Alkaline cell with improved anode

Details Alkaline cell with improved anode Alkaline cell with improved anode

2011-08-23

2011-08-23

Ryan, Patrick (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231600, C429S231900, C429S224000, C429S206000, C429S229000

Reexamination Certificate

active

08003258

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.

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