Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries

Donghan Xu; Cuijuan Zhang; Yihan Zhen; Yongdan Li

doi:10.1021/acsami.1c05564

Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries

Donghan Xu, Cuijuan Zhang^*, Yihan Zhen, Yongdan Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

19 Citations (Scopus)

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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.

Original language	English
Pages (from-to)	35579–35584
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	13
Issue number	30
Early online date	23 Jul 2021
DOIs	https://doi.org/10.1021/acsami.1c05564
Publication status	Published - 4 Aug 2021
MoE publication type	A1 Journal article-refereed

Funding

This work was financially supported by the National Natural Science Foundation of China (21636007).

Keywords

electrochemical energy storage
nitrobenzene
nonaqueous electrolyte
redox flow battery
redox-active organic molecules

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsami.1c05564

CHEM_Xu_et_al_Liquid_Nitrobenzene-Based_Anolyte_2021_ACS_Appl_Mater_InterfacesAccepted author manuscript, 1.37 MBLicence: Unspecified

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@article{bee75daff816464bbb1fb03f5023485d,

title = "Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries",

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.",

keywords = "electrochemical energy storage, nitrobenzene, nonaqueous electrolyte, redox flow battery, redox-active organic molecules",

author = "Donghan Xu and Cuijuan Zhang and Yihan Zhen and Yongdan Li",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China (21636007). Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

year = "2021",

month = aug,

day = "4",

doi = "10.1021/acsami.1c05564",

language = "English",

volume = "13",

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journal = "ACS Applied Materials and Interfaces",

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publisher = "American Chemical Society",

number = "30",

}

TY - JOUR

T1 - Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries

AU - Xu, Donghan

AU - Zhang, Cuijuan

AU - Zhen, Yihan

AU - Li, Yongdan

PY - 2021/8/4

Y1 - 2021/8/4

N2 - 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.

AB - 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.

KW - electrochemical energy storage

KW - nitrobenzene

KW - nonaqueous electrolyte

KW - redox flow battery

KW - redox-active organic molecules

UR - https://www.scopus.com/pages/publications/85112320923

U2 - 10.1021/acsami.1c05564

DO - 10.1021/acsami.1c05564

M3 - Article

AN - SCOPUS:85112320923

SN - 1944-8244

VL - 13

SP - 35579

EP - 35584

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 30

ER -

Liquid Nitrobenzene-Based Anolyte Materials for High-Current and-Energy-Density Nonaqueous Redox Flow Batteries

Abstract

Funding

Keywords

UN SDGs

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