N-甲基-N-丁基吡咯烷溴化物和N-甲基-N-乙基吡咯烷溴化物在锌溴液流电池中应用

doi:10.13208/j.electrochem.161027

电化学（中英文） ›› 2017, Vol. 23 ›› Issue (6): 694-701. doi: 10.13208/j.electrochem.161027

N-甲基-N-丁基吡咯烷溴化物和N-甲基-N-乙基吡咯烷溴化物在锌溴液流电池中应用

张祺，张苗苗，孟琳*

青海省海东市百能汇通新能源科技有限公司，青海 810600

收稿日期:2016-10-27 修回日期:2017-04-13 出版日期:2017-12-28 发布日期:2017-04-15
通讯作者: 孟琳 E-mail:lmeng@zbestpower.com
基金资助:
青海省科技支撑计划资助

Applications of N-methyl-N-butyl-pyrrolidinium bromide and N-methyl-N-ethyl-pyrrolidinium bromide in Zn-Br Flow Batteries

ZHANG Qi, ZHANG Miao-miao, MENG Lin*

Qinghai ZBEST New Energy Co.,Ltd, Haidong810600, Qinghai, China

Received:2016-10-27 Revised:2017-04-13 Published:2017-12-28 Online:2017-04-15
Contact: MENG Lin E-mail:lmeng@zbestpower.com

摘要/Abstract

摘要：

在锌溴液流电池中，作为溴络合剂在电解液中使用的季铵盐对电池性能及安全性具有重要作用.本文利用循环伏安法及线性扫描伏安法研究了N-甲基-N-丁基吡咯烷溴化物（N-methyl-N-butyl-pyrrolidinium bromide，MBP）和N-甲基-N-乙基吡咯烷溴化物（N-methyl-N-ethyl-pyrrolidinium bromide，MEP）分别加入到电解液后对电极反应的影响，通过交流阻抗（EIS）的方式测量了不同组成及浓度下的电解液电导率变化，测试了不同电解液对电池充放电性能的影响及溴络合能力，结果表明加入MBP的电解液具有更好的溴络合能力和电池性能.

关键词: 锌溴液流电池, 季铵盐, N-甲基-N-丁基吡咯烷溴化物, N-甲基-N-乙基吡咯烷溴化物, 络合溴

Abstract: It is extremely important for battery performance and safety in Zn-Br flow battery to use quaternary ammonium salts as complex agents for bromine. In this work, the effects of electrolyte compositions and concentrations on the electrode reactions and battery performances were studied in the absence and presences of N-methyl-N-ethyl-pyrrolidinium bromide (MEP) or N-methyl-N-butyl-pyrrolidinium bromide (MBP). The conductivities in the electrolytes containing different constitutions and concentrations were measured by EIS method. The charge-discharge performance for the battery and the complex ability for bromine in different electrolytes were also investigated. The results showed that the electrolyte containing MBP was better than that containing MEP for the battery performance and bromine complex ability.

Key words: quaternary ammonium salt, MEP；MBP, Zn-Br flow batteries, bromine complex

中图分类号:

O646
TM.911

张祺, 张苗苗, 孟琳. N-甲基-N-丁基吡咯烷溴化物和N-甲基-N-乙基吡咯烷溴化物在锌溴液流电池中应用[J]. 电化学（中英文）, 2017, 23(6): 694-701.

ZHANG Qi, ZHANG Miao-miao, MENG Lin. Applications of N-methyl-N-butyl-pyrrolidinium bromide and N-methyl-N-ethyl-pyrrolidinium bromide in Zn-Br Flow Batteries[J]. Journal of Electrochemistry, 2017, 23(6): 694-701.

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N-甲基-N-丁基吡咯烷溴化物和N-甲基-N-乙基吡咯烷溴化物在锌溴液流电池中应用

Applications of N-methyl-N-butyl-pyrrolidinium bromide and N-methyl-N-ethyl-pyrrolidinium bromide in Zn-Br Flow Batteries

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