Patents Examined by Maria Nuzzollilo
  • Mercury-free primary alkaline cell
    Patent number: 6200699
    Abstract: A galvanic cell has an anode gel, an alkaline electrolyte, and a cathode material, separated from the anode gel by a separator. The anode gel has mercury-free zinc powder, and the cathode material has manganese dioxide, as well as salt-like calcium compounds in solid form.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: March 13, 2001
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Horst-Udo Jose, Hans-Joachim Feistner