Variable precision multivoltage step battery

Details Variable precision multivoltage step battery Variable precision multivoltage step battery

1975-10-20

1977-05-24

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

429218, 429222, H01M 600

Patent

active

040257002

ABSTRACT:
To provide an indication that a predetermined amount of the energy of a cell has been used up, the positive electrode is formulated with two or more ingredients having different electrochemical potentials relative to the negative electrode. As each ingredient is used up, the voltage between the electrodes drops to the next potential difference, thereby indicating a predetermined quantity of energy has been used, and that the remaining reserve is at or less than the amount at which the voltage is predesigned to drop.
The use of such a step voltage cell in a battery provides a measure of the condition of the battery when the voltage drops, due to the voltage drop in such pilot cell.

REFERENCES:
patent: 2942052 (1960-06-01), Bourke et al.
patent: 3520729 (1970-07-01), Voss et al.
patent: 3757793 (1973-09-01), Fester
patent: 3781657 (1973-12-01), Dennstedt
patent: 3827916 (1974-08-01), Fagan, Jr.

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