Alkaline cell with improved anode
AssigneeThe Gillette Company
InventorsNikolai Issaev, Michael Pozin
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Abstract
An alkaline cell having an anode mixture comprising zinc particles, aqueous alkaline electrolyte, and molecular sieve additive. The cathode preferably comprises manganese dioxide. The cell may be cylindrical or any other shape or size. The molecular sieve additive preferably comprises a crystalline aluminosilicate material which is in at least a partially dehydrated state before admixture with the aqueous electrolyte, preferably potassium hydroxide. The aluminosilicate crystalline structure has average pore size between about 3 and 25 Angstrom. The addition of the molecular sieves to the zinc anode improves the cell's discharge capacity and service life. The molecular sieves preferably comprises between about 0.07 and 0.7 percent by weight of the anode mixture.
Claims37
An alkaline cell comprising an anode mixture comprising zinc particles and aqueous alkaline electrolyte;
- and a cathode mixture comprising cathode active material;
- wherein the anode mixture further comprises molecular sieves.
An alkaline cell comprising an anode mixture comprising zinc particles and aqueous alkaline electrolyte comprising potassium hydroxide;
- and a cathode mixture comprising manganese dioxide;
- wherein the anode mixture further comprises molecular sieves.
Dependencies are inferred from the claim text.