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| Main Authors: | , , , , , , , , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2025
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| Subjects: | |
| Online Access: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202402513 |
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Table of Contents:
- Nature of Solvent/Nonsolvent Strategy in Achieving Superior Polybenzimidazole Membrane for Vanadium Redox Flow Battery Yuke Su Suqin Liu Weiwei Zhu Kui Huang Guangyuan Mu Peng Jiang Jianhui Liu Guang Yang Zhen He Jue Wang ChemSusChem AbstractThe tightly connected structure of polybenzimidazole (PBI) membrane can be relaxed by solvent/nonsolvent solution to achieve a high proton conductivity for vanadium redox flow battery (VRFB). However, the nature behind the solvent/nonsolvent strategy is not unraveled. This work proposes a guideline to analyze the effect of PBI membrane relaxing formulas based on the interactions between different components in membranes. The supreme‐efficient PBI membrane derived by the DMSO/formamide formula according to the guideline displays a marvelous performance for VRFB, with the proton conductivity boosted by 4300 % (from 1.93 to 83.33 mS cm−1), and VRFB assembled with this membrane achieves an outstanding energy efficiency of 82.5 % under 200 mA cm−2. Moreover, this work profoundly unravels the structure, property and performance relationship of PBI membrane, which is of great value for the development of membranes. 10.1002/cssc.202402513 http://onlinelibrary.wiley.com/termsAndConditions#vor