Patents by Inventor Ralph Brodd

Ralph 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).

  • SECONDARY ELECTROCHEMICAL CELL WITH INCREASED CURRENT COLLECTING EFFICIENCY
    Publication number: 20070298317
    Abstract: The invention provides a cylindrical electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to the first electrode, and an electrolyte. The first electrode includes a polyanion-based electrode active material.
    Type: Application
    Filed: May 9, 2007
    Publication date: December 27, 2007
    Inventors: Ralph Brodd, Robert Hyland, James Akridge
  • Method for removing acidic impurities in a solid electrolyte
    Patent number: 6361902
    Abstract: A method for removing HF from a solid electrolyte using alumina is disclosed. The solid electrolyte contains a polymeric matrix, a salt, a solvent, and a toughening agent. The toughening agent may include alumina, silica, zeolite, and metal oxides (e.g., calcium oxide and magnesium oxide), and mixtures thereof. The toughening agent acts as a drying agent to remove excess solvent in the electrolyte. The solid electrolytes have improved mechanical strength and adherence to the anode and cathode.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: March 26, 2002
    Assignee: Valence Technology, Inc.
    Inventors: Ralph Brodd, Benjamin Chaloner-Gill, Milton Neal Golovin, Mark Isaacson, Joseph Lundquist
  • Solid electrolytes containing toughening agents and electrolytic cells produced therefrom
    Patent number: 6156458
    Abstract: A solid electrolyte containing a polymeric matrix, a salt, a solvent, and a toughening agent, is provided. The toughening agent may include alumina, silica, zeolite, and metal oxides (e.g., calcium oxide and magnesium oxide), and mixtures thereof. The toughening agent acts as a drying agent to remove excess solvent in the electrolyte. The solid electrolyte have improved mechanical strength and adherence to the anode and cathode.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: December 5, 2000
    Assignee: Valence Technology, Inc.
    Inventors: Ralph Brodd, Benjamin Chaloner-Gill, Milton Neal Golovin, Mark Isaacson, Joseph Lundquist