Patents by Inventor Travis P. Pollard

Travis P. Pollard 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).

  • Publication number: 20240387882
    Abstract: To improve the performance of certain multivalent metal electrodes, the electrodes can be treated prior to use in an electrochemical cell by applying a solution comprising an acid to a surface of a multivalent metal electrode, then removing excess solution comprising the acid and drying the surface of the multivalent metal electrode. The resulting electrode has an outer interphase layer comprised of a hydrated hydroxychloride comprising the multivalent metal, where the interphase layer has a thickness of less than 5 ?m.
    Type: Application
    Filed: May 21, 2024
    Publication date: November 21, 2024
    Applicant: U.S. Government, as Represented by Sec. of Army
    Inventors: Lin Ma, Marshall A. Schroeder, Oleg A. Borodin, Travis P. Pollard, Kang Xu
  • Publication number: 20230261268
    Abstract: To improve the performance of certain multivalent metal electrodes, the electrodes can be treated prior to use in an electrochemical cell by applying a solution comprising an acid to a surface of a multivalent metal electrode, then removing excess solution comprising the acid and drying the surface of the multivalent metal electrode. The resulting electrode has an outer interphase layer comprised of a hydrated hydroxychloride comprising the multivalent metal, where the interphase layer has a thickness of less than 5 µm.
    Type: Application
    Filed: January 25, 2022
    Publication date: August 17, 2023
    Inventors: Lin Ma, Marshall A. Schroeder, Oleg A. Borodin, Travis P. Pollard, Kang Xu
  • Publication number: 20230223595
    Abstract: An electrochemical cell (such as a battery) that provides, inter alia, improved cycling efficiencies, by utilizing an electrolyte and a plurality of electrodes (including at least one metal electrode) where the electrolyte includes one or more solvents, one or more salts, and one or more additives, and at least one of the additives is a heterocyclic compound.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Inventors: Lin Ma, Marshall A. Schroeder, Oleg A. Borodin, Travis P. Pollard, Kang Xu
  • Publication number: 20230155179
    Abstract: An electrochemical cell includes a negative electrode including a metal, metal alloy, or an electrode active material that reversibly intercalates and de-intercalates cations; a positive electrode including (i) an electrode active material that reversibly intercalates and de-intercalates cations or anions, or (ii) an inert host that reversibly catalyzes an external reactant; a separator between the negative electrode and the positive electrode; and an electrolyte including one or more alcohol-based solvents, with one or more salts. The solvents may include methanol, ethanol, isopropanol, triglycerol, 2,2,2-trifluoroethanol, an organic small molecule or macromolecule that contain at least one hydroxyl (OH) group, or a combination thereof. The electrochemical cell may include a mixture of multiple alcohol-based solvents or a mixture of the one or more alcohol-based solvents with water, mixed at select ratios. The electrochemical cell may include one or more additives having a concentration range between 0.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 18, 2023
    Inventors: Lin Ma, Marshall A. Schroeder, Oleg A. Borodin, Travis P. Pollard, Michael S. Ding, Kang Xu