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).

  • PRIMARY ALKALINE BATTERY
    Publication number: 20110223493
    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 12, 2010
    Publication date: September 15, 2011
    Inventors: Paul A. Christian, Yichun Wang, Nikolay K. Iltchev, Kirakodu S. Nanjundaswamy, Jennifer A. Nelson, Fan Zhang
  • ACID-TREATED MANGANESE DIOXIDE AND METHODS OF MAKING THEREOF
    Publication number: 20110220842
    Abstract: A primary battery includes a cathode having an acid-treated manganese dioxide, an anode, a separator between the cathode and the anode, and an alkaline electrolyte.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 15, 2011
    Inventors: Kirakodu S. Nanjundaswamy, Fan Zhang, Yichun Wang, James J. Cervera, Jennifer A. Nelson, Gary A. Miller, Rimma A. Sirotina
  • CATHODE ACTIVE MATERIALS AND METHOD OF MAKING THEREOF
    Publication number: 20110219607
    Abstract: A method of making a primary alkaline battery that includes a cathode including ?-MnO2 as an active material, an anode including zinc or zinc alloy as an active material, a separator between the cathode and anode, and an alkaline electrolyte contacting the anode and cathode having improved discharge performance. Methods of making high-purity, essentially lithium-free ?-MnO2 having high electrochemical activity from nominally stoichiometric lithium manganese oxide spinels are disclosed.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 15, 2011
    Inventors: Kirakodu S. Nanjundaswamy, Fan Zhang, Jennifer A. Nelson, Paul A. Christian
  • Battery cathodes
    Patent number: 8003254
    Abstract: Batteries are disclosed. In some embodiments, a battery includes a cathode having a composition that includes a manganese oxide. The composition has an X-ray diffraction pattern with a first peak at about 18 degrees, a second peak at about 22 degrees, and a third peak at about 32 degrees.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: August 23, 2011
    Assignee: The Gillette Company
    Inventors: Todd E. Bofinger, William L. Bowden, George Cintra, Kirakodu S. Nanjundaswamy, Rimma A. Sirotina, Dana Alexa Totir, Fan Zhang
  • Cathode materials for secondary (rechargeable) lithium batteries
    Patent number: 7998617
    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-olivineor 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 29, 2006
    Date of Patent: August 16, 2011
    Assignee: Hydro-Québec
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Cathode materials for secondary (rechargeable) lithium batteries
    Patent number: 7964308
    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-olivineor 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: September 8, 2010
    Date of Patent: June 21, 2011
    Assignee: Hydro-Quebec
    Inventors: John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Cathode materials for secondary (rechargeable) lithium batteries
    Patent number: 7955733
    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-olivineor 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: August 20, 2010
    Date of Patent: June 7, 2011
    Assignee: Hydro-Quebec
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Battery with integrated voltage converter
    Patent number: 7932700
    Abstract: A battery that includes an electrochemical cell having an internal bore therethrough is described herein. The battery also includes a voltage converter module electrically coupled to the electrochemical cell and disposed within a portion of the internal bore The voltage converter is configured to convert a first voltage produced by the electrochemical cell into a second, different voltage.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 26, 2011
    Assignee: The Gillette Company
    Inventors: George M. Cintra, Kirakodu S. Nanjundaswamy, Alexander Kaplan, David C. Batson, David Leigh DeMuth, Leslie J. Pinnell, Frank Kressmann, Joern Riemer, Leo Faranda
  • CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES
    Publication number: 20110068297
    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, a modified 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: November 23, 2010
    Publication date: March 24, 2011
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • ALKALINE PRIMARY CELLS
    Publication number: 20110039150
    Abstract: A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The electrolyte further includes manganese. The manganese is selected from the group consisting of: cesium permanganate (CsMnO4), cesium manganate (Cs2MnO4), magnesium permanganate (Mg(MnO4)2), magnesium manganate (MgMnO4), silver manganate (Ag2MnO4), silver permanganate (AgMnO4), barium manganate (BaMnO4), and barium permanganate (Ba(MnO4)2).
    Type: Application
    Filed: August 14, 2009
    Publication date: February 17, 2011
    Inventors: Yichun Wang, James Joseph Cervera, Tatjana Mezini, Kirakodu S. Nanjundaswamy, Fan Zhang
  • ALKALINE PRIMARY CELLS
    Publication number: 20110039148
    Abstract: A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The anode further includes manganese.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 17, 2011
    Inventors: Yichun Wang, James Joseph Cervera, Tatjana Mezini, Kirakodu S. Nanjundaswamy, Fan Zhang
  • ALKALINE PRIMARY CELLS
    Publication number: 20110039149
    Abstract: A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The cathode further includes manganese.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 17, 2011
    Inventors: Yichun Wang, James Joseph Cervera, Tatjana Mezini, Kirakodu S. Nanjundaswamy, Fan Zhang
  • CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES
    Publication number: 20110017959
    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, a modified 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: September 8, 2010
    Publication date: January 27, 2011
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Chirstian Masquelier
  • CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES
    Publication number: 20110006270
    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, a modified 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: September 8, 2010
    Publication date: January 13, 2011
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES
    Publication number: 20100316909
    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, a modified 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: August 20, 2010
    Publication date: December 16, 2010
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES
    Publication number: 20100314577
    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, a modified 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: August 20, 2010
    Publication date: December 16, 2010
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Non-Aqueous Electrochemical Cells
    Publication number: 20090061323
    Abstract: Electrochemical cells are disclosed. In some embodiments, an electrochemical cell includes an electrolyte that contains a bis(oxalato)borate salt.
    Type: Application
    Filed: November 5, 2008
    Publication date: March 5, 2009
    Inventors: Dana Alexa Totir, Kirakodu S. Nanjundaswamy, Michael Pozin
  • Non-aqueous lithium electrical cell
    Patent number: 7459237
    Abstract: An electrochemical cell includes a cathode containing MnO2 and an anode including lithium. The cell also includes an electrolyte containing a bis(oxalato)borate salt. The cell further includes an aluminum surface in electrical contact with a non-aluminum metal surface.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: December 2, 2008
    Assignee: The Gillette Company
    Inventors: Dana Alexa Totir, Kirakodu S. Nanjundaswamy, Michael Pozin
  • Lithium secondary batteries
    Publication number: 20080248375
    Abstract: Secondary batteries having fast charge times are provided. In some implementations, the cathode includes LiFePO4 as an active material. In some implementations, the batteries include carbon-based anodes.
    Type: Application
    Filed: July 11, 2007
    Publication date: October 9, 2008
    Inventors: George M. Cintra, Alexander Kaplan, Matthew R. Stone, Kirakodu S. Nanjundaswamy, Richard K. Holman, Frank Kressmann, Harmut Loth-Krausser
  • Battery With Integrated Voltage Converter
    Publication number: 20080238369
    Abstract: Disclosed is a battery. The battery includes an electrochemical cell having an internal bore therethrough, and a voltage converter module electrically coupled to the electrochemical cell and disposed within a portion of the internal bore, the voltage converter configured to convert a first voltage produced by the electrochemical cell into a second, different voltage.
    Type: Application
    Filed: July 11, 2007
    Publication date: October 2, 2008
    Inventors: George M. Cintra, Kirakodu S. Nanjundaswamy, Alexander Kaplan, David C. Batson, David Leigh DeMuth, Leslie J. Pinnell, Frank Kressmann, Joern Riemer, Leo Faranda