Liquid Nitrobenzene-Based Anolyte Materials for High-Current and -Energy-Density Nonaqueous Redox Flow Batteries
| Autor: | Yongdan Li, Donghan Xu, Cuijuan Zhang, Yihan Zhen |
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| Přispěvatelé: | Tianjin University, Industrial chemistry, Department of Chemical and Metallurgical Engineering, Aalto-yliopisto, Aalto University |
| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
nonaqueous electrolyte Aqueous solution Materials science electrochemical energy storage redox-active organic molecules Electrochemistry Redox Nitrobenzene chemistry.chemical_compound chemistry Chemical engineering redox flow battery General Materials Science Chemical stability nitrobenzene Solubility Current density |
| Zdroj: | ACS Applied Materials & Interfaces. 13:35579-35584 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.1c05564 |
| Popis: | Funding Information: This work was financially supported by the National Natural Science Foundation of China (21636007). Publisher Copyright: © 2021 American Chemical Society. Nonaqueous redox flow batteries (NARFBs) are a potential candidate for high-energy-density storage systems because of their wider electrochemical windows than that of the aqueous systems. However, their further development is hindered by the low solubility of organic redox-active materials and poor high-current operations. Herein, we report a liquid anolyte material, 3-nitrotoluene (3-NT), which demonstrates high chemical stability and mass-and charge-transfer kinetics. The NARFB based on 2,5-di-tert-butyl-1-methoxy-4-[2′-methoxyethoxy]benzene/3-NT exhibits an energy efficiency of 71.8% even at a relatively high current density of 60 mA cm-2. Benefiting from the high miscibility of the redox species, an ultra-high volumetric energy density of 37.8 W h L-1 can be achieved at 1.0 M. This work provides a viable method to build an NARFB with both high operational current density and energy density for next-generation, low-cost, and high-energy storage systems. |
| Databáze: | OpenAIRE |
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