Patents by Inventor Paula Ralston

Paula Ralston 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: 20070248887
    Abstract: New wireless devices need better batteries, more powerful but still low cost. We have created one—a high-performance lithium-based battery using metal foam (or some other three-dimensional, fillable, conductive material) to make its electrodes. Our battery offers as much as 30% to 100% greater power and energy density. Similar increases in power and energy density typically increase costs tens or hundreds of times. Our increased performance adds no extra cost. Metal foam increases conductivity within the electrode. So electrodes can be made much thicker, but no more resistant. Thicker electrodes bring more power and more energy for the same volume and weight. Our high-performance, low-cost batteries can be used for small wireless devices like smart cards, for larger mobile devices like cell-phones, and even the high-power, high-energy batteries needed for cars. At all sizes, we provide more power and energy at the same cost.
    Type: Application
    Filed: April 21, 2006
    Publication date: October 25, 2007
    Inventors: Michael Eskra, Paula Ralston
  • Patent number: 6887620
    Abstract: The bipolar electrochemical battery of the invention comprises: a stack of at least two electrochemical cells electrically arranged in series with the positive face of each cell contacting the negative face of an adjacent cell, wherein each of the cells comprises (a) a negative electrode; (b) a positive electrode; (c) a separator between the electrodes, wherein the separator includes an electrolyte; (d) a first electrically conductive lamination comprising a first inner metal layer and a first polymeric outer layer, said first polymeric outer layer having at least one perforation therein to expose the first inner metal layer, said first electrically conductive lamination being in electrical contact with the outer face of the negative electrode; and (e) a second electrically conductive lamination comprising a second inner metal layer and a second polymeric outer layer, said second polymeric outer layer having at least one perforation therein to expose the second inner metal layer, said second electrically c
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: May 3, 2005
    Assignee: Electro Energy, Inc.
    Inventors: Martin G. Klein, Paula Ralston, Robert Plivelich
  • Publication number: 20030138691
    Abstract: The bipolar electrochemical battery of the invention comprises:
    Type: Application
    Filed: January 6, 2003
    Publication date: July 24, 2003
    Inventors: Martin G. Klein, Paula Ralston, Robert Plivelich
  • Publication number: 20030013015
    Abstract: The bipolar electrochemical battery of the invention comprises:
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventors: Martin G. Klein, Paula Ralston, Robert Plivelich
  • Patent number: 6503658
    Abstract: The bipolar electrochemical battery of the invention comprises: a stack of at least two electrochemical cells electrically arranged in series with the positive face of each cell contacting the negative face of an adjacent cell, wherein each of the cells comprises (a) a negative electrode; (b) a positive electrode; (c) a separator between the electrodes, wherein the separator includes an electrolyte; (d) a first electrically conductive lamination comprising a first inner metal layer and a first polymeric outer layer, said first polymeric outer layer having at least one perforation therein to expose the first inner metal layer, said first electrically conductive lamination being in electrical contact with the outer face of the negative electrode; and (e) a second electrically conductive lamination comprising a second inner metal layer and a second polymeric outer layer, said second polymeric outer layer having at least one perforation therein to expose the second inner metal layer, said second electricall
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 7, 2003
    Assignee: Electro Energy, Inc.
    Inventors: Martin G. Klein, Paula Ralston, Robert Plivelich