化工学报 ›› 2013, Vol. 64 ›› Issue (S1): 203-208.DOI: 10.3969/j.issn.0438-1157.2013.z1.032

• 材料化学工程与纳米技术 • 上一篇    

全钒液流电池用非氟咪唑型阴离子交换膜的制备

王文嫔1, 王树博2, 谢晓峰2, 吕亚非1, 黄绵延3   

  1. 1. 北京化工大学材料科学与工程学院, 北京 100029;
    2. 清华大学核能与新能源技术研究院, 北京 100084;
    3. 北京普能世纪科技有限公司, 北京 100022
  • 收稿日期:2013-12-03 修回日期:2013-12-10 出版日期:2013-12-30 发布日期:2013-12-30
  • 通讯作者: 谢晓峰,吕亚非
  • 作者简介:王文嫔(1987—),女,博士研究生。
  • 基金资助:

    国家自然科学基金项目(21176140);国家高技术研究发展计划项目(2012AA052201)。

Nonfluorinated anion exchange membranes based on imidazolium salts for all-vanadium redox flow battery

WANG Wenpin1, WANG Shubo2, XIE Xiaofeng2, LV Yafei1, HUANG Mianyan3   

  1. 1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;
    3. Beijing Prudent Energy Technology Co. Ltd., Beijing 100022, China
  • Received:2013-12-03 Revised:2013-12-10 Online:2013-12-30 Published:2013-12-30
  • Supported by:

    supported by the National Natural Science Foundation of China (21176140) and the National High Technology Research and Development Program of China (2012AA052201).

摘要: 在全钒电池(VFB)用离子交换膜中,阴离子交换膜以其钒离子渗透率低这一主要优势受到了广泛的关注。以N-溴代丁二酰亚胺(NBS)为溴化试剂,2,2'-偶氮二异丁腈(AIBN)为引发剂,对聚苯醚(PPO)的苄甲基溴化;以N-正丁基咪唑为功能化试剂,制备了一种非氟咪唑型聚苯醚阴离子交换膜。研究了不同N-正丁基咪唑功能化程度的阴离子交换膜的离子传导率、离子交换容量(IEC)、含水率、钒离子传递系数等性能,并与N-甲基咪唑功能化的阴离子交换膜做了对比。结果显示,N-正丁基咪唑功能化聚苯醚阴离子交换膜的钒离子传递系数为4.8×10-9 cm·min-1,60℃时离子传导率为10.8 mS·cm-1,且化学稳定性及力学性能优异,具有在钒电池中应用的潜力。

关键词: 钒电池, 阴离子交换膜, 咪唑阳离子

Abstract: Because of its low vanadium ions permeability, anion exchange membranes used in all-vanadium redox flow battery (VFB) have received a great deal of attention in recent years. A series of nonfluorinated imidazolium-type anion exchange membranes were synthesized by bromination of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) using N-bromobutanimide and quaternization with 1-butylimidazole or 1-methylimidazole. The conductivity, ion exchange capacity (IEC), water uptake and transfer coefficient of vanadium ions were studied. The transfer coefficient of vanadium ions of the prepared membranes (quaternization with 1-butylimidazole) was 4.8×10-9 cm·min-1, and the hydroxide conductivity was 10.8 mS·cm-1 at 60℃.

Key words: all-vanadium redox flow battery, anion exchange membranes, imidazolium

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