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Maximizing Vanadium Deployment in Redox Flow Batteries Through Chelation

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Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2022, 144, 39, 17753-17757
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    Maximizing Vanadium Deployment in Redox Flow Batteries Through Chelation
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    • Scott E. Waters
      Scott E. Waters
      Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309-0215, United States of America
      More by Scott E. Waters
      Orcidhttps://orcid.org/0000-0003-2596-4810
    • Casey M. Davis
      Casey M. Davis
      Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309-0215, United States of America
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    • Jonathan R. Thurston
      Jonathan R. Thurston
      Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309-0215, United States of America
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    • Michael P. Marshak*
      Michael P. Marshak
      Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309-0215, United States of America
      Renewable and Sustainable Energy Institute, Boulder, Colorado 80309-0027, United States of America
      *E-mail: [email protected]. Group Website: https://www.colorado.edu/marshakgroup/. Twitter Handle: @MarshakGroup.
      More by Michael P. Marshak
      Orcidhttps://orcid.org/0000-0002-8027-2705
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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2022, 144, 39, 17753–17757
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    https://doi.org/10.1021/jacs.2c07076
    Published September 21, 2022
    Copyright © 2022 American Chemical Society
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    Abstract

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    By tailoring the coordination sphere of vanadium to accommodate a 7-coordinate geometry, a highly soluble (>1.3 M) and reducing (−1.2 V vs Ag/AgCl) flow battery electrolyte is generated from [V(DTPA)]2–/3– (DTPA = diethylenetriaminepentaacetate). Bulk spectroelectrochemistry is performed in situ to assess material properties in both oxidized and reduced states. Flow batteries are assembled in near neutral pH conditions and operated with discharge energy densities of 12.5 Wh L–1 and high efficiency. Further, the first chelated flow battery using the same aminopolycarboxylate ligand for both electrolytes is generated. The presented batteries demonstrate comparable performance to the iron–vanadium and all-vanadium flow batteries while doubling the effective discharge energy of vanadium (Wh per mol V) and minimizing safety and operating risks, offering grid-scale energy storage alternatives.

    Copyright © 2022 American Chemical Society

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    CCDC 2182356 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/data_request/cif, or by emailing [email protected], or by contacting The Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336033.

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    Cited By

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    This article is cited by 3 publications.

    1. Mohammad R. Ghazanfari, Laura Vittadello, Stephanie Bachmann, Jakob Möbs, Rüdiger Bertermann, Niklas Restel, Felix Sauerwein, Johannes C. Vrijmoed, Johanna Heine, Ann-Christin Pöppler, Mirco Imlau, Günther Thiele. Optical and Electrical Properties of A3[VS4] (A = Na, K) Synthesized via a Straightforward and Scalable Solid-State Method. Inorganic Chemistry 2024, 63 (24) , 11030-11040. https://doi.org/10.1021/acs.inorgchem.4c00551
    2. Abdulrahman M. Alfaraidi, Dawei Xi, Nina Ni, Thomas Y. George, Tatsuhiro Tsukamoto, Roy G. Gordon, Michael J. Aziz, Richard Y. Liu. An Extremely Stable and Soluble NH2-Substituted Anthraquinone Electrolyte for Aqueous Redox Flow Batteries. ACS Applied Energy Materials 2023, 6 (24) , 12259-12266. https://doi.org/10.1021/acsaem.3c01943
    3. Ruiyong Chen. Redox Flow Batteries: Electrolyte Chemistries Unlock the Thermodynamic Limits. Chemistry – An Asian Journal 2023, 18 (1) https://doi.org/10.1002/asia.202201024
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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2022, 144, 39, 17753–17757
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.2c07076
    Published September 21, 2022
    Copyright © 2022 American Chemical Society
    Request reuse permissions

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