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

Title: Cascade redox flow battery systems

Abstract

A reduction/oxidation ("redox") flow battery system includes a series of electrochemical cells arranged in a cascade, whereby liquid electrolyte reacts in a first electrochemical cell (or group of cells) before being directed into a second cell (or group of cells) where it reacts before being directed to subsequent cells. The cascade includes 2 to n stages, each stage having one or more electrochemical cells. During a charge reaction, electrolyte entering a first stage will have a lower state-of-charge than electrolyte entering the nth stage. In some embodiments, cell components and/or characteristics may be configured based on a state-of-charge of electrolytes expected at each cascade stage. Such engineered cascades provide redox flow battery systems with higher energy efficiency over a broader range of current density than prior art arrangements.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Enervault Corporation, Sunnyvale, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149689
Patent Number(s):
8785023
Application Number:
12/986,892
Assignee:
Enervault Corporation (Sunnyvale, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
OE0000225
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jan 07
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Horne, Craig R., Kinoshita, Kim, Hickey, Darren B., Sha, Jay E., and Bose, Deepak. Cascade redox flow battery systems. United States: N. p., 2014. Web.
Horne, Craig R., Kinoshita, Kim, Hickey, Darren B., Sha, Jay E., & Bose, Deepak. Cascade redox flow battery systems. United States.
Horne, Craig R., Kinoshita, Kim, Hickey, Darren B., Sha, Jay E., and Bose, Deepak. Tue . "Cascade redox flow battery systems". United States. https://www.osti.gov/servlets/purl/1149689.
@article{osti_1149689,
title = {Cascade redox flow battery systems},
author = {Horne, Craig R. and Kinoshita, Kim and Hickey, Darren B. and Sha, Jay E. and Bose, Deepak},
abstractNote = {A reduction/oxidation ("redox") flow battery system includes a series of electrochemical cells arranged in a cascade, whereby liquid electrolyte reacts in a first electrochemical cell (or group of cells) before being directed into a second cell (or group of cells) where it reacts before being directed to subsequent cells. The cascade includes 2 to n stages, each stage having one or more electrochemical cells. During a charge reaction, electrolyte entering a first stage will have a lower state-of-charge than electrolyte entering the nth stage. In some embodiments, cell components and/or characteristics may be configured based on a state-of-charge of electrolytes expected at each cascade stage. Such engineered cascades provide redox flow battery systems with higher energy efficiency over a broader range of current density than prior art arrangements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

Patent:

Save / Share:

Works referenced in this record:

Vanadium redox battery cell stack
patent-application, March 2007


Magnetic Current Collector
patent-application, April 2010


Metal-Air Flow Cell
patent-application, December 2010


Buck-Boost Circuit
patent-application, April 2011


Optical Leak Detection Sensor
patent-application, April 2011


High Performance Flow Battery
patent-application, October 2011


Redox Flow Battery
patent-application, February 2012


Redox Flow Battery
patent-application, May 2012


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


Communications System
patent-application, July 2012


Field Response System
patent-application, July 2012


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


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


Characterization of a carbon felt electrode: structural and physical properties
journal, January 1999


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