Alkaline cell

Details Alkaline cell Alkaline cell

1980-09-15

1983-03-15

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

429218, 429229, 429230, H01M 1048

Patent

active

043768105

ABSTRACT:
An electrochemical alkaline cell of the type comprising an anode, cathode and electrolyte for generating electrical energy and exhibiting an output discharge voltage comprises a consumable anode composed of zinc-indium-mercury alloy. The indium constituent is present in an amount of from more than 2% to 10% by weight and the mercury constituent is present in an amount 2% to 14% by weight with respect to the weight amount of the zinc constituent thereby obtaining a cell discharge voltage at one voltage level during substantially the whole useful life of the cell due to consumption of the zinc constituent followed by an abrupt lowering of the cell discharge voltage to a distinctly lower voltage level for the remainder of the cell useful life due to consumption of the indium and mercury constituents. The abrupt change of the cell discharge voltage to the lower level signifies that the cell is near exhaustion and should be replaced.

REFERENCES:
patent: 2942052 (1960-06-01), Bourke et al.
patent: 2982705 (1961-05-01), Sakane et al.
patent: 3427203 (1969-02-01), Fletcher
patent: 3615858 (1971-10-01), Soto-Krebs
patent: 3757793 (1973-09-01), Fester et al.
patent: 3945851 (1976-03-01), Mote et al.
patent: 4025700 (1977-05-01), Fagan, Jr. et al.
patent: 4144382 (1979-03-01), Takeda et al.

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