Electron beam irradiation modified electrospun polyvinylidene fluoride/polyacrylonitrile fibrous separators for safe lithium-ion batteries

Jia Shaojin; Huang Kaili; Long Jiating; Yang Shaohua; Liang Yuhao; Yang Na; Xiao Jun

首页> 外文期刊>Journal of Applied Polymer Science >Electron beam irradiation modified electrospun polyvinylidene fluoride/polyacrylonitrile fibrous separators for safe lithium-ion batteries

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Electron beam irradiation modified electrospun polyvinylidene fluoride/polyacrylonitrile fibrous separators for safe lithium-ion batteries

机译：用于安全锂离子电池的电子束照射改性电纺聚乙烯氟化物/聚丙烯腈纤维分离器

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摘要

This work aims to obtain more hydrophilic and thermal stable electrospun fibrous membranes for lithium-ion battery separators. For this purpose, the polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) separators are fabricated via electrospinning and modified by an electron beam with different doses. These preparation processes are simple, fast, and environmentally friendly. As the same time, the physical and electrochemical properties of these separators are investigated in detail. The results indicated that all the irradiated PVDF/PAN (the mass ratio of PVDF and PAN is 1:1) separators can maintain a complete structure till 170 degrees C due to their cross-linking structure. Besides, the 150-kGy-irradiated PVDF/PAN separator exhibits high porosity (82%), excellent electrolyte absorption (497%), and high ionic conductivity (3.19 mS cm(-1)). As a consequence, the cells with 150-kGy-irradiated PVDF/PAN separators show better the C-rate performance and cycling stability than those of the cells with polypropylene separators and nonirradiated PVDF/PAN separators.

机译：这项工作的目的是获得更亲水和热稳定的锂离子电池隔膜电纺纤维膜。为此，聚偏氟乙烯/聚丙烯腈（PVDF/PAN）分离器通过静电纺丝制备，并通过不同剂量的电子束进行改性。这些制备过程简单、快速、环保。同时，对这些分离器的物理和电化学性能进行了详细的研究。结果表明，由于PVDF/PAN（PVDF与PAN的质量比为1:1）的交联结构，所有辐照的PVDF/PAN分离器在170℃前都能保持完整的结构。此外，150kgy辐照的PVDF/PAN分离器具有高孔隙率（82%）、优良的电解质吸收（497%）和高离子电导率（3.19ms-cm（-1））。因此，与使用聚丙烯隔板和未使用辐照PVDF/PAN隔板的电池相比，使用150 kGy辐照PVDF/PAN隔板的电池显示出更好的C速率性能和循环稳定性。

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来源
《Journal of Applied Polymer Science》 |2021年第18期|共11页
作者
Jia Shaojin; Huang Kaili; Long Jiating; Yang Shaohua; Liang Yuhao; Yang Na; Xiao Jun;
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作者单位

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

Shanghai Univ Coll Environm &

Chem Engn Dept Chem Engn &

Technol Shanghai 200444 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
lithiumamp; 8208; ion battery; electrospinning; separators; thermal properties;

机译：锂＆amp;8208;离子电池;静电纺丝;分离器;热性质;

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专利

1. Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries [J] . Hongyu Liu, Zehui Dai, Jun Xu, 天然气化学（英文版） . 2014,第005期
2. Effect of silica nanoparticles/poly（vinylidene fluoride-hexafluoropropylene） coated layers on the performance of polypropylene separator for lithium-ion batteries [J] . Hongyu Liu, Zehui Dai, Jun Xu, 能源化学：英文版 . 2014,第005期
3. Rational design on separators and liquid electrolytes for safer lithium-ion batteries [J] . Mengqi Yuan, Kai Liu 天然气化学（英文版） . 2020,第004期
4. Rational design on separators and liquid electrolytes for safer lithium-ion batteries [J] . Mengqi Yuan, Kai Liu 能源化学：英文版 . 2020,第004期
5. Heat treatment of electrospun Polyvinylidene fluoride fibrous membrane separators for rechargeable lithium-ion batteries [J] . Yinzheng Liang, Sichen Cheng, Jianmeng Zhao, Journal of power sources . 2013,第octa15期

机译：可充电锂离子电池用电纺聚偏氟乙烯纤维膜隔板的热处理
6. Surface-modified electrospun polyacrylonitrile nano-membrane for a lithium-ion battery separator based on phase separation mechanism [J] . Dong Ting, Ul Arifeen Waqas, Choi Jungwook, Chemical engineering journal . 2020,第1期

机译：基于相分离机理的锂离子电池隔膜的表面改性电纺聚乙烯纳米膜
7. A novel silsesquioxanes modified electrospun composite fibrous separator by in-situ crosslinking method for lithium-ion batteries [J] . Gui Xuefeng, Liu Lingli, Gao Shuxi, Materials Letters . 2019,第MAYa1期

机译：原位交联法制备新型倍半硅氧烷改性的电纺复合纤维隔板
8. Preparation and Characterization of electrospun PVDF/PMMA composite fibrous membranes-based separator for lithium-ion batteries [C] . Yinzheng Liang, Sichen Cheng, Jianmeng Zhao, International Conference on Advanced Engineering Materials and Technology . 2013

机译：锂离子电池电纺PVDF / PMMA复合纤维膜分离器的制备与表征
9. Comparative Analysis of Polyvinylidene Fluoride in the Development of Embedded Sensors and Smart Separators for Lithium Ion Batteries [D] . Parker, Adrian. 2018

机译：锂离子电池嵌入式传感器和智能隔板开发中聚偏氟乙烯的比较分析
10. Functional Ionic Liquid Modified Core-Shell Structured Fibrous Gel Polymer Electrolyte for Safe and Efficient Fast Charging Lithium-Ion Batteries [O] . Xiaoxia Liu, Yufei Ren, Lan Zhang, 1970

机译：功能性离子液体改性的核壳结构纤维状凝胶聚合物电解质，可安全有效地快速充电锂离子电池
11. Molecular scale imaging and observation of electron beam-induced changes of polyvinylidene fluoride molecules in electrospun nanofibers [O] . Zhong Zhenxin, Howe Jane Y., Reneker Darrell H. 2013

机译：电纺纳米纤维中聚偏二氟乙烯分子的分子尺度成像和电子束诱导变化
12. Instability of Polyvinylidene Fluoride-Based Polymeric Binder in Lithium-Ion Cells: Final Report [R] . Garcia, M., Nagasubramanian, G., Tallant, D. R., 1999

机译：锂离子电池中聚偏二氟乙烯基聚合物粘合剂的不稳定性：最终报告

Electron beam irradiation modified electrospun polyvinylidene fluoride/polyacrylonitrile fibrous separators for safe lithium-ion batteries

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