钒电池用两性离子交换膜的研究进展  

Recent progress on amphoteric ion exchange membranes for vanadium redox flow battery applications

作　　者：陈宇宁 张守海[1] 蹇锡高[1] CHEN Yuning;ZHANG Shouhai;JIAN Xigao(School of Chemical Engineering, Dalian University of Technology, Liaoning High Performance Polymer Engineering Research Center, Liaoning Key laboratory of Polymer Science and Engineering, Dalian 116024, China)

机构地区：[1]大连理工大学化工学院,辽宁省高性能树脂工程技术研究中心,辽宁省高分子科学与工程重点实验室,大连116024

出　　处：《膜科学与技术》2020年第3期151-160,共10页Membrane Science and Technology

基　　金：国家自然科学基金项目(21276037);中央高校基本科研业务费资助项目(DUT19ZD404);辽宁省‘兴辽英才计划’项目(XLYC1802073)。

摘　　要：全钒氧化还原液流电池(钒电池)因具有响应速度快、操作安全、使用寿命长等优点成为大型储能装置领域的研究热点之一.离子交换膜作为钒电池关键组成部件之一,具有分隔正负极电解质和允许特定离子通过的功能.单一的阳离子交换膜或阴离子交换膜应用于钒电池时存在离子选择性和离子传导性无法兼顾的问题,而两性离子交换膜由于既含有阴离子交换基团又含有阳离子交换基团有望解决这一问题.本文主要介绍了近年来钒电池用两性离子交换膜的研究进展和存在的问题.未来钒电池用两性离子交换膜的发展方向是在保证选择性的基础上进一步提升离子传导性和稳定性,并降低制备成本.Vanadium redox flow battery(VRB)has attracted extensive attention due to the advantages of fast response speed,inherent safety,long cycle life and so on.As one of critical compartments of VRB,ion exchange membrane functions to separate the electrolytes in two half-cells and allow the transport of current carriers.Cation exchange membrane or anion exchange membrane for VRB application couldn't realize the trade-off between good ion selectivity and increased ion conductivity,while amphoteric ion exchange membranes with both anion exchange groups and cation exchange groups have the potential to solve the forementioned problem.The achievements on the amphoteric ion exchange membranes for VRB application were summarized,which were published in recent years,and corresponding problems of varied preparation methods were also presented in this work.It is important to prepare amphoteric ion exchange membranes with good stability and increased VRB efficiencies through a low-cost method.

关 键 词：全钒氧化还原液流电池 两性离子交换膜 制备 结构与性能 

分 类 号：TQ028[化学工程]