Patents by Inventor Martin Janousek

Martin Janousek has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8691470
    Abstract: A seal composition includes a first alkaline earth metal oxide, a second alkaline earth metal oxide which is different from the first alkaline earth metal oxide, aluminum oxide, and silica in an amount such that molar percent of silica in the composition is at least five molar percent greater than two times a combined molar percent of the first alkaline earth metal oxide and the second alkaline earth metal oxide. The composition is substantially free of boron oxide and phosphorus oxide. The seal composition forms a glass ceramic seal which includes silica containing glass cores located in a crystalline matrix comprising barium aluminosilicate, and calcium aluminosilicate crystals located in the glass cores.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: April 8, 2014
    Assignee: Bloom Energy Corporation
    Inventors: Ananda H. Kumar, Dien Nguyen, Martin Janousek, Tad Armstrong
  • Patent number: 8663869
    Abstract: A solid oxide fuel cell (SOFC) stack includes a plurality of SOFCs, and a plurality of interconnects, each interconnect containing a conductive perovskite layer on an air side of the interconnect. The stack in internally manifolded for fuel and the conductive perovskite layer on each interconnect is not exposed in the fuel inlet riser. The SOFC electrolyte has a smaller roughness in regions adjacent to the fuel inlet and fuel outlet openings in the electrolyte than under the cathode or anode electrodes.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: March 4, 2014
    Assignee: Bloom Energy Corporation
    Inventors: Martin Janousek, Tad Armstrong, Dien Nguyen, Ananda H. Kumar
  • Publication number: 20140051010
    Abstract: A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode. The electrolyte and/or electrode composition includes zirconia stabilized with (i) scandia, (ii) ceria, and (iii) at least one of yttria and ytterbia. The composition does not experience a degradation of ionic conductivity of greater than 15% after 4000 hrs at a temperature of 850° C.
    Type: Application
    Filed: October 16, 2013
    Publication date: February 20, 2014
    Applicant: BLOOM ENERGY CORPORATION
    Inventors: Tad Armstrong, Emad El Batawi, Martin Janousek, Manoj Pillai
  • Patent number: 8623569
    Abstract: A fuel cell stack includes a plurality of fuel cells, a plurality of interconnects, and a plurality of seal members, wherein the plurality of seal members comprises one or more first seal members and one or more additional seal members, where the one or more first seal members form a protective barrier between the reducing environment contained with the fuel cell stack and the remaining seal members.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: January 7, 2014
    Assignee: Bloom Energy Corporation
    Inventors: Matthias Gottmann, Stephen Couse, Tad Armstrong, Emad El Batawi, Martin Janousek, Ananda H. Kumar
  • Patent number: 8580456
    Abstract: A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode. The electrolyte and/or electrode composition includes zirconia stabilized with (i) scandia, (ii) ceria, and (iii) at least one of yttria and ytterbia. The composition does not experience a degradation of ionic conductivity of greater than 15% after 4000 hrs at a temperature of 850° C.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: November 12, 2013
    Assignee: Bloom Energy Corporation
    Inventors: Tad Armstrong, Emad El Batawi, Martin Janousek, Manoj Pillai
  • Publication number: 20120135337
    Abstract: Various embodiments provide methods for testing a fuel cell interconnect including the steps of providing a fuel cell interconnect and performing a non-destructive test on the fuel cell interconnect comprising at least one of detecting a magnetic response of the interconnect, calculating a volume by optically illuminating the interconnect, detecting an acoustic response of the interconnect, and detecting a thermal response of the interconnect.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Applicant: Bloom Energy Corporation
    Inventors: Harald Herchen, Arne Ballantine, Martin Janousek, Stephen Couse
  • Publication number: 20110183233
    Abstract: A solid oxide fuel cell (SOFC) includes a cathode electrode, a solid oxide electrolyte, and an anode electrode. The electrolyte and/or electrode composition includes zirconia stabilized with (i) scandia, (ii) ceria, and (iii) at least one of yttria and ytterbia. The composition does not experience a degradation of ionic conductivity of greater than 15% after 4000 hrs at a temperature of 850° C.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 28, 2011
    Applicant: Bloom Energy Corporation
    Inventors: Tad Armstrong, Emad El Batawi, Martin Janousek, Manoj Pillai
  • Publication number: 20100239937
