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学科主题: 物理化学
题名: The transfer behavior of different ions across anion and cation exchange membranes under vanadium flow battery medium
作者: Sun, Jiawei1;  Li, Xianfeng1;  Xi, Xiaoli1, 2;  Lai, Qinzhi1;  Liu, Tao1;  Zhang, Huamin1
通讯作者: 张华民
关键词: Electrochemistry ;  Electrolyte ;  Ion transfer behavior ;  Membranes ;  Vanadium
刊名: JOURNAL OF POWER SOURCES
发表日期: 2014-12-20
DOI: 10.1016/j.jpowsour.2014.07.111
卷: 271, 期:1, 页:1-7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: The transfer behavior of different ions (V2+, V3+, VO2+, VO2+,H+, SO42-) across ion exchange membranes is investigated under vanadium flow battery (VFB) operating condition. VX-20 anion exchange membrane (AEM) and Nafion 115 cation exchange membrane (CEM) are selected to investigate the influence of fixed charged groups on the transfer behavior of different ions. The interaction between different ions and water is discussed in detail aiming to ascertain the variation of different ions in the charge discharge process. Under the VFB medium, the transfer behavior and function of different ions are very different for the AEM and CEM. V2+ ions at the negative side accumulate when VFB is assembled with Nafion 115, while the VO2+ ions at the positive side accumulate for VX-20. The SO42+ ions will transfer across Nafion 115 to balance the charges and the protons can balance the charges of VX-20. Finally the capacity fade mechanism of different membranes is investigated, showing that the capacity decay of VFB assembled with Nafion 115 mainly results from the cross mix of vanadium ions across the membrane, however, for VX-20, the side reactions can be the major reason. This paper provides important information about electrolyte for the application of VFB. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: REDOX-BATTERY ;  ENERGY-STORAGE ;  CAPACITY LOSS ;  MORPHOLOGY ;  DIFFUSION
语种: 英语
WOS记录号: WOS:000343391600001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143922
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, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Sun, Jiawei,Li, Xianfeng,Xi, Xiaoli,et al. The transfer behavior of different ions across anion and cation exchange membranes under vanadium flow battery medium[J]. JOURNAL OF POWER SOURCES,2014,271(1):1-7.
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