A nonaqueous organic redox flow battery using multi-electron quinone molecules
A nonaqueous organic redox flow battery using multi-electron quinone molecules
Organic redox flow batteries are promising energy storage devices due to their moderately low-cost and scalability. This paper introduces a new multi-electron redox active material, tetra-aminoanthraquinone (DB-1) that is capable of forming cations with an oxidation state of 4+, yielding one of the highest electrode potentials (up to 4.4 V vs. Li) and the largest multi-electron transfer (ca. 4 e). Computational calculations using density functional theory reveal that the DB-1 molecule has narrower HOMO-LUMO band gaps (< 3 eV) than similar molecules (> 3.9 eV). Stable charge-discharge cycling performance of this organic molecule is observed with high energy efficiencies (ca. 71 %) at a relatively high current density of 20 mA cm2 over 50 cycles, demonstrating the marked potential of DB-1 for future redox flow battery applications.
energy storage device, multi-electron quinone molecule, nonaqueous redox flow battery, organic redox flow battery
Pahlevaninezhad, Maedeh
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Leung, Pui ki K
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Quijano Velasco, Pablo
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Pahlevani, Majid
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Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Roberts, E.
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Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
17 May 2021
Pahlevaninezhad, Maedeh
7ee48085-280f-4911-8e68-bba3efde49fb
Leung, Pui ki K
71c40c3f-3bbf-42ea-b850-5516d46891df
Quijano Velasco, Pablo
099402d3-bfac-4635-8d07-917a69add99d
Pahlevani, Majid
1c4ce939-74d0-4f9b-a89b-225994cd0728
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Roberts, E.
a070df70-c3a3-4fc5-b442-44a56a77657e
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Pahlevaninezhad, Maedeh, Leung, Pui ki K, Quijano Velasco, Pablo, Pahlevani, Majid, Walsh, Frank, Roberts, E. and Ponce De Leon Albarran, Carlos
(2021)
A nonaqueous organic redox flow battery using multi-electron quinone molecules.
Journal of Power Sources, 500, [229942].
(doi:10.1016/j.jpowsour.2021.229942).
Abstract
Organic redox flow batteries are promising energy storage devices due to their moderately low-cost and scalability. This paper introduces a new multi-electron redox active material, tetra-aminoanthraquinone (DB-1) that is capable of forming cations with an oxidation state of 4+, yielding one of the highest electrode potentials (up to 4.4 V vs. Li) and the largest multi-electron transfer (ca. 4 e). Computational calculations using density functional theory reveal that the DB-1 molecule has narrower HOMO-LUMO band gaps (< 3 eV) than similar molecules (> 3.9 eV). Stable charge-discharge cycling performance of this organic molecule is observed with high energy efficiencies (ca. 71 %) at a relatively high current density of 20 mA cm2 over 50 cycles, demonstrating the marked potential of DB-1 for future redox flow battery applications.
Text
A nonaqueous organic RFB using multi-electron quinine molecules
- Accepted Manuscript
More information
Accepted/In Press date: 18 April 2021
e-pub ahead of print date: 17 May 2021
Published date: 17 May 2021
Additional Information:
Funding Information:
The authors acknowledge funding received from the Canada Foundation for Innovation ( CFI JELF #32613 ), the Natural Sciences and Engineering Research Council of Canada ( NSERC CREATE 495455–2017 and RGPIN-2018-03725 ), the STFC Batteries Network ( ST/R006873/1 ) and the European Union's Horizon 2020 (SPIRE) initiative under grant agreement no. 768789 .
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords:
energy storage device, multi-electron quinone molecule, nonaqueous redox flow battery, organic redox flow battery
Identifiers
Local EPrints ID: 448704
URI: http://eprints.soton.ac.uk/id/eprint/448704
ISSN: 0378-7753
PURE UUID: 3c9d4741-cd68-483c-b471-cf45ddb686f1
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Date deposited: 30 Apr 2021 16:33
Last modified: 17 Mar 2024 06:31
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Contributors
Author:
Maedeh Pahlevaninezhad
Author:
Pui ki K Leung
Author:
Pablo Quijano Velasco
Author:
Majid Pahlevani
Author:
E. Roberts
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