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公开(公告)号：US20220255107A1
公开(公告)日：2022-08-11
申请号：US17727904
申请日：2022-04-25
发明人： Arthur J. Esswein , John Goeltz , Desiree Amadeo
摘要： Stable solutions comprising high concentrations of charged coordination complexes, including iron hexacyanides are described, as are methods of preparing and using same in chemical energy storage systems, including flow battery systems. The use of these compositions allows energy storage densities at levels unavailable by other iron hexacyanide systems.
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公开(公告)号：US12009562B2
公开(公告)日：2024-06-11
申请号：US17727904
申请日：2022-04-25
发明人： Arthur J. Esswein , John Goeltz , Desiree Amadeo
摘要： Stable solutions comprising high concentrations of charged coordination complexes, including iron hexacyanides are described, as are methods of preparing and using same in chemical energy storage systems, including flow battery systems. The use of these compositions allows energy storage densities at levels unavailable by other iron hexacyanide systems.
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公开(公告)号：US10418647B2
公开(公告)日：2019-09-17
申请号：US15090506
申请日：2016-04-04
IPC分类号： H01M8/0258 , H01M8/18 , H01M4/96 , H01M8/0228
摘要： Productive electrochemical reactions can often occur most effectively in proximity to a separator dividing an electrochemical cell into two half-cells. Parasitic reactions can often occur at locations more removed from the separator. Parasitic reactions are generally undesirable in flow batteries and other electrochemical systems, since they can impact operating performance. Flow batteries having a decreased incidence of parasitic reactions can include, a first half-cell containing a first electrode, a second half-cell containing a second electrode, a separator disposed between the first half-cell and the second half-cell and contacting the first and second electrodes, a first bipolar plate contacting the first electrode, and a second bipolar plate contacting the second electrode, where a portion of the first electrode or the first bipolar plate contains a dielectric material. The first electrode and the first bipolar plate still define a contiguous electrically conductive pathway when containing the dielectric material.
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公开(公告)号：US20240291011A1
公开(公告)日：2024-08-29
申请号：US18658441
申请日：2024-05-08
发明人： Arthur J. Esswein , John Goeltz , Desiree Amadeo
摘要： Methods for forming aqueous solutions including iron hexacyanides are described. Such aqueous solutions can have ferrocyanide/ferricyanide concentrations higher than previously observed or employed, and such solutions can have application to energy storage systems.
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公开(公告)号：US11349141B2
公开(公告)日：2022-05-31
申请号：US16533475
申请日：2019-08-06
发明人： Arthur J. Esswein , John Goeltz , Desiree Amadeo
摘要： Stable solutions comprising high concentrations of charged coordination complexes, including iron hexacyanides are described, as are methods of preparing and using same in chemical energy storage systems, including flow battery systems. The use of these compositions allows energy storage densities at levels unavailable by other iron hexacyanide systems.
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公开(公告)号：US10707513B2
公开(公告)日：2020-07-07
申请号：US15682728
申请日：2017-08-22
发明人： John Goeltz , Desiree Amadeo , Arthur J. Esswein , Thomas D. Jarvi , Evan R. King , Steven Y. Reece , Nitin Tyagi
摘要： This invention is directed to aqueous redox flow batteries comprising redox-active metal ligand coordination compounds. The compounds and configurations described herein enable flow batteries with performance and cost parameters that represent a significant improvement over that previous known in the art.
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公开(公告)号：US10651489B2
公开(公告)日：2020-05-12
申请号：US15164827
申请日：2016-05-25
发明人： Arthur J. Esswein , Steven Y. Reece , Thomas H. Madden , Thomas D. Jarvi , John Goeltz , Desiree Amadeo , Evan R. King , Nitin Tyagi
IPC分类号： H01M8/1018 , H01M8/18 , H01M8/20 , H01M2/16 , H01M8/22
摘要： This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials and separators, wherein the separator is about 100 microns or less and the flow battery is capable of (a) operating with a current efficiency of at least 85% with a current density of at least about 100 mA/cm2; (b) operating with a round trip voltage efficiency of at least 60% with a current density of at least about 100 mA/cm2; and/or (c) giving rise to diffusion rates through the separator for the first active material, the second active material, or both, of about 1×10−7 mol/cm2-sec or less.
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公开(公告)号：US10547078B2
公开(公告)日：2020-01-28
申请号：US16177624
申请日：2018-11-01
摘要： This invention is directed to aqueous redox flow batteries comprising ionically charged redox active materials at least one of which is a sulfonated catechol.
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9.发明授权公开(公告)号：US10483581B2
公开(公告)日：2019-11-19
申请号：US15387594
申请日：2016-12-21
发明人： Arthur J. Esswein , Steven Y. Reece , John Goeltz , Evan R. King , Desiree Amadeo , Nitin Tyagi , Thomas D. Jarvi
IPC分类号： H01M4/96 , H01M8/18 , H01M8/20 , H02J7/00 , H01M8/04276
摘要： The invention concerns flow batteries comprising: a first half-cell comprising: (i) a first aqueous electrolyte comprising a first redox active material; and a first carbon electrode in contact with the first aqueous electrolyte; (ii) a second half-cell comprising: a second aqueous electrolyte comprising a second redox active material; and a second carbon electrode in contact with the second aqueous electrolyte; and (iii) a separator disposed between the first half-cell and the second half-cell; the first half-cell having a half-cell potential equal to or more negative than about −0.3 V with respect to a reversible hydrogen electrode; and the first aqueous electrolyte having a pH in a range of from about 8 to about 13, wherein the flow battery is capable of operating or is operating at a current density at least about 25 mA/cm2.
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