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题名: Highly stable aromatic poly (ether sulfone) composite ion exchange membrane for vanadium flow battery
作者: Yuan, Zhizhang1, 2;  Dai, Qing1, 2;  Qiao, Lin1, 2;  Zhao, Yuyue1, 2;  Zhang, Huamin1, 3;  Li, Xianfeng1, 3
关键词: Vanadium flow battery ;  Aromatic poly (ether sulfone) ;  Ion exchange membrane ;  Phosphotungstic acid ;  Chemical stability
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2017-11-01
DOI: 10.1016/j.memsci.2017.07.036
卷: 541, 页:465-473
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Enhancing the chemical stability of ion exchange membranes is essential for improving cycle life and enabling the widespread utilization of flow batteries. Although numerous studies have been devoted to generate ion exchange membranes with high efficiency and stability, the progress is heavy going, especially for the nonfluorinated ion exchange membranes. Here we describe the preparation and utilization of an aromatic poly (ether sulfone) composite ion exchange membrane for vanadium flow battery application. The ion exchange groups are constructed by fixing the phosphotungstic acid into the alkaline poly (vinyl pyrrolidone) through the acid-base reaction, while the aromatic poly (ether sulfone) is used as the matrix. The stability and performance of the prepared membrane are verified by utilizing it in a vanadium flow battery. Both in situ and ex situ oxidation stability tests demonstrate that the aromatic poly (ether sulfone) composite ion exchange membrane has excellent stability in vanadium flow battery medium. In addition, a battery with a prepared membrane exhibits a coulombic efficiency of 99.36% and an energy efficiency of 81.61% at the current density of 140 mA cm(-2). The aromatic poly (ether sulfone) composite ion exchange membrane represents a close step towards the design and construction of alternative types of membranes for battery application.
关键词[WOS]: ENERGY-STORAGE ;  POROUS MEMBRANES ;  FUEL-CELLS ;  DEGRADATION ;  MECHANISM
语种: 英语
WOS记录号: WOS:000408371400047
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149986
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China

Recommended Citation:
Yuan, Zhizhang,Dai, Qing,Qiao, Lin,et al. Highly stable aromatic poly (ether sulfone) composite ion exchange membrane for vanadium flow battery[J]. JOURNAL OF MEMBRANE SCIENCE,2017,541:465-473.
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