Enhanced Performance of Celgard 2400 Separator Modified by Electrospun Poly(vinylidene fluoride-hexafluoropropylene) Nanofibers
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- 英文论文题名：Enhanced Performance of Celgard 2400 Separator Modified by Electrospun Poly(vinylidene fluoride-hexafluoropropylene) Nanofibers
- 论文作者：Yu Jianxiang ; Dongdong Feng
- 英文论文作者：Yu Jianxiang ; Dongdong Feng ; College of Materials Science and Engineering ; Beijing Key Lab of Special Elastomer Composite Materials ; Institute of Petrochemical Technology
- 年：2016
- 作者机构：College of Materials Science and Engineering, Beijing Key Lab of Special Elastomer Composite Materials, Institute of Petrochemical Technology;
- 英文论文关键词：electrospinning ; Lithium ion battery ; separator ; PVDF-HFP
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：英文
- 分类号：TQ340.64;TM912
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：440k
- 原文格式：D
- 会议级别：全国
摘要
The modification method and property of Li-ion batteries Celgard2400 separator were investigated in this work. The surface of Celgard2400 separators was modified by electrospun poly(vinylidene fluoride-hexafluoropropylene)(PVDF- HFP) nanofibers as functional layer deposited on the surface of Celgard2400 membrane. The average diameter of PVDF-HFP nanofibers was dependent on the electrospinning parameters. And, the physical properties of composite separators were dependent on the thickness and porosity of PVDF-HFP nanofiber membrane. The electrolyte uptake and porosity of modified Celgard separator were increased at 2.52 and 1.92 times than before, respectively. The charge and discharge cycle characteristics and AC impedance performance of the coin type cell with PVDF-HFP / Celard composite separators were further tested; the results showed that the power capacity of celgard 2400 seperator was enhanced after modified by PVDF- HFP nanofiber membrane.
The modification method and property of Li-ion batteries Celgard2400 separator were investigated in this work. The surface of Celgard2400 separators was modified by electrospun poly(vinylidene fluoride-hexafluoropropylene)(PVDF- HFP) nanofibers as functional layer deposited on the surface of Celgard2400 membrane. The average diameter of PVDF-HFP nanofibers was dependent on the electrospinning parameters. And, the physical properties of composite separators were dependent on the thickness and porosity of PVDF-HFP nanofiber membrane. The electrolyte uptake and porosity of modified Celgard separator were increased at 2.52 and 1.92 times than before, respectively. The charge and discharge cycle characteristics and AC impedance performance of the coin type cell with PVDF-HFP / Celard composite separators were further tested; the results showed that the power capacity of celgard 2400 seperator was enhanced after modified by PVDF- HFP nanofiber membrane.
The modification method and property of Li-ion batteries Celgard2400 separator were investigated in this work. The surface of Celgard2400 separators was modified by electrospun poly(vinylidene fluoride-hexafluoropropylene)(PVDF- HFP) nanofibers as functional layer deposited on the surface of Celgard2400 membrane. The average diameter of PVDF-HFP nanofibers was dependent on the electrospinning parameters. And, the physical properties of composite separators were dependent on the thickness and porosity of PVDF-HFP nanofiber membrane. The electrolyte uptake and porosity of modified Celgard separator were increased at 2.52 and 1.92 times than before, respectively. The charge and discharge cycle characteristics and AC impedance performance of the coin type cell with PVDF-HFP / Celard composite separators were further tested; the results showed that the power capacity of celgard 2400 seperator was enhanced after modified by PVDF- HFP nanofiber membrane.
引文