New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery

doi:10.1016/j.eurpolymj.2021.110858

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	New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery
	Tang, Weiqin 1; Leng, Shifan 1; Jin, Yaping 1; Liu, Ruihong 1; Che, Xuefu 1; Liu, Jianguo 2; Yang, Jingshuai 1
刊名	EUROPEAN POLYMER JOURNAL
	2021-12-05
卷号	161 页码:8
关键词	Crosslinking Polymer membrane Lactamization Cardo-poly(etherketone) Poly(ethylene imine) Vanadium redox flow battery
ISSN号	0014-3057
DOI	10.1016/j.eurpolymj.2021.110858
通讯作者	Liu, Jianguo(jgliu@imr.ac.cn) ; Yang, Jingshuai(yjs@mail.neu.edu.cn)
英文摘要	Developing polymer membranes with low cost, high ionic conduction and low vanadium ion permeability simultaneously for the vanadium redox flow battery (VRFB) is a huge challenge to macromolecule design and engineering. Herein, a series of high-performance and low-cost macromolecule cross-linked membranes for VRFB are synthesized from cardo-poly(etherketone) (PEKC) and poly(ethylene imine) (PEI) through a straightforward lactamization reaction between the primary amines in PEI and lactones in PEKC. Owing to the acid-base interaction between amino groups of PEI and sulfonic acid (SA), crosslinked x%PEI-PEKC membranes exhibit excellent SA adsorption capability and low area resistance. Meanwhile, the formed macromolecule multicrosslinked networks significantly improve the membrane-forming property of PEI and endow membranes with superior mechanical rigidity and low vanadium ion permeability simultaneously. Consequently, the 50% PEI-PEKC membrane exhibit a nearly 90 times higher ion selectivity of 24.71 x 105 S min cm-3 than Nafion 115. The assembled VRFB with 50%PEI-PEKC displays higher battery efficiencies than Nafion 115 at 60-160 mA cm-2, which also possesses superior cycling stability at 100 mA cm-2.
资助项目	Natural Science Foundation of China[51603031] ; Fundamental Research Funds for the Central Univer-sities of China[N2005026] ; Liaoning Provincial Natural Science Foun-dation of China[2020-MS-087]
WOS研究方向	Polymer Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000719414300007
资助机构	Natural Science Foundation of China ; Fundamental Research Funds for the Central Univer-sities of China ; Liaoning Provincial Natural Science Foun-dation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167420]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Jianguo; Yang, Jingshuai
作者单位	1.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Tang, Weiqin,Leng, Shifan,Jin, Yaping,et al. New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery[J]. EUROPEAN POLYMER JOURNAL,2021,161:8.
APA	Tang, Weiqin.,Leng, Shifan.,Jin, Yaping.,Liu, Ruihong.,Che, Xuefu.,...&Yang, Jingshuai.(2021).New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery.EUROPEAN POLYMER JOURNAL,161,8.
MLA	Tang, Weiqin,et al."New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery".EUROPEAN POLYMER JOURNAL 161(2021):8.