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Distribution of electrolytes in a flow battery

United States Patent

9,853,310
December 26, 2017
View the Complete Patent at the US Patent & Trademark Office
A method of determining a distribution of electrolytes in a flow battery includes providing a flow battery with a fixed amount of fluid electrolyte having a common electrochemically active specie, a portion of the fluid electrolyte serving as an anolyte and a remainder of the fluid electrolyte serving as a catholyte. An average oxidation state of the common electrochemically active specie is determined in the anolyte and the catholyte and, responsive to the determined average oxidation state, a molar ratio of the common electrochemically active specie between the anolyte and the catholyte is adjusted to increase an energy discharge capacity of the flow battery for the determined average oxidation state.
Darling; Robert Mason (South Windsor, CT), Smeltz; Andrew (Manchester, CT), Junker; Sven Tobias (Kensington, CT), Perry; Michael L. (Glastonbury, CT)
UNITED TECHNOLOGIES CORPORATION (Farmington, CT)
15/ 107,499
20160315339
December 23, 2013
STATEMENT REGARDING GOVERNMENT SUPPORT This invention was made with government support under contract DE-AR 0000149 awarded by the United States Department of Energy. The government has certain rights in the invention.