Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2021-08-04
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Mcode
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Language
en
Pages
6
35579–35584
35579–35584
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ACS Applied Materials and Interfaces, Volume 13, issue 30
Abstract
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.Description
Funding Information: This work was financially supported by the National Natural Science Foundation of China (21636007). Publisher Copyright: © 2021 American Chemical Society.
Keywords
electrochemical energy storage, nitrobenzene, nonaqueous electrolyte, redox flow battery, redox-active organic molecules
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Citation
Xu, D, Zhang, C, Zhen, Y & Li, Y 2021, ' Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries ', ACS Applied Materials and Interfaces, vol. 13, no. 30, pp. 35579–35584 . https://doi.org/10.1021/acsami.1c05564
