VRB用季铵化聚醚砜阴离子交换膜  

Quaternized poly(ether sulfone)anion exchange membrane for VRB

作　　者：张守海[1] 王璠[1] 邢东博[1] 蹇锡高[1] 

机构地区：[1]大连理工大学高分子材料系,辽宁省高性能树脂工程技术研究中心,辽宁大连116012

出　　处：《电池》2010年第3期137-139,共3页Battery Bimonthly

基　　金：国家自然科学基金(20604005);大连理工大学大学生创新性实验计划项目(2008081)

摘　　要：对聚醚砜(PES)进行氯甲基化、季铵化改性,制备了季铵化PES(QAPES)阴离子交换膜,考察了不同离子交换容量(IEC)膜的含水率、面电阻(R)、化学稳定性及单体全钒氧化还原液流电池(VRB)的性能。IEC为1.47 mmol/g的QAPES膜的R为0.66Ω.cm2,在1.5 mol/L VO2+溶液中浸泡30 d,质量损失为4.5%,单体VRB的能量效率可达84.4%。Quaternized poly（ether sulfone）（QAPES）anion exchange membranes were prepared from poly（ether sulfone）（PES）via chloromethylation and quaternization modification.The water content,area resistance（R）,chemical stability of anion exchange membranes with different ion exchange capacity（IEC）and performance of single all vanadium redox flow battery（VRB）were investigated.The area resistance of QAPES membrane with IEC of 1.47 mmol/g was 0.66 Ω·cm2,the weight loss was 4.5% after soaking in 1.5 mol/L VO2＋ solution for 30 d.The energy efficiency of single VRB could reach 84.4%.

关 键 词：聚醚砜 季铵化 阴离子交换膜 全钒氧化还原液流电池(VRB) 

分 类 号：TM911.24[电气工程—电力电子与电力传动]