Electrospun montmorillonite modified poly(vinylidene fluoride) nanocomposite separators for lithium-ion batteries

被引：58
作者：
Fang, Changjiang [1 ]
Yang, Shuli [1 ]
Zhao, Xinfei [1 ]
Du, Pingfan [1 ,2 ]
Xiong, Jie [1 ,2 ]
机构：
[1] Zhejiang Sci Tech Univ, Coll Mat & Text, Hangzhou 310018, Peoples R China
[2] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2016年 / 79卷
基金：
中国国家自然科学基金;
关键词：
Composites; Nanostructures; Thin films; Electrochemical properties; Energy storage; SOLID POLYMER ELECTROLYTE; COMPOSITE SEPARATORS; NONWOVEN SEPARATORS; PVDF; MEMBRANES;
D O I：
10.1016/j.materresbull.2016.02.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Composite separators of poly(vinylidene fluoride) (PVDF) with different contents of montmorillonite (MMT) for Li-ion batteries have been fabricated by electrospinning. The morphology, function group, crystallinity, and mechanical properties of membranes were investigated by scanning electron microscope (SEM), Fourier Transform infrared spectra (FT-IR), differential scanning calorimetry (DSC), and tensile test, respectively. Interlayer spacing of MMT in polymer was characterized by X-ray diffraction (XRD). In addition, the results of electrochemical measurements suggest that PVDF/MMT-5% composite membrane has maximum ionic conductivity of 4.2 mS cm(-1), minimum interfacial resistance of 97 Omega, and excellent electrochemical stability. The cell comprising PVDF/MMT-5% composite membrane shows higher capacity and more stable cycle performance than the one using commercial Celgard PP membrane. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：1 / 7
页数：7
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