Effect of Coagulation Bath on the Structure and Properties of Side-Chain Porous Anion Exchange Membrane for Vanadium Redox Flow Battery Application

被引：0
|
作者：
Wang Z. [1 ]
Zhang S. [1 ]
Liu Q. [1 ]
Yang Y. [1 ]
Zhuo L. [1 ]
Sun F. [1 ]
Liu Z. [1 ]
Jian X. [1 ]
机构：
[1] School of Chemical Engineering, Dalian University of Technology, Liaoning High Performance Resin Engineering Technology Research Center, Liaoning Key Laboratory of Polymer Science and Engineering, Dalian Key Laboratory of Membrane Materials and Processes,
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2023年 / 39卷 / 01期
关键词：
coagulation bath; porous anion exchange membrane; side-chain poly(aryl ether ketone)s; vanadium redox flow battery;
D O I：
10.16865/j.cnki.1000-7555.2023.0020
中图分类号：
学科分类号：
摘要：
In vapor induced phase separation (VIPS) process, using poly(phthalazinone ether ketone)s with benzyl chloride moieties (CMPPEK- P) as material, trimethylamine as amination reagent, a novel anion exchanged porous membrane (QAPPEK- P) with high battery performance was obtained and could be used in vanadium redox flow battery (VRFB). It is studied that how different concentrations of NaCl solution (mass fraction of 0% ~26%) as coagulation bath affect the structure and properties of the QAPPEK- P membrane. With the increase of NaCl concentration in coagulation bath, the results show that the porosity of the QAPPEK- P membranes increase, and the vanadium ion permeability of the membranes changes little, but the area resistance becomes lower. The QAPPEK- P membrane with the coagulation bath concentration 26% possesses the best cell performance, which shows a higher energy efficiency (80%) than Nafion 115 (76.8%) at 140 mA/cm2, and the membrane shows stable cell performance up to 150 cycles test at the current density of 120 mA/cm2. It is indicated that the QAPPEK- P membrane shows favorable development prospects for vanadium redox flow battery. © 2023 Chengdu University of Science and Technology. All rights reserved.
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页码：127 / 133
页数：6
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