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Title: Distribution of electrolytes in a flow battery

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.
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Patent File Date: 2013 Dec 23
Research Org:
United Technologies Corporation, Farmington, CT (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Redox battery
patent, June 1994

Electrode material for flow-through type electrolytic cell, wherein the electrode comprises carbonaceous material having at least one groove
patent, July 1997

Flow battery with interdigitated flow field
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Mediated electrochemical oxidation of organic waste materials
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Apparatus and Methods of Determination of State of Charge in a Redox Flow Battery
patent-application, August 2008

Hydrogel Barrier For Fuel Cells
patent-application, November 2008

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patent-application, November 2008

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patent-application, May 2009

Thermal Control of a Flow Cell Battery
patent-application, April 2010

Electrode Catalyst Substrate And Method For Producing The Same, And Polymer Electrolyte Fuel Cell
patent-application, December 2010

System And Method For Operating A Flow Battery System At An Elevated Temperature
patent-application, December 2012

Rebalancing Electrolytes In Redox Flow Battery Systems
patent-application, April 2013

Monitoring Electrolyte Concentrations In Redox Flow Battery Systems
patent-application, April 2013

Electrochemical Balance In A Vanadium Flow Battery
patent-application, November 2013

Influence of flow field design on the performance of a direct methanol fuel cell
journal, December 2000

The Simulation of a PEMFC with an Interdigitated Flow Field Design
book, January 2005
  • Guo, S. M.; Hutchison, David; Kanade, Takeo
  • Computational Science – ICCS 2005, p. 104-111
  • DOI: 10.1007/11428862_14

Two-phase flow model of the cathode of PEM fuel cells using interdigitated flow fields
journal, October 2000
  • He, Wensheng; Yi, Jung S.; Van Nguyen, Trung
  • AIChE Journal, Vol. 46, Issue 10, p. 2053-2064
  • DOI: 10.1002/aic.690461016

Modelling of performance of PEM fuel cells with conventional and interdigitated flow fields
journal, January 1999
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Review of bipolar plates in PEM fuel cells: Flow-field designs
journal, March 2005

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journal, September 2006
  • Ponce de Leon, C.; Frias-Ferrer, A.; Gonzalez-Garcia, J.
  • Journal of Power Sources, Vol. 160, Issue 1, p. 716-732
  • DOI: 10.1016/j.jpowsour.2006.02.095

Performance studies of PEM fuel cells with interdigitated flow fields
journal, August 2004

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