Patents by Inventor Dmitri Vdovine

Dmitri Vdovine 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).

  • Method of chemical treatment of fuel cell plate surface to modify wettability of flow field channels
    Patent number: 8530100
    Abstract: A method of surface treating a separator plate of a fuel cell comprises reacting the separator plate with an aqueous solution of hydrogen peroxide. The aqueous solution of hydrogen peroxide comprises one or more salts of one or more transition metals. The one or more transition metals have variable oxidation states. This method makes the surface of the separator plate hydrophilic (˜35 deg contact angle of water) and improves its electrical conductivity. The method of surface treating a separator plate (e.g., a graphite and/or graphite composite plate) of a fuel cell can further comprise a method of modifying wettability of the separator plate comprising treating the separator plate with a solution comprising one or more silanes. In another embodiment, a method of modifying wettability of a separator plate (e.g.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 10, 2013
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Dmitri Vdovine, Natalia Kremliakova, Andrei Bogdanov
  • Method of Chemical Treatment of Fuel Cell Plate Surface to Modify Wettability of Flow Field Channels
    Publication number: 20110143221
    Abstract: A method of surface treating a separator plate of a fuel cell comprises reacting the separator plate with an aqueous solution of hydrogen peroxide. The aqueous solution of hydrogen peroxide comprises one or more salts of one or more transition metals. The one or more transition metals have variable oxidation states. This method makes the surface of the separator plate hydrophilic (˜35 deg contact angle of water) and improves its electrical conductivity. The method of surface treating a separator plate (e.g., a graphite and/or graphite composite plate) of a fuel cell can further comprise a method of modifying wettability of the separator plate comprising treating the separator plate with a solution comprising one or more silanes. In another embodiment, a method of modifying wettability of a separator plate (e.g.
    Type: Application
    Filed: December 10, 2009
    Publication date: June 16, 2011
    Applicants: Daimler AG, Ford Motor Company
    Inventors: Dmitri Vdovine, Natalia Kremliakova, Andrei Bogdanov