Stability enhancement for all‐iron aqueous redox flow battery using iron‐3‐[bis(2‐hydroxyethyl)amino]‐2‐hydroxypropanesulfonic acid complex and ferrocyanide as redox couple

Shin, Mingyu; Noh, Chanho; Kwon, Yongchai

doi:10.1002/er.7535

Cited by 21 publications

(15 citation statements)

References 60 publications

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“…This stability in performance of ARFBs using tiron and vanadium was compared with that of VRFBs, which was not stable due to the severe crossover of vanadium ions. − Conclusively, the capacity of ARFB single cells depends on the redox reaction of tiron whose theoretical capacity is 16.08 Ah L –1 , and the utilization ratio of ARFB single cells using tiron and vanadium is about 50%, while their capacity decay rate is 0.044% per cycle, which is better than that of previously reported VRFBs including the same Nafion membrane.…”

Section: Resultsmentioning

confidence: 78%

Cost, Performance, and Sustainability of Redox Flow Batteries Using 4,5-Dihydroxy-1,3-benzenedisulfonic Acid and Vanadium Enhanced by Cross Compensation of the Activation Process

Lee

Park

Kwon

2023

ACS Sustainable Chem. Eng.

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Vanadium redox flow batteries (VRFBs) receive attention as a promising energy storage device due to high efficiency and excellent long-term durability although vanadium ore is expensive. To address this price issue, cheap quinone RFBs (QRFBs) using anthraquinone-2,7-disulfonic acid and 4,5-dihydroxy-1,3-benzenedisulfonic acid (tiron) are introduced. However, QRFBs require additional activation process of tiron. To alleviate the issues of VRFBs and QRFBs, new RFBs using vanadium and tiron as the anolyte and catholyte are suggested. This redox couple can exchange their activation process mutually. Thus, additional electrolytes are not needed, saving the considerable amount of active materials. Regarding performance, cell voltage of the new RFBs (1.2 V) is higher than that of QRFBs (0.76 V), while their capacity retention (decay rate of 0.044% cycle −1 ) is better than that of VRFBs (decay rate of 0.12% cycle −1 ). Bismuth-based catalysts further increase the energy density of new RFBs because they promote the reactivity of V 2+ /V 3+ redox reaction. Even in economic prospect, cost-normalized discharge energy density of new RFBs (0.98 Wh L −1 $ −1 ) is better than that of VRFBs (0.75 Wh L −1 $ −1 ) and QRFBs (0.15 Wh L −1 $ −1 ), confirming that RFBs using vanadium and tiron have benefits regarding cost, stability, and performance.

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Section: Resultsmentioning

confidence: 78%

Cost, Performance, and Sustainability of Redox Flow Batteries Using 4,5-Dihydroxy-1,3-benzenedisulfonic Acid and Vanadium Enhanced by Cross Compensation of the Activation Process

Lee

Park

Kwon

2023

ACS Sustainable Chem. Eng.

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“…Aqueous redox flow batteries (ARFBs) have become one of promising candidates for energy storage systems because these could offer the benefits like large capacity and long cycle life. [1][2][3][4][5] In the ARFBs, energy is chemically stored by redox reactions of two liquid electrolytes containing active material and supporting electrolyte, while they are separated by ion exchange membrane. [6][7][8][9][10][11] Regarding the supporting electrolyte included in electrolyte, instead of pure water, acidic or alkaline supporting electrolytes are regarded to increase ion conductivity facilitating charge transfer.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Redox flow batteries using cerium salts and anthraquinone‐2,7‐disulfonic acid as new redox couple dissolved in mixture solution of methanesulfonic and perchloric acids

Permatasari

Lee

Kwon

2022

Intl J of Energy Research

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Summary Aqueous redox flow batteries (ARFBs) using acidic supporting electrolytes are one of promising future batteries because the acidic supporting electrolytes can increase the solubility of active materials and their ionic conductivity, followed by energy density and efficiencies of ARFBs using these. Nevertheless, discovering proper redox couple with a high open circuit voltage (OCV) in acidic media is still challengeable because a low OCV is a main drawback of the conventional redox couples dissolved in acidic media. To increase OCV without sacrificing the solubility of active materials, a new redox couple consisting of cerium salts and anthraquinone‐2,7‐disulfonic acid (AQDS) that are dispersed in methanesulfonic acid (MSA) is suggested. With cerium salts and AQDS dissolved in acidic MSA, a high OCV of 1.45 V is achieved, while MSA affects the increases in solubility and stability of cerium salts. To further increase the solubility of AQDS and facilitate its redox reactivity, the mixture of MSA and perchloric acid (HClO4) is used as supporting electrolyte. Based on that, the solubility of AQDS is improved from 0.35 to 0.5 M, while ARFB using 1 M cerium ions and 0.5 M AQDS dissolved in the mixture solution of 4 M MSA and 1 M HClO4, shows excellent performances such as discharge capacity of 20.3 Ah L−1, energy efficiency of 86.5%, and capacity retention of ~99% over 100 cycles.

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Section: Introductionmentioning

confidence: 99%

“…As the demand for renewable energy increases, the needs for developing proper energy storage devices increases because they can solve the drawbacks of renewable energies, such as intermittent power generation and non-uniform power quality. [1][2][3] In this prospect, redox flow batteries (RFBs) can be an attractive solution. They can address the intermittent power generation and non-uniform power quality issues by storing the produced electrical power initially, and then supplying it to the electrical grid.…”

Section: Introductionmentioning

confidence: 99%

Vanadium Redox Flow Battery Using Activated Carbon Catalyst Produced from Low‐Density Polyethylene

Lim

Shin

Phae

et al. 2022

Chemistry An Asian Journal

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Carbonized and activated low-density polyethylene (LDPE) is suggested as a carbon catalyst for vanadium redox flow battery (VRFB). This carbon catalyst has many surface oxygen functional groups and a large surface area, while such benefits are achieved through activation of carbonized LDPE. According to electrochemical analysis, this carbon catalyst doped graphite felt (GF) enhances the redox reactivity of vanadium ions. More specifically, peak current density and peak potential separation for redox reaction of vanadium ions are 96.0 and 22.1% more improved than those measured by bare GF, while charge transfer resistance for the redox reactions is also improved by use of the catalyst doped GF. When performance of VRFB using this catalyst doped GF is measured, energy efficiency is 39% more improved than that measured without the catalyst. Based on that, this is revealed that new LDPE-based carbon catalyst is effective for performance improvement of VRFB.

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Stability enhancement for all‐iron aqueous redox flow battery using iron‐3‐[bis(2‐hydroxyethyl)amino]‐2‐hydroxypropanesulfonic acid complex and ferrocyanide as redox couple

Cited by 21 publications

References 60 publications

Cost, Performance, and Sustainability of Redox Flow Batteries Using 4,5-Dihydroxy-1,3-benzenedisulfonic Acid and Vanadium Enhanced by Cross Compensation of the Activation Process

Cost, Performance, and Sustainability of Redox Flow Batteries Using 4,5-Dihydroxy-1,3-benzenedisulfonic Acid and Vanadium Enhanced by Cross Compensation of the Activation Process

Redox flow batteries using cerium salts and anthraquinone‐2,7‐disulfonic acid as new redox couple dissolved in mixture solution of methanesulfonic and perchloric acids

Vanadium Redox Flow Battery Using Activated Carbon Catalyst Produced from Low‐Density Polyethylene

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