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

doi:10.3969/j.issn.0438-1157.2013.z1.032

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

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. 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).

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. 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

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)。

Abstract

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

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

CLC Number:

TQ152

WANG Wenpin, WANG Shubo, XIE Xiaofeng, LV Yafei, HUANG Mianyan. Nonfluorinated anion exchange membranes based on imidazolium salts for all-vanadium redox flow battery[J]. CIESC Journal, 2013, 64(S1): 203-208.

王文嫔, 王树博, 谢晓峰, 吕亚非, 黄绵延. 全钒液流电池用非氟咪唑型阴离子交换膜的制备[J]. 化工学报, 2013, 64(S1): 203-208.

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

全钒液流电池用非氟咪唑型阴离子交换膜的制备

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