Patents by Inventor Giorgio MAURIZIO

Giorgio MAURIZIO 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).

  • Bipolar plate for fuel cells, and production method
    Patent number: 11114675
    Abstract: The bipolar plate of the invention for electrochemical cells, especially for proton-exchange membrane (PEM) fuel cells, is made with a metallic substrate and on the surface is made with an electrical contact resistance-reducing, carbon-based layer, a layer system or a boundary layer which is made of a near-surface, primarily sp2-bonded, carbon-based layer having a carbon fraction ranging from 50% to 100%, this layer being applied on a metallic substrate surface that is modified relative to the starting material. There may also be a surface region of the substrate in the form of an edge layer made with nitride and/or carbon by nitriding and/or carburizing. On the surface which is in touching contact with a gas-permeable element within the electrochemical cell, the metallic substrate may have a structuring made with elevations and/or depressions in the respective surface.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 7, 2021
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., TECHNISCHE UNIVERSITÄT DRESDEN
    Inventors: Slavcho Topalski, Teja Roch, Thomas Stucky, Axel Zwick, Giorgio Maurizio
  • BIPOLAR PLATE FOR FUEL CELLS, AND PRODUCTION METHOD
    Publication number: 20190363372
    Abstract: The bipolar plate of the invention for electrochemical cells, especially for proton-exchange membrane (PEM) fuel cells, is made with a metallic substrate and on the surface is made with an electrical contact resistance-reducing, carbon-based layer, a layer system or a boundary layer which is made of a near-surface, primarily sp2-bonded, carbon-based layer having a carbon fraction ranging from 50% to 100%, this layer being applied on a metallic substrate surface that is modified relative to the starting material. There may also be a surface region of the substrate in the form of an edge layer made with nitride and/or carbon by nitriding and/or carburizing. On the surface which is in touching contact with a gas-permeable element within the electrochemical cell, the metallic substrate may have a structuring made with elevations and/or depressions in the respective surface.
    Type: Application
    Filed: February 20, 2018
    Publication date: November 28, 2019
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., TECHNISCHE UNIVERSITAT DRESDEN
    Inventors: Slavcho TOPALSKI, Teja ROCH, Thomas STUCKY, Axel ZWICK, Giorgio MAURIZIO