Patents by Inventor Marie-Claude Bay

Marie-Claude Bay 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).

  • Surface treatment of a solid electrolyte to lower the interfacial resistance between the solid electrolyte and an electrode
    Patent number: 11515564
    Abstract: Disclosed are electrochemical devices, such as sodium ion conducting solid state electrolytes, sodium battery electrodes, and solid-state sodium metal batteries including these electrodes and solid state electrolytes. One example method for preparing a sodium/sodium-??-alumina interface with low interfacial resistance and capable of achieving high current density in an electrochemical cell includes the steps of: (a) providing a precursor electrolyte having a resistive surface region, wherein the precursor electrolyte comprises sodium-??-alumina; (b) removing at least a portion of the resistive surface region; (c) heating the precursor electrolyte thereby forming a solid state electrolyte, and (d) placing a side of the solid state electrolyte in contact with a sodium anode.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 29, 2022
    Assignees: THE REGENTS OF THE UNIVERSITY OF MICHIGAN, EMPA
    Inventors: Marie-Claude Bay, Corsin Battaglia, Michael Wang, Jeff Sakamoto
  • SURFACE TREATMENT OF A SOLID ELECTROLYTE TO LOWER THE INTERFACIAL RESISTANCE BETWEEN THE SOLID ELECTROLYTE AND AN ELECTRODE
    Publication number: 20210066747
    Abstract: Disclosed are electrochemical devices, such as sodium ion conducting solid state electrolytes, sodium battery electrodes, and solid-state sodium metal batteries including these electrodes and solid state electrolytes. One example method for preparing a sodium/sodium-??-alumina interface with low interfacial resistance and capable of achieving high current density in an electrochemical cell includes the steps of: (a) providing a precursor electrolyte having a resistive surface region, wherein the precursor electrolyte comprises sodium-??-alumina; (b) removing at least a portion of the resistive surface region; (c) heating the precursor electrolyte thereby forming a solid state electrolyte, and (d) placing a side of the solid state electrolyte in contact with a sodium anode.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: Marie-Claude Bay, Corsin Battaglia, Michael Wang, Jeff Sakamoto