| Quaternary ammonium groups grafted polybenzimidazole membranes for vanadium redox flow battery applications | |
| Ren, Xiaorui1; Zhao, Lina2; Che, Xuefu1; Cai, Yuyang3; Li, Yunqi3; Li, Huanhuan1; Chen, Hui2; He, Hongxiang2; Liu, Jianguo2; Yang, Jingshuai1 | |
| Corresponding Author | Liu, Jianguo(jgliu@imr.ac.cn) ; Yang, Jingshuai(yjs@mail.neu.edu.cn) |
| 2020-05-01 | |
| Source Publication | JOURNAL OF POWER SOURCES
 |
| ISSN | 0378-7753 |
| Volume | 457Pages:10 |
| Abstract | The sulfuric acid (SA) doped dense polybenzimidazole (PBI) membrane exhibits low vanadium crossover, and is of great interest as the separator in vanadium redox flow battery (VRFB) applications. However, further reducing the area resistance is needed to increase the voltage efficiency. Towards this target, a series of quaternary ammonium groups grafted PBI membranes are designed and synthesized by using 2,3-epoxypropyltrimethylammonium chloride (EPTMA-Cl) as the grafting agent. The membranes were prepared through a gentle and facile heating curing method without the usage of catalyst, and physicochemical properties and single cell performance of SA doped PBI-EPTMA membranes are systematically investigated. The results indicate that grafted EPTMA groups increase the hydmphilicity and free volume of membranes, resulting in enhanced SA doping content and decreased area resistance. Ultimately, VRFB assembled with the PBI-21%EPTMA membrane displays higher energy efficiencies (87.6%-75.3%) at current densities of 50-150 mA cm(-2), comparing with Nafion115 (81.7-61.2%). The stable performance over 450 charge-discharge cycles of VRFB demonstrates the good stability of the PBI-EPTMA membrane. |
| Keyword | Vanadium flow battery Polybenzimidazole Grafting Quaternary ammonium groups |
| Funding Organization | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Liaoning Provincial Natural Science Foundation of China ; Shenyang key R&D and technology transfer program |
| DOI | 10.1016/j.jpowsour.2020.228037 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51603031] ; Fundamental Research Funds for the Central Universities[N2005026] ; Liaoning Provincial Natural Science Foundation of China[20180550871] ; Shenyang key R&D and technology transfer program[Z17-7-026] |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000523642000019 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137981 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Jianguo; Yang, Jingshuai |
| Affiliation | 1.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab High Performance Synthet Rubber & Its Com, Changchun 130022, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Xiaorui,Zhao, Lina,Che, Xuefu,et al. Quaternary ammonium groups grafted polybenzimidazole membranes for vanadium redox flow battery applications[J]. JOURNAL OF POWER SOURCES,2020,457:10. |
| APA | Ren, Xiaorui.,Zhao, Lina.,Che, Xuefu.,Cai, Yuyang.,Li, Yunqi.,...&Yang, Jingshuai.(2020).Quaternary ammonium groups grafted polybenzimidazole membranes for vanadium redox flow battery applications.JOURNAL OF POWER SOURCES,457,10. |
| MLA | Ren, Xiaorui,et al."Quaternary ammonium groups grafted polybenzimidazole membranes for vanadium redox flow battery applications".JOURNAL OF POWER SOURCES 457(2020):10. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment