skip to main content
OSTI.GOV 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:
; ; ; ;
Publication Date:
Research Org.:
Enervault Corporation, Sunnyvale, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149689
Patent Number(s):
8,785,023
Application Number:
12/986,892
Assignee:
Enervault Corporation (Sunnyvale, CA) NETL
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. doi:. 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 = {Tue Jul 22 00:00:00 EDT 2014},
month = {Tue Jul 22 00:00:00 EDT 2014}
}

Patent:

Save / Share:

Works referenced in this record:

Redox Flow Battery
patent-application, May 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

  • Chieng, S. C.; Kazacos, M.; Skyllas-Kazacos, M.
  • Journal of Membrane Science, Vol. 75, Issue 1-2, p. 81-91
  • DOI: 10.1016/0376-7388(92)80008-8

Development of a 0.1 kW power accumulation pilot plant based on an Fe/Cr redox flow battery Part I. Considerations on flow-distribution design
journal, March 1994


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

  • Dollé, Mickael; Gosset, Dominique; Bogicevic, Christine
  • Journal of the European Ceramic Society, Vol. 27, Issue 4, p. 2061-2067
  • DOI: 10.1016/j.jeurceramsoc.2006.06.005

Reticulated vitreous carbon as an electrode material
journal, January 2004


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


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


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


Redox flow cells for energy conversion
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