Preparation and performance of poly(vinyl alcohol) porous separator for lithium-ion batteries

IMR OpenIR

	Preparation and performance of poly(vinyl alcohol) porous separator for lithium-ion batteries
	Xiao, Wei; Zhao, Lina; Gong, Yaqun; Liu, Jianguo; Yan, Chuanwei; wxiao@imr.ac.cn
	2015
发表期刊	JOURNAL OF MEMBRANE SCIENCE
ISSN	0376-7388
卷号	487 页码:221-228
摘要	Poly(vinyl alcohol) (PVA) separator with highly developed porous structure is facilely prepared by a non-solvent induced phase separation (NIPS) wet-process and investigated in lithium-ion batteries. In this method, deionized water and ethanol are used as solvent and non-solvent for PVA material, respectively, and no pore forming additives are employed. Systematical investigations including morphology characterization, porosity measurement, electrolyte contact angle testing, electrolyte uptake/retention examination, and thermal shrinkage testing are carried out. The results demonstrate that this PVA separator possesses notable features, such as uniform and porous surface morphology, symmetric interconnected porous structure all through the separator thickness, and excellent electrolyte wett-ability, thus resulting in superior electrolyte adsorption/retention capacity, lower thermal shrinkage, and higher ionic conductivity, in comparison to the commercial polypropylene (PP) separator. Based on the above advantages, the PVA separator exhibits better electrochemical performances, such as the discharge C-rate capability and cycling performance, as compared to PP separator. This research presents a low-cost and environment-friendly approach to prepare a high performance separator, which is demonstrated to be a good candidate for lithium-ion batteries. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[xiao, wei ; zhao, lina ; gong, yaqun ; liu, jianguo ; yan, chuanwei] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china
关键词	Lithium Ion Battery Poly(Vinyl Alcohol) Separator Phase Separation Thermal Stability Electrochemical Performance
资助者	National Natural Science Foundation of China [21306213]
收录类别	sci
语种	英语
WOS记录号	WOS:000354490700024
引用统计	被引频次：107[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75072
专题	中国科学院金属研究所
通讯作者	wxiao@imr.ac.cn
推荐引用方式 GB/T 7714	Xiao, Wei,Zhao, Lina,Gong, Yaqun,et al. Preparation and performance of poly(vinyl alcohol) porous separator for lithium-ion batteries[J]. JOURNAL OF MEMBRANE SCIENCE,2015,487:221-228.
APA	Xiao, Wei,Zhao, Lina,Gong, Yaqun,Liu, Jianguo,Yan, Chuanwei,&wxiao@imr.ac.cn.(2015).Preparation and performance of poly(vinyl alcohol) porous separator for lithium-ion batteries.JOURNAL OF MEMBRANE SCIENCE,487,221-228.
MLA	Xiao, Wei,et al."Preparation and performance of poly(vinyl alcohol) porous separator for lithium-ion batteries".JOURNAL OF MEMBRANE SCIENCE 487(2015):221-228.