项目名称： 全钒液流电池用杂环聚芳醚的设计及其两性膜的结构与性能关系研究

项目编号： No.21276037

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 化学工业

项目作者： 张守海

作者单位： 大连理工大学

项目金额： 80万元

中文摘要： 全钒液流电池是一种高效电能储存装置。离子交换膜是全钒液流电池的关键部件之一，其性能决定了全钒液流电池的使用寿命和能量效率。目前，全钒液流电池用膜材料仍较少，而且单一的阳离子交换膜或阴离子交换膜较难完全满足其使用需求，限制了全钒液流电池的商业化推广应用。本项目从分子结构设计出发，合成系列含甲基杂萘联苯共聚芳醚，研究其甲基单溴化反应，制备含溴甲基杂萘联苯共聚芳醚；以含溴甲基杂萘联苯共聚芳醚和磺化杂萘联苯聚芳醚为膜材料，采用溶液法制备共混基膜，经季铵化、酸化，制备既含有季铵基团又含有磺酸基团的杂环聚芳醚两性离子交换膜。研究杂环聚芳醚两性膜微观结构的调控机制；研究膜材料主链结构和离子基团的种类、数量以及膜的微观结构等与两性膜性能的关系；揭示膜材料结构、两性膜微观结构与全钒液流电池性能的关系，对新型高选择性、高离子传导率、高稳定性全钒液流电池用离子交换膜的设计及制备具有重要的理论意义和实际应用价值。

中文关键词： 杂萘联苯；聚芳醚；溴化；两性离子交换膜；全钒液流电池

英文摘要： All-vanadium redox flow battery (VRB) is a kind of high efficient energy storage equipment. The ion exchange membrane is one of key components of VRB batteries, whose properties determine the use life and energy efficiency of VRB to some degree. Nowadays, the membrane materials for VRB applications are insufficient, and single anion exchange membrane or cation exchange membrane can not entirely meet the requirements of VRB applications, which limit the commercial applications of VRB. Based on the design of molecular structure, poly(phthalazinone ether)s containing methyl moieties membrane materials will be synthesized. The bromination of methyl groups will be studied to prepare poly(phthalazinone ether)s containing bromomethyl moieties. Blend baes membranes will be prepared from poly(phthalazinone ether)s containing bromomethyl moieties and sulfonated poly(phthalazinone ether)s by casting solution, then the base membranes will be quaternized and acidized successively to obtain poly(phthalazinone ether)s amphoteric ion exchange membranes containing both quaternary ammonium groups and sulfuric acid groups. The control mechanism of poly(phthalazinone ether)s amphoteric ion exchange membranes microstructure will be studied. The relationship between main chain structure of membrane material, kinds and content of ion

英文关键词： Phthalazinone；Poly(aryl ether)s；Bromination；Amphoteric Ion Exchange Membrane；Vanadium Redox Flow Battery