    Abstract: A solid oxide fuel cell (SOFC) stack includes a plurality of SOFCs, and a plurality of interconnects, each interconnect containing a conductive perovskite layer on an air side of the interconnect. The stack in internally manifolded for fuel and the conductive perovskite layer on each interconnect is not exposed in the fuel inlet riser. The SOFC electrolyte has a smaller roughness in regions adjacent to the fuel inlet and fuel outlet openings in the electrolyte than under the cathode or anode electrodes.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Inventors: Martin Janousek, Tad Armstrong, Dien Nguyen, Ananda H. Kumar
  • Publication number: 20100159344
    Abstract: A fuel cell stack includes a plurality of fuel cells, a plurality of interconnects, and a plurality of seal members, wherein the plurality of seal members comprises one or more first seal members and one or more additional seal members, where the one or more first seal members form a protective barrier between the reducing environment contained with the fuel cell stack and the remaining seal members.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 24, 2010
    Inventors: Matthias Gottmann, Stephen Couse, Tad Armstrong, Emad El Batawi, Martin Janousek, Ananda H. Kumar
  • Publication number: 20100119917
    Abstract: A seal composition includes a first alkaline earth metal oxide, a second alkaline earth metal oxide which is different from the first alkaline earth metal oxide, aluminum oxide, and silica in an amount such that molar percent of silica in the composition is at least five molar percent greater than two times a combined molar percent of the first alkaline earth metal oxide and the second alkaline earth metal oxide. The composition is substantially free of boron oxide and phosphorus oxide. The seal composition forms a glass ceramic seal which includes silica containing glass cores located in a crystalline matrix comprising barium aluminosilicate, and calcium aluminosilicate crystals located in the glass cores.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 13, 2010
    Inventors: Ananda H. Kumar, Dien Nguyen, Martin Janousek, Tad Armstrong
  • Patent number: 7390456
    Abstract: Highly dense shaped parts are produced with a powder metallurgic process. The parts are formed of an alloy that, besides of at least 20 weight % chromium, consists of iron and one or several additional alloy portions that in sum do not amount to more than 10 weight %. The part is produced by pressing and sintering to near final shape a ready-to-press powder where the additional alloy portions are introduced in form of a master-alloy powder. The master-alloy may contain the following variations: the additional alloy portions and the iron portions; or the additional alloy portions, the iron parts, and the chromium portions; or additional alloy portions and the chromium portions.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: June 24, 2008
    Assignee: Plansee Aktiengesellschaft
    Inventors: Wolfgang Glatz, Martin Janousek, Wolfgang Kraussler, Gebhard Zobl, Reinhold Zach
  • Patent number: 6737186
    Abstract: The ferritic iron alloy is particularly suitable as a material for current collectors used in SOFC solid electrolyte high-temperature fuel cells. The material has a high chromium content upwards of 22% by weight, and a molybdenum content of 1 to 10% by weight. Additionally, there is provided 0.01 to 1.5% by weight of yttrium, rare earth metals, and/or their oxides. The alloy in particular has a high resistance to corrosion under the standard cell atmospheres in the temperature range from 700° to 900° C.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: May 18, 2004
    Assignee: Plansee Aktiengesellschaft
    Inventors: Martin Janousek, Wolfgang Glatz, Kaspar Honegger
  • Publication number: 20030021715
    Abstract: Highly dense shaped parts are produced with a powder metallurgic process. The parts are formed of an alloy that, besides of at least 20 weight % chromium, consists of iron and one or several additional alloy portions that in sum do not amount to more than 10 weight %. The part is produced by pressing and sintering to near final shape a ready-to-press powder where the additional alloy portions are introduced in form of a master-alloy powder. The master-alloy may contain the following variations: the additional alloy portions and the iron portions; or the additional alloy portions, the iron parts, and the chromium portions; or additional alloy portions and the chromium portions.
    Type: Application
    Filed: September 10, 2002
    Publication date: January 30, 2003
    Inventors: Wolfgang Glatz, Martin Janousek, Wolfgang Kraussler, Gebhard Zobl, Reinhold Zach
  • Publication number: 20020182468
    Abstract: The ferritic iron alloy is particularly suitable as a material for current collectors used in SOFC solid electrolyte high-temperature fuel cells. The material has a high chromium content upwards of 22% by weight, and a molybdenum content of 1 to 10% by weight. Additionally, there is provided 0.01 to 1.5% by weight of yttrium, rare earth metals, and/or their oxides. The alloy in particular has a high resistance to corrosion under the standard cell atmospheres in the temperature range from 700° to 900° C.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 5, 2002
    Inventors: Martin Janousek, Wolfgang Glatz, Kaspar Honegger