Patents Assigned to Höganäa Ab
  • Method for improving the properties of alloy powders for NiMH batteries
    Patent number: 7056397
    Abstract: The invention concerns a method of improving the properties of a hydrogen storage alloy powder for a negative electrode of a rechargeable nickel hydride battery. The method comprises the steps of hydriding a powdered alloy starting material, oxidizing the obtained hydride alloy powder and washing the oxidized powder. The invention also concerns the obtained powder.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 6, 2006
    Assignee: Höganäa Ab
    Inventors: Dag Noréus, Ye Zhou