinylidene fluoride) (PVdF) with and without in situ ceramic fillers (SiO2 and TiO2) are prepared by electrospinning 9 wt% polymer solution at room temperature. The electrospun TPU-PVdF blending membrane with 3% in situ TiO2 shows a highest ionic conductivity of 4.8 x 10(-3) S cm(-1) with electrochemical stability up to 5.4V versus Li+/Li at room temperature and has a high tensile strength (8.7 +/- 0.3 MPa) and % elongation at break (110.3 +/- 0.2). With the superior electrochemical and mechanical performance, it is very suitable for application in polymer lithium ion batteries. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：9751 / 9756

页数：6

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