ArticleEES batteries2026
Revalidating KCrPDTA for aqueous redox flow batteries.
Article in EES batteries, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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9 authors.
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Abstract
Inconsistent reporting practices and single-cell performance claims complicate the comparison of redox flow battery electrolytes across laboratories. Reproducing reported performance metrics for KCrPDTA-based batteries proved challenging, motivating systematic revalidation of KCrPDTA synthesis and characterization, and testing in cells. We identify three compounding variability sources: (i) hydration state inconsistencies in isolated KCrPDTA introducing molar mass errors of up to 4% that propagate into state-of-charge calculations, (ii) impurities eliminated by selective KCrPDTA crystal isolation prior to complete evaporation of the reaction mixture, and (iii) cell assembly artefacts including membrane shorting which produces persistently low coulombic efficiencies unrelated to electrolyte properties. Using a standardized protocol across 22 fuel-cell-type KCrPDTA-K
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