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

WANG Wenpin; WANG Shubo; XIE Xiaofeng; LV Yafei; HUANG Mianyan

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

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

更新时间：2025-12-10

- Nonfluorinated anion exchange membranes based on imidazolium salts for all-vanadium redox flow battery
- CIESC Journal Issue S1, Pages: 203-208(2013)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.z1.032
  CLC： Q152
- Online First：30 December 2013，
  
  Published：30 December 2013
- 稿件说明：
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WANG Wenpin, WANG Shubo, XIE Xiaofeng, et al. Nonfluorinated anion exchange membranes based on imidazolium salts for all-vanadium redox flow battery[J]. CIESC Journal, 2013, (S1): 203-208.
DOI：

WANG Wenpin, WANG Shubo, XIE Xiaofeng, et al. Nonfluorinated anion exchange membranes based on imidazolium salts for all-vanadium redox flow battery[J]. CIESC Journal, 2013, (S1): 203-208. DOI： 10.3969/j.issn.0438-1157.2013.z1.032.

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。

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℃.

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