skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Rebalancing electrolytes in redox flow battery systems

Abstract

Embodiments of redox flow battery rebalancing systems include a system for reacting an unbalanced flow battery electrolyte with a rebalance electrolyte in a first reaction cell. In some embodiments, the rebalance electrolyte may contain ferrous iron (Fe.sup.2+) which may be oxidized to ferric iron (Fe.sup.3+) in the first reaction cell. The reducing ability of the rebalance reactant may be restored in a second rebalance cell that is configured to reduce the ferric iron in the rebalance electrolyte back into ferrous iron through a reaction with metallic iron.

Inventors:
;
Publication Date:
Research Org.:
Enervault Corporation, Sunnyvale, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1166016
Patent Number(s):
8,916,281
Application Number:
13/433,189
Assignee:
Enervault Corporation (Sunnyvale, CA)
DOE Contract Number:  
OE0000225
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Mar 28
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Chang, On Kok, and Pham, Ai Quoc. Rebalancing electrolytes in redox flow battery systems. United States: N. p., 2014. Web.
Chang, On Kok, & Pham, Ai Quoc. Rebalancing electrolytes in redox flow battery systems. United States.
Chang, On Kok, and Pham, Ai Quoc. 2014. "Rebalancing electrolytes in redox flow battery systems". United States. https://www.osti.gov/servlets/purl/1166016.
@article{osti_1166016,
title = {Rebalancing electrolytes in redox flow battery systems},
author = {Chang, On Kok and Pham, Ai Quoc},
abstractNote = {Embodiments of redox flow battery rebalancing systems include a system for reacting an unbalanced flow battery electrolyte with a rebalance electrolyte in a first reaction cell. In some embodiments, the rebalance electrolyte may contain ferrous iron (Fe.sup.2+) which may be oxidized to ferric iron (Fe.sup.3+) in the first reaction cell. The reducing ability of the rebalance reactant may be restored in a second rebalance cell that is configured to reduce the ferric iron in the rebalance electrolyte back into ferrous iron through a reaction with metallic iron.},
doi = {},
url = {https://www.osti.gov/biblio/1166016}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 23 00:00:00 EST 2014},
month = {Tue Dec 23 00:00:00 EST 2014}
}

Works referenced in this record:

Catalyst surfaces for the chromous/chromic redox couple
patent, March 1980


Catalyst surfaces for the chromous/chromic REDOX couple
patent, June 1981


Zinc halogen battery electrolyte compositions with bismuth additive
patent, December 1981


Redox battery
patent, December 1982


Chrome-halogen energy storage device and system
patent, January 1983


Electro-chemical cells
patent, March 1983


Chromium electrodes for REDOX cells
patent, June 1984


Electrode for flowcell
patent, January 1985


Operation of microbial fuel cells
patent, March 1987


Carbon monoxide-oxygen fuel cell
patent, December 1987


Process for producing electrolyte for redox cell
patent, March 1988


Metal-halogen energy storage device and system
patent, November 1988


All-vanadium redox battery
patent, November 1988


Energy storing apparatus
patent, January 1989


Electrolytes for redox flow batteries
patent, March 1989


Redox battery
patent, November 1989


Friction welded battery component
patent, July 1990


Apparatus and method for regenerating electrolyte of a redox flow battery
patent, September 1990


Method for producing vanadium electrolytic solution
patent, October 1993


Rebalance cell for a Cr/Fe redox storage system
patent, November 1993


End block constructions for batteries
patent, May 1994


Redox battery
patent, June 1994


Flow battery
patent, November 1994


Method for producing vanadium electrolytic solution
patent, November 1994


Dual flow aluminum hydrogen peroxide battery
patent, August 1995


Method for producing high purity vanadium electrolytic solution
patent, December 1996


Module for an aqueous battery system
patent, February 1997


Compact energy storage system
patent, March 1997


Carbon coating for an electrode
patent, May 1997


Method of electrode reconditioning
patent, July 1997


Redox battery
patent, August 1997


Flexible, conducting plastic electrode and process for its preparation
patent, September 1997


Liquid-circulating battery
patent, June 1998


Thin film composite membrane as battery separator
patent, August 1998


Redox flow type battery
patent, December 1998


Thin film composite membrane as battery separator
patent, June 1999


Device containing solar cell panel and storage battery
patent, December 1999


Electrolytic and fuel cell arrangements
patent, March 2000


Method for the fabrication of electrochemical cells
patent, July 2000


Carbon-reinforced electrode and method of making same
patent, August 2000


Battery circulation system with improved four-way valve
patent, June 2001


Battery diaphragm
patent, October 2002


Redox flow battery system and cell stack
patent, November 2002


Carbon electrode material for a vanadium-based redox-flow battery
patent, January 2003


