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学科主题物理化学
Morphology and performance of poly(ether sulfone)/sulfonated poly(ether ether ketone) blend porous membranes for vanadium flow battery application
Xu, Wanxing1,2; Li, Xianfeng1; Cao, Jingyu1,2; Yuan, Zhizhang1,2; Zhang, Huamin1; Li XF(李先锋); Zhang HM(张华民)
刊名RSC ADVANCES
2014
DOI10.1039/c4ra05083e
4期:76页:40400-40406
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]RESEARCH-AND-DEVELOPMENT ; VO2+/VO2+ REDOX COUPLES ; GRAPHENE OXIDE ; FUEL-CELLS ; POLYMERIZATION ; PROGRESS
英文摘要Poly(ether sulfone) (PES) porous membranes with tunable morphology were fabricated via a phase inversion method and applied in vanadium flow batteries (VFBs). The morphology of the PES membrane was adjusted by changing the polymer concentration and blending with hydrophilic sulfonated poly(ether ether ketone) (SPEEK) in the cast solution. The relationship between the membrane morphology and the performance in VFBs was investigated in detail. The results indicated that with increasing polymer concentration of the cast solution, the number of macrovoids gradually decreased and the finger-like pores became larger. A higher coulombic efficiency (CE) can be obtained due to the lower vanadium permeability, while the voltage efficiency (VE) decreased. In addition, the introduction of SPEEK in cast solution will induce the transformation of membrane structures from finger-like to spongy-like pores. The CE decreased with the higher vanadium permeability, while the VE increased due to the increased proton conductivity. As a result, optimized VFB performance of the PES membranes was obtained, showing a CE of 92.8% and an energy efficiency (EE) of 78.4%. The battery assembled with the prepared membranes showed a stable battery performance after running for more than 200 cycles, showing good oxidation stability. This work presents an effective and facile method to fabricate PES membranes with tunable battery performance.
语种英语
WOS记录号WOS:000341936400039
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143944
专题中国科学院大连化学物理研究所
通讯作者Li XF(李先锋); Zhang HM(张华民)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Xu, Wanxing,Li, Xianfeng,Cao, Jingyu,et al. Morphology and performance of poly(ether sulfone)/sulfonated poly(ether ether ketone) blend porous membranes for vanadium flow battery application[J]. RSC ADVANCES,2014,4(76):40400-40406.
APA Xu, Wanxing.,Li, Xianfeng.,Cao, Jingyu.,Yuan, Zhizhang.,Zhang, Huamin.,...&张华民.(2014).Morphology and performance of poly(ether sulfone)/sulfonated poly(ether ether ketone) blend porous membranes for vanadium flow battery application.RSC ADVANCES,4(76),40400-40406.
MLA Xu, Wanxing,et al."Morphology and performance of poly(ether sulfone)/sulfonated poly(ether ether ketone) blend porous membranes for vanadium flow battery application".RSC ADVANCES 4.76(2014):40400-40406.
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