Patents by Inventor Ralph J. Brodd

Ralph J. Brodd 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).

  • Process and apparatus for producing thin lithium coatings on electrically conductive foil for use in solid state rechargeable electrochemical cells
    Patent number: 5522955
    Abstract: The present invention provides a novel process and apparatus for coating electrically conductive substrate with alkali metal by vacuum metallizing. Novel methods and apparatus are provided to protect the alkali metal surface against atmospheric degradation. The alkali metal coated substrate prepared according to this invention can be used as an anode in electrochemical batteries.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: June 4, 1996
    Inventor: Ralph J. Brodd
  • Equalizing charge rates of individual battery cells
    Patent number: 5498490
    Abstract: Charge rates of individual battery cells are equalized and battery safety increased by limiting the amount of current that will flow through the battery in the event of a short circuit either external to or internal to the battery.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: March 12, 1996
    Inventor: Ralph J. Brodd
  • Solid electochemical cell of improved capacity and cycling capability having surfactant in vanadium oxide cathode mixture
    Patent number: 5358801
    Abstract: Vanadium oxide cathode mixtures which comprise a vanadium oxide cathode material in combination with one or more surface active agents and the incorporation thereof in electrochemical cells as a means for enhancing cumulative capacity and cycling capacity of such cells.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: October 25, 1994
    Assignee: Valence Technology, Inc.
    Inventor: Ralph J. Brodd
  • Lithium ion-containing organic electrolyte
    Patent number: 4167458
    Abstract: A lithium ion-containing solvent-electrolyte suitable for the electrodeposition of lithium in electrochemical cells, said electrolyte comprising lithium fluoroborate dissolved in a mixture of methylene chloride and sulfolane and/or the alkyl-substituted derivatives thereof.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: September 11, 1979
    Assignee: Union Carbide Corporation
    Inventors: Demetrios V. Louzos, Ralph J. Brodd