Electrolyte tank and manufacturing method thereof
patent, July 2004


Process for producing vanadyl/vanadous sulphate
patent, July 2004


Redox flow battery
patent, July 2004


Battery with bifunctional electrolyte
patent, January 2006


Transformerless static voltage inverter for battery systems
patent, May 2006


Polymer electrolytes crosslinked by ultraviolet radiation
patent, June 2006


Polymer electrolyte with aromatic sulfone crosslinking
patent, June 2006


Method for operating redox flow battery system
patent, June 2006


Crosslinked polymer
patent, September 2006


Method for controlling the ferric ion content of a plating bath containing iron
patent, January 2007


Method for retrofitting wind turbine farms
patent, June 2007


Electrolyte for redox flow battery, and redox flow battery
patent, August 2007


Reinforced polymer electrolyte membrane
patent, August 2007


Bromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam
patent, September 2007


Load leveling battery and methods therefor
patent, September 2007


Battery with gelled electrolyte
patent, November 2007


Electrode
patent, February 2008


Reinforced polymer electrolyte membrane
patent, August 2008


Inherently safe redox flow battery storage system
patent, April 2009


Redox flow battery
patent, May 2009


Power system utilizing flow batteries
patent, July 2009


Cell stack for redox flow battery, and redox flow battery
patent, March 2010


Method for designing redox flow battery system
patent, April 2010


Vanadium redox battery incorporating multiple electrolyte reservoirs
patent, June 2010


Redox flow battery system for distributed energy storage
patent, October 2010


Methods for coupling an energy storage system to a variable energy supply system
patent, April 2011


Redox flow cell
patent, April 2011


Vanadium halide redox flow battery
patent, July 2011


Electrolyte flow configuration for a metal-halogen flow battery
patent, March 2012


Metal electrode assembly for flow batteries
patent, June 2012


Electrolyte compositions
patent, December 2012


Quenching system
patent, September 2013


Four-way valve for battery circulation system
patent-application, December 2001


System and method for providing electric power
patent-application, January 2003


Leak sensor for flowing electrolyte batteries
patent-application, January 2003


Multilayer electrode
patent-application, September 2003


Fluid electrical connected flow-through electrochemical cells, system and method
patent-application, June 2004


Cell frame for redox flow cell and redox flow cell
patent-application, September 2004


Cell frame for redox-flow cell and redox-flow cell
patent-application, October 2004


Cell stack for flow cell
patent-application, December 2004


Vanadium redox battery electrolyte
patent-application, December 2004


Redox cell with non-selective permionic separator
patent-application, April 2005


System for storing and/or transforming energy from sources at variable voltage and frequency
patent-application, April 2005


Redox flow battery
patent-application, July 2005


Method for operating redox flow battery and redox flow battery cell stack
patent-application, July 2005


Metal halide redox flow battery
patent-application, November 2005


Vanadium redox flow battery electrolyte-use amorphous solid composition
patent-application, December 2005


Battery with bifunctional electrolyte
patent-application, March 2006


Novel vanadium halide redox flow battery
patent-application, August 2006


Process for the production of activated carbon
patent-application, January 2007


Vanadium redox battery cell stack
patent-application, March 2007


Perfluorinated Membranes and Improved Electrolytes for Redox Cells and Batteries
patent-application, November 2008


Electrochemical Power Source Designs and Components
patent-application, December 2008


Secondary Battery, Power Supply System Using Same and Usage of Power Supply System
patent-application, January 2009


Method for Operating Redox Flow Battery and Redox Flow Battery Cell Stack
patent-application, August 2009


Electrode for Use in a Deionization Apparatus and Method of Making the Same
patent-application, August 2009


Stable Power Supplying Apparatus
patent-application, September 2009


Wind Power Generation System Of A Type Provided With Power Storage System
patent-application, December 2009


Redox Flow Battery System for Distributed Energy Storage
patent-application, January 2010


High Energy Density Redox Flow Device
patent-application, February 2010


Electrochemical Cell Stack
patent-application, April 2010


Flexible Multi-Walled Tubing Assembly
patent-application, April 2001


Method and Apparatus for Determining State of Charge of a Battery
patent-application, April 2010


Methods for Bonding Porous Flexible Membranes Using Solvent
patent-application, April 2010


