Patents by Inventor Pieter Nammensma

Pieter Nammensma 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: 7851104
    Abstract: Anode-supported fuel cell, in particular SOFC, where stresses in the anode substrate are compensated for by a stress compensation layer. According to the invention said stress compensation layer is made porous by making a large number of vary small openings. These openings are preferably made hexagonal and the thickness of the walls between the openings is minor. An electron-conducting porous layer is applied to the stress compensation layer.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: December 14, 2010
    Assignee: H. C. Starck GmbH
    Inventors: Pieter Nammensma, Robert De Rooy, Bartholomeus Cornelis Broersen
  • Publication number: 20060093887
    Abstract: Anode-supported fuel cell, in particular SOFC, where stresses in the anode substrate are compensated for by a stress compensation layer. According to the invention the stress compensation layer is made porous by making a large number of very small openings. These openings are preferably made hexagonal and the thickness of the walls between the openings is minor. An electron-conducting porous layer is applied to the stress compensation layer.
    Type: Application
    Filed: July 3, 2003
    Publication date: May 4, 2006
    Inventors: Pieter Nammensma, Robert De Rooy, Bartholomeus Broersen
  • Patent number: 6663999
    Abstract: Electrochemical cell on the basis of electrode-supported thin electrolyte includes an anodic support (1) consisting of a nickel/zirconia material and an electrolyte layer (3) disposed that includes zirconia thereon and a cathode layer (6) which is in turn disposed thereon. To improve the quality of the cell and to increase the output it is proposed to arrange an auxiliary or intermediate layer (2) between the electrolyte layer and the anodic support. This auxiliary layer consists of nickel and zirconia particles which are substantially smaller than the particles of the support. Then an electrolyte layer (10) and, on the other side of the anodic support, a current collector layer are applied. None of these layers are sintered. Only after an assembly obtained in this manner has been obtained is a sintering treatment carried out.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: December 16, 2003
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Franciscus Petrus Felix Van Berkel, Jan Pieter Ouweltjes, Pieter Nammensma
  • Publication number: 20030012880
    Abstract: Electrochemical cell on the basis of electrode-supported thin electrolyte comprising an anodic support (1) consisting of a nickel/zirconia material and an electrolyte layer (3) disposed comprising zirconia thereon and a cathode layer (6) which is in turn disposed thereon. To improve the quality of the cell and to increase the output it is proposed to arrange an auxiliary or intermediate layer (2) between the electrolyte layer and the anodic support. This auxiliary layer consists of nickel and zirconia particles which are substantially smaller than the particles of the support. Then an electrolyte layer (10) and, on the other side of the anodic support, a current collector layer are applied. None of these layers are sintered. Only after an assembly obtained in this manner has been obtained is a sintering treatment carried out.
    Type: Application
    Filed: August 5, 2002
    Publication date: January 16, 2003
    Inventors: Franciscus Petrus Felix Van Berkel, Jan Pieter Ouweltjes, Pieter nammensma
  • Patent number: 6217812
    Abstract: Method for producing a plate-shaped component. This involves the preparation of a first suspension comprising an alcohol as the dispersing medium and a base material for the plate. A second suspension is prepared which comprises binder, water as the gelling agent and an alcohol as the dispersion medium, possibly with the addition of Li/K or Li/Na carbonate. These two suspensions are mixed together, possibly with the addition of fibers. After mixing, a plate-shaped component is fabricated with the aid of the “tape casting” technique.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: April 17, 2001
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Robert De Rooij, Pieter Nammensma