In situ bulk magnetization measurements reveal the state of charge of redox flow batteries.

Autor:	Zhao EW; Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK. cpg27@cam.ac.uk.; Magnetic Resonance Research Centre, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands., Shellard EJK; Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK. cpg27@cam.ac.uk., Klusener PAA; Shell Global Solutions International B.V., Shell Technology Centre Amsterdam, Grasweg 31, 1031 HW Amsterdam, Netherlands., Grey CP; Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK. cpg27@cam.ac.uk.
Jazyk:	angličtina
Zdroj:	Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2022 Jan 27; Vol. 58 (9), pp. 1342-1345. Date of Electronic Publication: 2022 Jan 27.
DOI:	10.1039/d1cc01895g
Abstrakt:	We report two methods that use either NMR spectroscopy or direct magnetic susceptibility measurements for in situ (strictly online ) determination of the state of charge of redox flow batteries. These methods are demonstrated on the inorganic, redox-active potassium ferro/ferri cyanide catholyte cycled against 2,6-dihydroxyanthraquinone as the anolyte in a full cell, and should be applicable to a wide range of redox couples, provided that the magnetization of the electrolyte solution depends on its oxidation state.
Databáze:	MEDLINE
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