Patents by Inventor G. Stephen Kelsey

G. Stephen Kelsey 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).

  • Alkaline metal-air battery cathode
    Patent number: 11152657
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 19, 2021
    Assignee: Ionic Materials, Inc.
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • Alkaline metal-air battery cathode
    Patent number: 11121423
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 14, 2021
    Assignee: Ionic Materials, Inc.
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • ALKALINE METAL-AIR BATTERY CATHODE
    Publication number: 20190067764
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • Alkaline metal-air battery cathode
    Patent number: 10199657
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: February 5, 2019
    Assignee: IONIC MATERIALS, INC.
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • ALKALINE METAL-AIR BATTERY CATHODE
    Publication number: 20170092958
    Abstract: A metal-air battery and a component air cathode including a solid ionically conductive polymer material.
    Type: Application
    Filed: May 31, 2016
    Publication date: March 30, 2017
    Inventors: Michael A. Zimmerman, Alexei B. Gavrilov, G. Stephen Kelsey, Keith Smith
  • Alkaline cell with semisolid cathode
    Patent number: 6207322
    Abstract: An alkaline cell is disclosed having a cathode comprising manganese dioxide wherein the cathode is a semisolid during discharge of the cell. The cell has an anode comprising zinc and an electrolyte comprising potassium hydroxide. The semisolid cathode comprising manganese dioxide may be in the form of a putty or paste. The semisolid cathode reduces cathode polarization effects and results in increased manganese dioxide utilization (Amp-hr/g), particularly at high current drain, between about 0.5 and 2 Amp. The porosity of the cathode is between about 45% and 70%, and the volume ratio of electrolyte solution in the cathode to the solids in the cathode is at a value between about 0.7 and 2.3.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: March 27, 2001
    Assignee: Duracell Inc
    Inventors: G. Stephen Kelsey, Purush Chalilpoyil, Philp D. Trainer, Alex Kaplan, George Cintra, Viet H. Vu, John D. Sillesky
  • Alkaline cell
    Patent number: 5283139
    Abstract: The present invention is an improved alkaline cell wherein the capacity of each of the anode and cathode is at least 0.48 and more preferably to at least 0.5 ampere-hour per cm.sup.3 of internal cell volume. This is achieved by employing zinc densities of at least 1.4 grams of zinc per cm.sup.3 of anode volume and MnO.sub.2 densities of at least 2.7 grams of MnO.sub.2 per cm.sup.3 of cathode volume.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: February 1, 1994
    Assignee: Duracell Inc.
    Inventors: Gerald H. Newman, G. Stephen Kelsey, Douglas C. Magnuson, Bhupendra K. Patel, Douglas J. Woodnorth, John S. Miller, Alfred M. Kasianowicz
  • High temperature solid state storage cell
    Patent number: 4397924
    Abstract: A completely solid state high temperature storage cell comprised of a solid rechargeable cathode such as TiS.sub.2, a solid electrolyte which remains solid at the high temperature operating conditions of the cell and which exhibits high ionic conductivity at such elevated temperatures such as an electrolyte comprised of lithium iodide, and a solid lithium or other alkali metal alloy anode (such as a lithium-silicon alloy) with 5-50% by weight of said anode being comprised of said solid electrolyte.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: August 9, 1983
    Assignee: Duracell Inc.
    Inventors: Jesse R. Rea, Milton Kallianidis, G. Stephen Kelsey
  • Polyvalent metal anode containing cells
    Patent number: 4184017
    Abstract: An electrochemical cell containing a polyvalent film forming metal anode, a nucleophilic non-aqueous electrolyte solvent and a free radical forming carbon halide additive dissolved in said solvent.
    Type: Grant
    Filed: January 24, 1979
    Date of Patent: January 15, 1980
    Assignee: P. R. Mallory & Co. Inc.
    Inventors: G. Stephen Kelsey, Arabinda N. Dey, Per Bro