Patents by Inventor Kejie Zhao

Kejie Zhao 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: 11002652
    Abstract: Methods and apparatuses for measuring mechanical properties of electrodes during electrochemical reactions. Such an apparatus includes a fixture having a fluid reservoir that is open to a surrounding atmosphere, first and second electrodes located within the fluid reservoir, and a contact for coupling with a sample material located in the fluid reservoir to define a third electrode. The apparatus further includes a nanoindenter configured for applying a load to a surface of the sample material to form an indentation therein and measuring the load and the size of the indentation over time, a housing enclosing the fixture and the nanoindenter within an inert atmosphere, and a potentiostat configured to charge and discharge an electrochemical cell that is defined by the first, second, and third electrodes and an electrolyte solution in the fluid reservoir while the nanoindenter is applying the load.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: May 11, 2021
    Assignee: Purdue Research Foundation
    Inventors: Kejie Zhao, Luize Scalco de Vasconcelos, Rong Xu
  • Publication number: 20190204194
    Abstract: Methods and apparatuses for measuring mechanical properties of electrodes during electrochemical reactions. Such an apparatus includes a fixture having a fluid reservoir that is open to a surrounding atmosphere, first and second electrodes located within the fluid reservoir, and a contact for coupling with a sample material located in the fluid reservoir to define a third electrode. The apparatus further includes a nanoindenter configured for applying a load to a surface of the sample material to form an indentation therein and measuring the load and the size of the indentation over time, a housing enclosing the fixture and the nanoindenter within an inert atmosphere, and a potentiostat configured to charge and discharge an electrochemical cell that is defined by the first, second, and third electrodes and an electrolyte solution in the fluid reservoir while the nanoindenter is applying the load.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 4, 2019
    Inventors: Kejie Zhao, Luize Scalco de Vasconcelos, Rong Xu