Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery
Renewable energy requires long-duration energy storage technologies, of which vanadium flow battery is regarded as the most suitable candidate for safe and long-duration energy storage applications. However, vanadium flow batteries still suffer from capacity decay and low power density, which aris...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Journal of Experimental Nanoscience |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17458080.2024.2327288 |
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| author | Yufei Gao Chunxue Wang Han Ye Ying Zhang |
| author_facet | Yufei Gao Chunxue Wang Han Ye Ying Zhang |
| author_sort | Yufei Gao |
| collection | DOAJ |
| description | Renewable energy requires long-duration energy storage technologies, of which vanadium flow battery is regarded as the most suitable candidate for safe and long-duration energy storage applications. However, vanadium flow batteries still suffer from capacity decay and low power density, which arise from membrane degradation and high resistance. Herein, a sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) (SOPBI) membrane is reported for use in vanadium redox flow batteries. The prepared SOPBI membranes show an area resistance of 0.63 Ω cm2 at room temperature after doped with 3 M H2SO4. Moreover, membranes with 3 M H2SO4 doping exhibit tensile stress at break of 15.1 MPa. Benefiting from the SOPBI membrane, the all-vanadium redox flow battery delivers a superior energy efficiency of 77.7% at 140 mA cm−2 while operating stably at a current density of 120 mA cm−2 for 200 cycles. |
| format | Article |
| id | doaj-art-381f682a731b4877a24cf73b200be59f |
| institution | DOAJ |
| issn | 1745-8080 1745-8099 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Experimental Nanoscience |
| spelling | doaj-art-381f682a731b4877a24cf73b200be59f2025-08-20T02:39:24ZengTaylor & Francis GroupJournal of Experimental Nanoscience1745-80801745-80992024-12-0119110.1080/17458080.2024.2327288Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow batteryYufei Gao0Chunxue Wang1Han Ye2Ying Zhang3School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin, ChinaBlooming (Beijing) Technology Co., Ltd, Beijing, ChinaSINOPEC (Dalian) Research Institute of Petroleum and Petrochemicals Co., Ltd, Dalian, ChinaSINOPEC (Dalian) Research Institute of Petroleum and Petrochemicals Co., Ltd, Dalian, ChinaRenewable energy requires long-duration energy storage technologies, of which vanadium flow battery is regarded as the most suitable candidate for safe and long-duration energy storage applications. However, vanadium flow batteries still suffer from capacity decay and low power density, which arise from membrane degradation and high resistance. Herein, a sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) (SOPBI) membrane is reported for use in vanadium redox flow batteries. The prepared SOPBI membranes show an area resistance of 0.63 Ω cm2 at room temperature after doped with 3 M H2SO4. Moreover, membranes with 3 M H2SO4 doping exhibit tensile stress at break of 15.1 MPa. Benefiting from the SOPBI membrane, the all-vanadium redox flow battery delivers a superior energy efficiency of 77.7% at 140 mA cm−2 while operating stably at a current density of 120 mA cm−2 for 200 cycles.https://www.tandfonline.com/doi/10.1080/17458080.2024.2327288SulfonationOPBIpolymer membranevanadium flow batteries |
| spellingShingle | Yufei Gao Chunxue Wang Han Ye Ying Zhang Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery Journal of Experimental Nanoscience Sulfonation OPBI polymer membrane vanadium flow batteries |
| title | Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery |
| title_full | Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery |
| title_fullStr | Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery |
| title_full_unstemmed | Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery |
| title_short | Highly ion-selective sulfonated poly (4,4′-diphenylether-5,5′-bibenzimidazole) membranes for vanadium redox flow battery |
| title_sort | highly ion selective sulfonated poly 4 4 diphenylether 5 5 bibenzimidazole membranes for vanadium redox flow battery |
| topic | Sulfonation OPBI polymer membrane vanadium flow batteries |
| url | https://www.tandfonline.com/doi/10.1080/17458080.2024.2327288 |
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