化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (12) : 85-89.

新材料与新技术

静电纺丝法制备聚偏二氟乙烯-六氟丙烯共聚物锂离子电池隔膜及性能

作者信息 +

Preparation and property of electrospinning PVDF-HFP using as lithium-ion battery separator

Gao Xin, Pei Guangling

Author information +

文章历史 +

Received
2017-07-05
Issue Date	Revised Date
2019-01-07	2017-07-05

PDF (7253K)

摘要

以N,N-二甲基甲酰胺(DMF)和丙酮的混合溶液为溶剂,通过静电纺丝技术制备了聚偏二氟乙烯-六氟丙烯共聚物(PVDF-HFP)纳米纤维膜,并对纺丝工艺及纤维膜的性能进行了详细研究。结果表明:PVDF-HFP纤维膜的最佳纺丝工艺条件为:纺丝液浓度为0.26g/mL、溶剂DMF与丙酮的体积比为7∶3、纺丝电压为20kV、纺丝温度为30℃。制备的PVDF-HFP纤维膜中纤维直径主要分布在150～300nm,膜的熔点为157.94℃,拉伸强度为10.09MPa,断裂伸长率为74.34%,孔隙率达84%,吸液率达到570%。

Abstract

The electrospinning PVDF-HFP nano fiber membranes were prepared and the acetone and N,N-dimethylformamide (DMF) were chosen as mixed solvent.PVDF-HFP membrane can be used as lithium-ion battery separator.The process parameter and properties of PVDF-HFP were studied in detail.The results showed the optimum spinning condition as follow:the concentration of PVDF-HFP 0.26g/mL,the volume ratio of N,N-dimethylformamide(DMF) and acetone was 7∶3,the electrospinning voltage was 20kV and the spinning temperature was 30℃.The diameter of PVDF-HFP nano fiber prepared under optimum spinning condition distributed over 150～300nm.The meltingpoint of PVDF-HFP was 157.94℃ which was higher than commercial lithium-ion battery separator.The tensile strength was 10.09MPa and the elongation at break was 74.34%.The porosity achieved 84% and electrolyte uptake was as high as 570%.

关键词

静电纺丝 / 聚偏二氟乙烯-六氟丙烯共聚物 / 锂离子电池 / 隔膜

Key words

electrospinning / PVDF-HFP / lithium-ion battery / separator

引用本文

引用格式 ▾

静电纺丝法制备聚偏二氟乙烯-六氟丙烯共聚物锂离子电池隔膜及性能[J]. 化工新型材料, 2018, 46(12): 85-89 DOI:

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] 瞿威.静电纺丝法制备锂离子电池用PVDF/PU纳米纤维隔膜[D].武汉:武汉理工大学,2011.
[2] Lee M J,Hwang J K,Kim J H,et al.Electrochemical performance of a thermally rearranged polybenzoxazolenanocomposite membrane as a separator for lithium-ion batteries at elevated temperature[J].Journal of Power Sources,2016,305:259-266.
[3] 张占磊.电纺法制备PVDF及其复合纤维膜用于锂离子电池隔膜研究[D].哈尔滨:哈尔滨工业大学,2012.
[4] 赵亮.PVDF-HFP超细纤维膜及其以PEGDMA交联改性研究[D].天津:天津大学,2006.
[5] Chen M L,Lin C C,Su H L,et al.Processing and characterization of electrospun poly(3-hydroxybut.yrate-co-3-hydroxyhexanoate) nano fibrous membranes[J].Polymer,2008,49(2):546-553.
[6] Moon J,Park J A,Lee S J,et al.Pd-doped TiO₂ nano fiber networks for gas sensor applications[J].Sensors and Actuators B:Chemical,2010,149(1):301-305.
[7] 王策,卢晓峰.有机纳米功能材料:高压静电纺丝技术与纳米纤维[M].北京:科学出版社,2015,29-44.
[8] Croce F,Focarete M L,Hassoun J,et al.A safe,high-rateand high-energy polymer lithium-ion battery based on gelled membranes prepared by electrospinning[J].Energy & Environmental Science,2011,4(3):921-927.
[9] Wang Q,Song W L,Wang L,et al.Electrospun polyimide-based fiber membranes as polymer electrolytes for lithium-ion batteries[J].Electrochimica Acta,2014,132:538-544.
[10] Xiao K,Zhai Y,Yu J,et al.Nanonet-structured poly(m-phenyleneisophthalamide)-polyurethane membranes with enhanced thermostability and wettability for high power lithium ion batteries[J].RSC Advances,2015,5(68):55478-55485.
[11] Yanilmaz M,Zhang X.Polymethylmethacrylate/polyacrylonitrile membranes via centrifugal spinning as separator in Li-ion batteries[J].Polymers,2015,7(4):629-643.
[12] Kimura N,Sakumoto T,Mori Y,et al.Fabrication and characterization of reinforced electrospun poly(vinylidenefluoride-co-hexafluoropropylene) nanofiberMembranes[J].Composites Science and Technology,2014,92:120-125.
[13] Prasanth R,Aravindan V,Srinivasan M.Novel polymer electrolyte based on Cob-web electrospun multi component polymer blend of polyacrylonitrile/poly(methyl methacrylate)/polystyrene for lithium ion batteries-preparationand electrochemical characterization[J].Journal of Power Sources,2012,202:299-307.
[14] Yvonne T,Zhang C,Zhang C,et al.Properties of electrospun PVDF/PMMA/CA membrane as lithium based battery separator[J].Cellulose,2014,21(4):2811-2818.
[15] Zhai Y,Xiao K,Yu J,et al.Thermostable and nonflammable silica-polyetherimide-polyurethane nanofibrous separators for high power lithium ion batteries[J].Journal ofMaterials Chemistry A,2015,3(19):10551-10558.
[16] 彭淑静,梁银峥.PVDF/SiO₂复合纤维膜的制备及电化学性能[J].绝缘材料,2015,48(6):13-17.
[17] Padmaraj O,Rao B N,Jena P,et al.Electrochemical studies of electrospun organic/inorganic hybrid nanocomposite fibrous polymer electrolyte for lithium battery[J].Polymer,2014,55(5):1136-1142.
[18] Chen W,Liu Y,Ma Y,et al.Improved performance of lithium ion battery separator enabled by Co-electrospinnig polyimide/poly(vinylidenefluoride-co-hexafluoropropylene)and the incorporation of TiO₂-(2-hydroxyethyl methacrylate)[J].Journal of Power Sources,2015,273:1127-1135.
[19] Li W,Xing Y,Wu Y,et al.Study the effect of ion-complexon the properties of composite gel polymer electrolyte based on electrospun PVDF nanofibrous membrane[J].Electrochimica Acta,2015,151:289-296.
[20] Costa C M,Silva M M,Lanceros-Mendez S.Battery separators based on vinylidene fluoride(VDF) polymers and copolymers for lithium ion battery applications[J].RSC Adv,2013,DOI:10.1039/C3RA40732B.
[21] Costa C M,Ribelles J L G,Lanceros-Méndez S,et al.Poly(vinylidene fluoride)-based,co-polymer separator electrolyte membranes for lithium-ion battery systems[J].Journal of Power Sources,2014,245(1):779-786.
[22] Seol W H,Lee Y M,Park J K.Preparation and characterization of new microporous stretched membrane for lithium rechargeable battery[J].J Power Sources,2006,163:247.