Patents Assigned to Battery Technologies, Inc.
  • Additives for rechargeable alkaline manganese dioxide cells
    Patent number: 6361899
    Abstract: Rechargeable galvanic cells are disclosed which comprise a manganese dioxide cathode, a zinc anode and a potassium hydroxide electrolyte wherein the cathode includes additive compounds to increase the cumulative discharge capacity of the cell thereby increasing its cycle life. The additives consist of a) barium or strontium compounds, and mixtures thereof, and b) titanium, lanthanum, yttrium, cerium, zinc, calcium, tin or magnesium compounds, and mixtures thereof.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: March 26, 2002
    Assignee: Battery Technologies, Inc.
    Inventors: Josef Daniel-Ivad, Elfriede Daniel-Ivad, James R. Book