Method and system to maintain electrolyte stability for all-iron redox flow batteries

Evans, Craig E.; Song, Yang

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DOE OSTI · 1651009

Method and system to maintain electrolyte stability for all-iron redox flow batteries

Evans, Craig E.·Song, Yang

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Abstract

Methods and systems are provided which maintain the positive and negative electrolyte pH and stability of a redox flow battery through the use of electrochemical rebalancing cells. The electrochemical cells may be activated by applying an electrical load to affect changes to the pH of the electrolytes. The use of the electrochemical cells improves long term performance stability redox flow batteries by decreasing and/or eliminating Fe(OH)3 precipitation formation.

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25 ENERGY STORAGE 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Evans, Craig E., Song, Yang. 2020-06-09. Method and system to maintain electrolyte stability for all-iron redox flow batteries. https://www.osti.gov/biblio/1651009

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