A high-rate nonaqueous organic redox flow battery
| Autor: | Donghan Xu, Yicheng Zhao, Cuijuan Zhang, Yongdan Li, Yihan Zhen |
|---|---|
| Přispěvatelé: | Tianjin University, Industrial chemistry, Department of Chemical and Metallurgical Engineering, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Materials science Renewable Energy Sustainability and the Environment Supporting electrolyte Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Flow battery Redox Organic electroactive material 0104 chemical sciences Anode Solvent chemistry.chemical_compound Membrane Chemical engineering chemistry Nonaqueous redox flow battery Electrical and Electronic Engineering Physical and Theoretical Chemistry Electrochemical energy storage 0210 nano-technology Acetonitrile |
| Popis: | Funding Information: The work was financially supported by the National Natural Science Foundation of China ( 21636007 ). Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved. Azobenzene (azoB) is a promising anode active material for nonaqueous redox flow battery (NARFB), but the battery performance assembled with azoB is rather poor. Here, we show that the rate performance of NARFB with azoB and 2,5-di-tert-butyl-1-methoxy-4-[2′-methoxyethoxy] benzene (DBMMB) as anolyte and catholyte active materials can be significantly enhanced by optimizing the solvent, supporting electrolyte, and membrane. The synergistic interaction among active materials, solvent (acetonitrile), supporting electrolyte (tetraethylammonium bis(trifluoromethylsulfonyl)imide), and membrane (Daramic 175) contributes to the high battery performance. It exhibits an energy efficiency of 63.5% even at an ultra-high current density of 100 mA cm−2. Furthermore, the battery delivers a peak power density of 336 mW cm−2 at the current density of 240 mA cm−2 with 0.25 M active materials, which is a new benchmark for NARFBs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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