Magnetic Current Collector
patent-application, April 2010


Level Sensor for Conductive Liquids
patent-application, April 2010


Counter-Flow Membraneless Fuel Cell
patent-application, May 2010


Cell Stack for Flowing Electrolyte Battery
patent-application, May 2010


Common Module Stack Component Design
patent-application, June 2010


Methods for the Preparation and Purification of Electrolytes for Redox Flow Batteries
patent-application, June 2010


Redox Flow Battery
patent-application, July 2010


Redox Battery
patent-application, August 2010


Electrode for a Charge Storage Device and Method of Manufacture
patent-application, September 2010


Methods for the Preparation of Electrolytes for Chromium-Iron Redox Flow Batteries
patent-application, October 2010


Metal-Air Low Temperature Ionic Liquid Cell
patent-application, November 2010


Electrochemical Cells Connected in Fluid Flow Series
patent-application, December 2010


Fuel System Using Redox Flow Battery
patent-application, December 2010


Metal-Air Flow Cell
patent-application, December 2010


Polyoxometalate Flow-Cell Power System
patent-application, January 2011


Redox Flow Battery System for Distributed Energy Storage
patent-application, February 2011


Preparation of Flow Cell Battery Electrolytes for Raw Materials
patent-application, March 2011


Control System for a Flow Cell Battery
patent-application, March 2011


Electrolyte Compositions
patent-application, March 2011


Hydrogen Chlorine Level Detector
patent-application, April 2011


Buck-Boost Circuit
patent-application, April 2011


Methods of producing hydrochloric acid from hydrogen gas and chlorine gas
patent-application, April 2011


Optical Leak Detection Sensor
patent-application, April 2011


Redox Flow Cell Rebalancing
patent-application, April 2011


Electrochemical Cell with Flow Management System
patent-application, April 2011


Redox Flow Battery System for Distributed Energy Storage
patent-application, May 2011


High Energy Density Redox Flow Device
patent-application, August 2011


Redox Flow Battery
patent-application, August 2011


Electrochemical Cell with Diffuser
patent-application, August 2011


Organic electrolyte solution and redox flow battery including the same
patent-application, August 2011


Redox membrane-based flow fuel cell
patent-application, August 2011


Electrochemical Cell, and Particularly a Cell with Electrodeposited Fuel
patent-application, August 2011


Apparatus for coupling an energy storage system to a variable energy supply system
patent-application, August 2011


Integral Manifold
patent-application, August 2011


Cascade Redox Flow Battery Systems
patent-application, September 2011


Metal Electrode Assembly for Flow Batteries
patent-application, September 2011


High Performance Flow Battery
patent-application, October 2011


Metal-Air Electrochemical Cell with High Energy Efficiency Mode
patent-application, October 2011


Multiple Transition Flow Field and Method
patent-application, November 2011


Method and Apparatus for Controlling a Hybrid Power System
patent-application, November 2011


Managing Renewable Power Generation
patent-application, November 2011


Electrode for a Flow Battery
patent-application, November 2011


Metal-Air Cell With Performance Enhancing Additive
patent-application, November 2011


System And Method For Transporting Energy
patent-application, November 2011


Redox Flow Battery and Method for Operating the Battery Continuously in a Long Period of Time
patent-application, December 2011


Tuned Hydrophobicity
patent-application, December 2011


20110309382
patent-application, December 2011


Integrated System for Electrochemical Energy Storage System
patent-application, December 2011


Method for fabrication of functionalized graphene reinforced composite conducting plate
patent-application, December 2011


Electrochemical Cell with Stepped Scaffold Fuel Anode
patent-application, December 2011


Metal Halogen Electrochemical Cell System
patent-application, December 2011


Amphoteric Ion Exchange Membranes
patent-application, December 2011


Metal-Air Room-Temperature Ionic Liquid Electrochemical Cell with Liquid Fuel
patent-application, January 2012


Electrochemical Cell with Catch Tray
patent-application, January 2012


Electrically Rechargeable, Metal-Air Battery Systems and Methods
patent-application, January 2012


Bifunctional (rechargeable) air electrodes
patent-application, February 2012


Flowing Electrolyte Battery With Electric Potential Neutralization
patent-application, February 2012


Redox Flow Battery
patent-application, February 2012


Flow Battery Systems
patent-application, March 2012


Electrochemical Cell with Additive Modulator
patent-application, March 2012


Flow Battery With Radial Electrolyte Distribution
patent-application, March 2012


Metal-Free Aqueous Electrolyte Energy Storage Device
patent-application, March 2012


Electrochemical Cell System with a Progressive Oxygen Evolving Electrode/ Fuel Electrode
patent-application, March 2012


