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Title: Aqueous electrolytes for redox flow battery systems

An aqueous redox flow battery system includes an aqueous catholyte and an aqueous anolyte. The aqueous catholyte may comprise (i) an optionally substituted thiourea or a nitroxyl radical compound and (ii) a catholyte aqueous supporting solution. The aqueous anolyte may comprise (i) metal cations or a viologen compound and (ii) an anolyte aqueous supporting solution. The catholyte aqueous supporting solution and the anolyte aqueous supporting solution independently may comprise (i) a proton source, (ii) a halide source, or (iii) a proton source and a halide source.
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Issue Date:
OSTI Identifier:
Battelle Memorial Institute PNNL
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2015 Apr 17
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Stabilized electrolyte solutions, methods of preparation thereof and redox cells and batteries containing stabilized electrolyte solutions
patent, November 2000

Aqueous redox flow batteries featuring improved cell design characteristics
patent, April 2014

Aqueous redox flow batteries comprising metal ligand coordination compounds
patent, June 2014

Secondary battery with a radical compound active material
patent-application, August 2005

Organic Non-Aqueous Cation-Based Redox Flow Batteries
patent-application, August 2013

Electrode Active Material and Secondary Battery
patent, February 2014

Hybrid Anodes for Redox Flow Batteries
patent-application, May 2014

Materials For Use With Aqueous Redox Flow Batteries and Related Methods and Systems
patent-application, August 2015

Electrochemical Properties of an All-Organic Redox Flow Battery Using 2,2,6,6-Tetramethyl-1-Piperidinyloxy and N-Methylphthalimide
journal, January 2011
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Rechargeable Organic Radical Battery with Electrospun, Fibrous Membrane-Based Polymer Electrolyte
journal, January 2007
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A redox shuttle to facilitate oxygen reduction in the lithium air battery
journal, January 2013

A Total Organic Aqueous Redox Flow Battery Employing a Low Cost and Sustainable Methyl Viologen Anolyte and 4-HO-TEMPO Catholyte
journal, December 2015
  • Liu, Tianbiao; Wei, Xiaoliang; Nie, Zimin
  • Advanced Energy Materials, Vol. 6, Issue 3, 1501449
  • DOI: 10.1002/aenm.201501449

Viologens as Charge Carriers in a Polymer-Based Battery Anode
journal, July 2013
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TEMPO/Viologen Electrochemical Heterojunction for Diffusion-Controlled Redox Mediation: A Highly Rectifying Bilayer-Sandwiched Device Based on Cross-Reaction at the Interface between Dissimilar Redox Polymers
journal, March 2014
  • Tokue, Hiroshi; Oyaizu, Kenichi; Sukegawa, Takashi
  • ACS Applied Materials & Interfaces, Vol. 6, Issue 6, p. 4043-4049
  • DOI: 10.1021/am405527y

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