Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Hybrid energy storage systems utilizing redox active organic compounds

Patent ·
OSTI ID:1214115

Redox flow batteries (RFB) have attracted considerable interest due to their ability to store large amounts of power and energy. Non-aqueous energy storage systems that utilize at least some aspects of RFB systems are attractive because they can offer an expansion of the operating potential window, which can improve on the system energy and power densities. One example of such systems has a separator separating first and second electrodes. The first electrode includes a first current collector and volume containing a first active material. The second electrode includes a second current collector and volume containing a second active material. During operation, the first source provides a flow of first active material to the first volume. The first active material includes a redox active organic compound dissolved in a non-aqueous, liquid electrolyte and the second active material includes a redox active metal.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
9,130,218
Application Number:
13/439,083
OSTI ID:
1214115
Country of Publication:
United States
Language:
English

References (6)

Electrochemical Properties of an All-Organic Redox Flow Battery Using 2,2,6,6-Tetramethyl-1-Piperidinyloxy and N-Methylphthalimide journal January 2011
Non-aqueous chromium acetylacetonate electrolyte for redox flow batteries journal November 2010
Non-aqueous manganese acetylacetonate electrolyte for redox flow batteries journal July 2011
Non-aqueous vanadium acetylacetonate electrolyte for redox flow batteries journal December 2009
Semi-Solid Lithium Rechargeable Flow Battery journal May 2011
Anthraquinone with tailored structure for a nonaqueous metal–organic redox flow battery journal January 2012