Patents by Inventor Christel Roux

Christel Roux 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: 7763391
    Abstract: An alkali fuel cell comprises a solid stack consisting of a first electrode, a solid membrane conducting hydroxide ions and a second electrode, each electrode comprising an active layer that is in contact with the solid membrane. The material forming the active layer of each electrode comprises at least a catalytic element, an electronic conductive element and an element conducting hydroxide ions. The element conducting hydroxide ions is a polymer having vinylaromatic units comprising a quaternary ammonium function and a hydroxide ion OH? is associated with each quaternary ammonium function. One such alkali fuel cell is unaffected by carbonation and maintains good electrochemical performances.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: July 27, 2010
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Didier Marsacq, Christel Roux, Max Perrin, John A. Brunea
  • Patent number: 7569289
    Abstract: The fuel cell, generating electric power from oxygen and hydrogen ions and comprising an anode (A), a magnetic cathode, comprising an active layer (2),and a proton electrolyte (1) between the anode and the cathode, comprises a network (3) of permanent magnets (4) designed to increase the diffusion of oxygen in the active layer. The centers of the magnets (4) of the network (3) of permanent magnets are preferably arranged with a two-dimensional distribution in a plane arranged at the interface between the electrolyte (1) and the active layer (2), the magnets being magnetized in parallel manner along the axis perpendicular to this plane. In this way, all the poles of one polarity (S) are surrounded by the active layer (2), all the poles of opposite polarity (N) being surrounded by the electrolyte (1).
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 4, 2009
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Didier Marsacq, Christine Nayoze, Christel Roux, Alejandro Franco
  • Patent number: 7521147
    Abstract: The invention relates to a fuel cell with a stack comprising an electrolytic membrane (4), with front and rear faces (4a, 4b) on which first and second current collectors (13, 15) are respectively arranged, each comprising a metallic deposit and provided with a number of transverse passages. First and second electrodes (14, 16) are respectively arranged on the first and second current collectors (13, 15) such as to come into direct contact with the electrolytic membrane (4).
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: April 21, 2009
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Didier Marsacq, Jean-Yves Laurent, Christel Roux, Christine Nayoze, Fran├žis Cardot
  • Publication number: 20070128500
    Abstract: An alkali fuel cell comprises a solid stack consisting of a first electrode, a solid membrane conducting hydroxide ions and a second electrode, each electrode comprising an active layer that is in contact with the solid membrane. The material forming the active layer of each electrode comprises at least a catalytic element, an electronic conductive element and an element conducting hydroxide ions. The element conducting hydroxide ions is a polymer having vinylaromatic units comprising a quaternary ammonium function and a hydroxide ion OH? is associated with each quaternary ammonium function. One such alkali fuel cell is unaffected by carbonation and maintains good electrochemical performances.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 7, 2007
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Didier Marsacq, Christel Roux, Max Perrin, John Brunea
  • Publication number: 20070054155
    Abstract: An alkaline fuel cell comprises at least one electrolyte having an anode disposed thereon. The anode is formed by a stack of a first thin layer and a second thin layer disposed between the electrolyte and the first thin layer. The first thin layer consists of aluminium or an aluminium alloy whereas the second thin layer preferably consists of zinc or a zinc alloy. The anode of the alkaline fuel cell is preferably produced by depositing the second thin layer designed to come into contact with the electrolyte, by physical vapor deposition, on a substrate formed by the aluminium or aluminium alloy first thin layer.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 8, 2007
    Applicant: Commissariat A L'ENERGIE ATOMIQUE
    Inventors: Emmanuel Damery, Didier Marsacq, Christel Roux, Max Perrin
  • Patent number: 7169503
    Abstract: The PEM (Proton Exchange Membrane) type basic fuel cell element has a high efficient when only the protons migrate towards the cathode, excluding any other species that could react with the cathode. It is composed mainly of a silicon substrate (25) crossed by pipes (26), terminating on the bottom of a dish. The cathode (20) is deposited on the bottom of this dish, covered by a first layer of electrolyte (23). An internal part (32) of the anode is embedded between two layers (23) of electrolyte, while an external part (31) is placed on the upper part of it. The internal part (32) is preferably a grid or a foam such that fuel migrating towards the cathode can be consumed and protons can pass through.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: January 30, 2007
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Jean-Yves Laurent, Didier Marsacq, Christel Roux, Christine Nayoze
  • Publication number: 20060134500
    Abstract: The invention relates to a fuel cell with a stack comprising an electrolytic membrane (4), with front and rear faces (4a, 4b) on which first and second current collectors (13, 15) are respectively arranged, each comprising a metallic deposit and provided with a number of transverse passages. First and second electrodes (14, 16) are respectively arranged on the first and second current collectors (13, 15) such as to come into direct contact with the electrolytic membrane (4).
    Type: Application
    Filed: June 21, 2004
    Publication date: June 22, 2006
    Applicant: Commissariat a l'Energie Atomique
    Inventors: Didier Marsacq, Jean-Yves Laurent, Christel Roux, Christine Nayoze, Francis Cardot
  • Publication number: 20060035117
    Abstract: The fuel cell, generating electric power from oxygen and hydronium ions and comprising an anode (A), a magnetic cathode, comprising an active layer (2), and a proton electrolyte (1) between the anode and the cathode, comprises a network (3) of permanent magnets (4) designed to increase the diffusion of oxygen in the active layer. The centers of the magnets (4) of the network (3) of permanent magnets are preferably arranged with a two-dimensional distribution in a plane arranged at the interface between the electrolyte (1) and the active layer (2), the magnets being magnetized in parallel manner along the axis perpendicular to this plane. In this way, all the poles of one polarity (S) are surrounded by the active layer (2), all the poles of opposite polarity (N) being surrounded by the electrolyte (1).
    Type: Application
    Filed: December 2, 2003
    Publication date: February 16, 2006
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Didier Marsacq, Christine Nayoze, Christel Roux, Alejandro Franco
  • Publication number: 20050042499
    Abstract: The PEM (Proton Exchange Membrane) type basic fuel cell element has a high efficiency, when only the protons migrate towards the cathode, excluding any other species that could react with the cathode. It is composed mainly of a silicon substrate (25) crossed by pipes (26), terminating on the bottom of a dish. The cathode (20) is deposited on the bottom of this dish, covered by a first layer of electrolyte (23). An internal part (32) of the anode is embedded between two layers (23) of electrolyte, while an external part (31) is placed on the upper part of it. The internal part (32) is preferably a grid or a foam such that fuel migrating towards the cathode can be consumed and protons can pass through.
    Type: Application
    Filed: April 18, 2003
    Publication date: February 24, 2005
    Inventors: Jean-Yves Laurent, Didier Marsacq, Christel Roux, Christine Nayoze