Fe-V Redox Flow Batteries
patent-application, March 2012


Redox Flow Batteries Having Multiple Electroactive Elements
patent-application, March 2012


Redox Flow Batteries Based on Supporting Solutions Containing Chloride
patent-application, March 2012


Electrochemical Energy Storage Systems and Methods
patent-application, March 2012


Redox Flow Batteries Based on Supporting Solutions Comprising a Mixture of Acids
patent-application, May 2012


Redox Flow Battery
patent-application, May 2012


Method for Storing Electrical Energy in Ionic Liquids
patent-application, May 2012


Electrochemical Energy System
patent-application, May 2012


Redox Flow Battery
patent-application, May 2012


Multi-Mode Charging of Hierarchical Anode
patent-application, June 2012


Frame of a Cell of a Redox Flow Battery
patent-application, June 2012


Systems and Methods for Redox Flow Battery Scalable Modular Reactant Storage
patent-application, June 2012


Method for Processing a Porous Article
patent-application, July 2012


Redox Flow Battery
patent-application, July 2012


Redox Flow Battery
patent-application, July 2012


Redox Flow Battery
patent-application, July 2012


Quenching System
patent-application, July 2012


Flow Battery Start-up and Recovery Management
patent-application, July 2012


Communications System
patent-application, July 2012


Field Response System
patent-application, July 2012


Recombinator for Flowing Electrolyte Battery
patent-application, August 2012


Electrochemical Systems and Methods of Operating Same
patent-application, November 2012


Energy Storage and Generation Systems
patent-application, November 2012


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


Vanadium Flow Cell
patent-application, April 2013


Redox Flow Battery and Method of Operating the Same
patent-application, June 2013


Quenching System
patent-application, January 2014


Electrochemical Energy Storage Systems and Methods Featuring Large Negative Half-Cell Potentials
patent-application, January 2014


Investigation of Factors Affecting Performance of the Iron-Redox Battery
journal, January 1981


Synthesis of carbon nanotubes in graphite microchannels in gas-flow and submerged-in-liquid reactors
journal, August 2010


Modification of Daramic, microporous separator, for redox flow battery applications
journal, December 1992


Scale-up studies of an Fe/Cr redox flow battery based on shunt current analysis
journal, July 1992


Development of bipolar plates for fuel cells from graphite filled wet-lay material and a thermoplastic laminate skin layer
journal, March 2007


Synthesis of nanosized zirconium carbide by a sol–gel route
journal, January 2007


Effect of pulsed flow on the performance of carbon felt electrode
journal, January 2002


Advancements in the Direct Hydrogen Redox Fuel Cell
journal, January 2008


A Mathematical Model for the Iron/Chromium Redox Battery
journal, January 1984


Reticulated vitreous carbon as an electrode material
journal, January 2004


Hydrodynamic Behavior of a Filter-Press Electrochemical Reactor with Carbon Felt As a Three-Dimensional Electrode
journal, November 1998


Novel bipolar electrodes for battery applications
journal, January 2002


Carbon Fiber Electrode for Redox Flow Battery
journal, January 1987


Possible use of vanadium redox-flow batteries for energy storage in small grids and stand-alone photovoltaic systems
journal, March 2004


Chemical and Electrochemical Behavior of the Cr(III)/Cr(II) Half-Cell in the Iron-Chromium Redox Energy Storage System
journal, January 1985


Ligand Bridging in the Oxidation of Chromium(II) at Mercury Electrodes.
journal, May 1964


Electrical leakage currents in bipolar cell stacks
journal, March 1980


The photochemical oxidation of ascorbic acid in solutions containing oxalic acid. II.—Mechanism of the reaction
journal, February 1956


Pressure electrical contact improved by carbon black paste
journal, March 2004


Behaviour of the Cr(III)/Cr(II) reaction on goldgraphite electrodes. Application to redox flow storage cell
journal, October 1991


Optimization studies on a Fe/Cr redox flow battery
journal, January 1992


Electrocatalysis of redox reactions by metal nanoparticles on graphite electrodes
journal, May 2001


Bipolar plates for PEM fuel cells
journal, May 2003


Overcharge in the vanadium redox battery and changes in electrical resistivity and surface functionality of graphite-felt electrodes
journal, November 1994


Injection moulding of graphite composite bipolar plates
journal, March 2006


Permeation of vanadium cations through anionic and cationic membranes
journal, March 1985


Treatment of Waste Pickling Liquors: Process Synthesis and Economic Analysis
journal, May 2006


Redox flow cells for energy conversion
journal, September 2006


A dynamic performance model for redox-flow batteries involving soluble species
journal, November 2008