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New crosslinked membranes based on cardo-poly(etherketone) and poly (ethylene imine) for the vanadium redox flow battery
Tang, Weiqin1; Leng, Shifan1; Jin, Yaping1; Liu, Ruihong1; Che, Xuefu1; Liu, Jianguo2; Yang, Jingshuai1
Corresponding AuthorLiu, Jianguo(jgliu@imr.ac.cn) ; Yang, Jingshuai(yjs@mail.neu.edu.cn)
2021-12-05
Source PublicationEUROPEAN POLYMER JOURNAL
ISSN0014-3057
Volume161Pages:8
AbstractDeveloping 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.
KeywordCrosslinking Polymer membrane Lactamization Cardo-poly(etherketone) Poly(ethylene imine) Vanadium redox flow battery
Funding OrganizationNatural Science Foundation of China ; Fundamental Research Funds for the Central Univer-sities of China ; Liaoning Provincial Natural Science Foun-dation of China
DOI10.1016/j.eurpolymj.2021.110858
Indexed BySCI
Language英语
Funding ProjectNatural 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 Research AreaPolymer Science
WOS SubjectPolymer Science
WOS IDWOS:000719414300007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167421
Collection中国科学院金属研究所
Corresponding AuthorLiu, Jianguo; Yang, Jingshuai
Affiliation1.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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