Silver oxide-zinc primary cell with magnesium oxide

Abstract

Abstract A silver oxide-zinc primary cell is disclosed which comprises a casing, a zinc anode positioned in the casing, a separator on each side of the anode, a silver oxide cathode on each side of the anode adjacent each separator and spaced from the anode, and magnesium oxide powder contained within the cell. A method is disclosed for activating such a cell which does not contain the magnesium oxide powder which comprises mixing together 5 to 40 weight percent of magnesium oxide powder in an aqueous alkaline electrolyte thereby forming a pourable electrolytic solution, filling the assembled cell with the electrolytic solution, and allowing the viscosity of the solution to increase prior to discharging the cell. A method is also disclosed for forming such a cell wherein magnesium oxide powder is added to the cell during assembly, and the assembled cell is filled with an aqueous alkaline electrolyte prior to use. In both of these methods upon activation of the previously assembled cell, a high viscosity electrolytic solution results thereby preventing silver migration to the anode and other cell components.

Inventors

• 👤 R Hamlen
• 👤 E Jerabek

Bibliographic Details