Patents by Inventor Kristina Edstrom

Kristina Edstrom 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).

  • Intermetallic negative electrodes for non-aqueous lithium cells and batteries
    Patent number: 6730429
    Abstract: A method of operating an electrochemical cell is disclosed. The cell has an intermetallic negative electrode of Cu6-xMxSn5, wherein x is ≦3 and M is one or more metals including Si and a positive electrode containing Li in which Li is shuttled between the positive electrode and the negative electrode during charge and discharge to form a lithiated intermetallic negative electrode during charge. The voltage of the electrochemical cell is controlled during the charge portion of the charge-discharge cycles so that the potential of the lithiated intermetallic negative electrode in the fully charged electrochemical cell is less than 0.2 V but greater than 0 V versus metallic lithium.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: May 4, 2004
    Assignee: The University of Chicago
    Inventors: Michael M. Thackeray, John T. Vaughey, Christopher S. Johnson, Linda M. L. Fransson, Ester Kristina Edstrom, Gary Henriksen
  • Vanadium oxide electrode materials and methods
    Patent number: 6653022
    Abstract: The present invention relates to the use of vanadium oxide nanotubes as electrode material in a rechargeable lithium battery. The invention further provides the method of making and uses for electrodes comprising vanadium oxide nanotubes.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 25, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sara Nordlinder, Kristina Edström, Torbjörn Gustafson
  • Vanadium oxide electrode materials and methods
    Publication number: 20020086212
    Abstract: The present invention relates to the use of vanadium oxide nanotubes as electrode material in a rechargeable lithium battery. The invention further provides the method of making and uses for electrodes comprising vanadium oxide nanotubes.
    Type: Application
    Filed: May 31, 2001
    Publication date: July 4, 2002
    Applicant: Ericsson Mobile Communications AB
    Inventors: Sara Nordlinder, Kristina Edstrom, Torbjorn Gustafson
  • Intermetallic negative electrodes for non-aqueous lithium cells and batteries
    Publication number: 20020064704
    Abstract: A method of operating an electrochemical cell is disclosed. The cell has an intermetallic negative electrode of Cu6-xMxSn5, wherein x is ≦3 and M is one or more metals including Si and a positive electrode containing Li in which Li is shuttled between the positive electrode and the negative electrode during charge and discharge to form a lithiated intermetallic negative electrode during charge. The voltage of the electrochemical cell is controlled during the charge portion of the charge-discharge cycles so that the potential of the lithiated intermetallic negative electrode in the fully charged electrochemical cell is less than 0.2 V but greater than 0 V versus metallic lithium.
    Type: Application
    Filed: November 8, 2001
    Publication date: May 30, 2002
    Inventors: Michael M. Thackeray, John T. Vaughey, Christopher S. Johnson, Linda M. L. Fransson, Ester Kristina Edstrom, Gary Henriksen