Patents Assigned to CellEra, Inc.
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Publication number: 20160172686Abstract: In an AMFC, in the formation of a CCM, the anode catalyst layer is selectively cross-linked while the cathode catalyst layer is not cross-linked. This has been found to provide structural stabilization of the CCM without loss of initial power value for a CCM without cross-linking.Type: ApplicationFiled: March 11, 2014Publication date: June 16, 2016Applicant: CellEra, Inc.Inventors: Dario Dekel, Shimshon Gottesfeld
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Patent number: 8895198Abstract: An air CO2 filtration assembly or system is provided that includes CO2 filters or traps designed and configured with a limited, but high capacity, volume to maximize filtration/absorption of CO2 from an air stream supplied to an alkaline fuel cell to thereby minimize the CO2 level in the air stream fed into the fuel cell cathode. The CO2 filters or traps include at least one thermally regenerative CO2 chemical filter or trap arranged in a tandem configuration with a strongly bonding CO2 chemical filter or trap. The combination of the two types of filters or traps sequentially filter/absorb CO2 from the air stream and reduce the level of CO2 in the air stream fed into the cathode. The air CO2 filtration assembly or system may be used in conjunction with electrochemical purging of the alkaline fuel cell that enables removal of CO2 from the fuel cell by anodic decomposition of accumulated carbonate ions in the fuel cell anode and release of CO2 through the anode exhaust stream.Type: GrantFiled: August 24, 2010Date of Patent: November 25, 2014Assignee: Cellera, Inc.Inventor: Shimson Gottesfeld
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Publication number: 20140322622Abstract: In a method of preparing a ruthenium-containing catalyst on a non-conductive metal oxide support comprises dissolving one or more ruthenium precursor compounds in an liquid organic polyol, combining the thus obtained solution with (a) nano-powder(s) of one or more metal oxides in a ratio of moles metal oxide(s) to moles ruthenium atoms in the one or more ruthenium precursor compounds of about 0:1 to about 6:1, the metal oxide nano-powder(s) having a surface area of from about 5 to about 300m2/g and a point of zero charge (PZC) of pH 5.5 or higher, agitating the thus obtained mixture, adding pre-shaped alumina sup port pellets to the agitated mixture, which is than heated at a temperature of about 50° C.Type: ApplicationFiled: May 15, 2012Publication date: October 30, 2014Applicant: CELLERA, INC.Inventor: Debasish Chakraborty
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Publication number: 20140272663Abstract: In an AMFC, in the formation of a CCM, the anode catalyst layer is selectively cross-linked while the cathode catalyst layer is not cross-linked. This has been found to provide structural stabilization of the CCM without loss of initial power value for a CCM without cross-linking.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: CellEra, Inc.Inventors: Dario Dekel, Shimshon Gottesfeld
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Publication number: 20140186728Abstract: Embodiments of the invention provide an ammonia operated fuel cell system including an alkaline membrane fuel cell (AMFC) having an anode, and an ammonia thermal cracker including a combustion chamber, the cracker being in gas communication with an ammonia source, and configured to provide a supply of H2 directly to the AMFC anode.Type: ApplicationFiled: March 4, 2014Publication date: July 3, 2014Applicant: CELLERA, INC.Inventors: Miles Page, Dario Dekel, Ziv Gottesfeld, Shimshon Gottesfeld
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Patent number: 8637196Abstract: A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.Type: GrantFiled: August 29, 2012Date of Patent: January 28, 2014Assignee: CellEra, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, Ziv Gottesfeld, David Stanislav Simakov
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Publication number: 20120321991Abstract: A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.Type: ApplicationFiled: August 29, 2012Publication date: December 20, 2012Applicant: CellEra, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, Ziv Gottesfeld, David Stanislav Simakov
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Publication number: 20120321973Abstract: A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.Type: ApplicationFiled: August 29, 2012Publication date: December 20, 2012Applicant: CellEra, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, Ziv Gottesfeld, David Stanislav Simakov
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Patent number: 8304368Abstract: Alkaline membrane fuel cells designed with silver cathode catalysts include a catalyst layer comprising silver metal nano-particles and an anion-conducting ionomer. The silver nano-particles are mixed with a solution of the ionomer to form a catalyst ink that is applied to an alkaline membrane to form an ultra-thin cathode catalyst layer on the membrane surface.Type: GrantFiled: February 23, 2010Date of Patent: November 6, 2012Assignee: Cellera, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, David Stanislav Simakov
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Patent number: 8257872Abstract: A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.Type: GrantFiled: February 3, 2011Date of Patent: September 4, 2012Assignee: CellEra, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, Ziv Gottesfeld, Stanislav David Simakov
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Patent number: 7943258Abstract: A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.Type: GrantFiled: June 3, 2009Date of Patent: May 17, 2011Assignee: CellEra, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, Ziv Gottesfeld, Stanislav David Simakov
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Publication number: 20100216052Abstract: Alkaline membrane fuel cells designed with silver cathode catalysts include a catalyst layer comprising silver metal nano-particles and an anion-conducting ionomer. The silver nano-particles are mixed with a solution of the ionomer to form a catalyst ink that is applied to an alkaline membrane to form an ultra-thin cathode catalyst layer on the membrane surface.Type: ApplicationFiled: February 23, 2010Publication date: August 26, 2010Applicant: Cellera, Inc.Inventors: Shimshon Gottesfeld, Dario Dekel, David Stanislav Simakov