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Redox flow batteries

Decoupled architecture enables pH decoupling

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To date, organic-based redox flow batteries (RFBs) have relatively low open-circuit voltages (OCVs), limiting their commercial viability. Achieving higher OCVs with pH-decoupled RFBs faces challenges due to severe ion crossover, prompting new research that proposes an acid–base regeneration cell to address this limitation.

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Fig. 1: Examples of redox couples used in aqueous redox flow batteries (ARFBs) and the new pH-decoupled ARFB design.

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Authors and Affiliations

  1. Largo Clean Energy, Wilmington, MA, USA

    Mike L. Perry

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  1. Mike L. Perry
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Correspondence to Mike L. Perry.

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Competing interests

M.L.P. is employed by Largo Clean Energy, which is an RFB system developer.

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Perry, M.L. Decoupled architecture enables pH decoupling. Nat Energy 9, 367–368 (2024). https://doi.org/10.1038/s41560-024-01481-2

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  • DOI: https://doi.org/10.1038/s41560-024-01481-2

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