Patents by Inventor Kirakodu S. Nanjundaswamy

Kirakodu S. Nanjundaswamy 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: 20210057741
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 25, 2021
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev Iltchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Patent number: 10826062
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: November 3, 2020
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev Iltchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Publication number: 20190214646
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: DURACELL U.S. OPERATIONS, INC.
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev IItchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Patent number: 10232520
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 19, 2019
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev Iltchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Patent number: 9859558
    Abstract: A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 2, 2018
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Patent number: 9819012
    Abstract: Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 14, 2017
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Publication number: 20170110727
    Abstract: A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Application
    Filed: December 30, 2016
    Publication date: April 20, 2017
    Applicant: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Publication number: 20170110718
    Abstract: Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 20, 2017
    Applicant: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Patent number: 9570741
    Abstract: A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 14, 2017
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer A. Nelson, Paul A. Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Patent number: 9543576
    Abstract: Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 10, 2017
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Patent number: 9498890
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: November 22, 2016
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev Iltchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Publication number: 20160301074
    Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 13, 2016
    Applicant: DURACELL U.S. OPERATIONS, INC.
    Inventors: Paul Albert Christian, Yichun Wang, Nikolay Krastev Iltchev, Kirakodu S. Nanjundaswamy, Jennifer Anne Nelson, Fan Zhang
  • Publication number: 20160254530
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Application
    Filed: May 9, 2016
    Publication date: September 1, 2016
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Patent number: 9362562
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: June 7, 2016
    Assignee: HYDRO-QUEBEC
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Publication number: 20160093889
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Application
    Filed: December 2, 2015
    Publication date: March 31, 2016
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Patent number: 9028564
    Abstract: Methods of making high-energy cathode active materials for primary alkaline batteries are described. The primary batteries include a cathode having an alkali-deficient nickel(IV)-containing oxide including one or more metals such as Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal atoms as dopants partially substituted for Ni and/or Li in the crystal lattice; an anode; a separator between the cathode and the anode; and an alkaline electrolyte solution.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: May 12, 2015
    Assignee: The Gillette Company
    Inventors: Jennifer A. Nelson, Paul A. Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Publication number: 20140308192
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Patent number: 8785043
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: July 22, 2014
    Assignee: Hydro-Quebec
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Patent number: 8703336
    Abstract: A primary alkaline battery includes a cathode having an alkali-deficient nickel (IV)-containing oxide including metals such as Ni, Co, Mg, Al, Ca, Y, Mn, and/or non-metals such as B, Si, Ge or a combination of metal and/or non-metal ions as stabilizing dopants; a combination of metal ions as dopants; an anode; a separator between the cathode and the anode; and an alkaline electrolyte. The battery can be pre-discharged within one hour after assembly to decrease the open circuit voltage.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: April 22, 2014
    Assignee: The Gillette Company
    Inventors: Thomas C. Richards, Paul Christian, Jennifer A. Nelson, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Publication number: 20130252085
    Abstract: A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Inventors: Jennifer A. Nelson, Paul A. Christian, Kirakodu S. Nanjundaswamy, Fan Zhang