PVDF-HFP-based porous polymer electrolyte membranes for lithium-ion batteries

被引：294

作者：

Miao, Ruiying ^{[1
]}

Liu, Bowen ^{[1
]}

Zhu, Zhongzheng ^{[1
]}

Liu, Yun ^{[1
]}

Li, Jianling ^{[1
]}

Wang, Xindong ^{[1
]}

Li, Qingfeng ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China

[2] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark

来源：

JOURNAL OF POWER SOURCES | 2008年 / 184卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Electrolyte; Lithium-ion battery; Porous; Polymer membrane;

D O I：

10.1016/j.jpowsour.2008.03.045

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 [物理化学]; 081704 [应用化学];

摘要：

As a potential electrolyte for lithium-ion batteries, a porous polymer electrolyte membrane based on poly(vinylidenefluoride-hexafluoropropylene) (PVDF-HFP) was prepared by a phase inversion method. The casting solution, effects of the solvent and non-solvent and addition of micron scale TiO2 particles were investigated. The membranes were characterized by SEM, XRD, AC impedance, and charge/discharge tests. By using acetone as the solvent and water as the non-solvent, the prepared membranes showed good ability to absorb and retain the lithium ion containing electrolyte. Addition of micron TiO2 particles to the polymer electrolyte was found to enhance the tensile strength, electrolyte uptake, ion conductivity and the electrolyte/electrode interfacial stability of the membrane. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：420 / 426

页数：7

共 25 条

[1]

Ionic conductivity, DSC and self diffusion coefficients of lithium, anion, polymer, and solvent of polymer gel electrolytes: the structure of the gels and the diffusion mechanism of the ions [J].