Method and apparatus for indicating electric charge remaining in

Details Method and apparatus for indicating electric charge remaining in Method and apparatus for indicating electric charge remaining in

1994-08-11

1996-12-03

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

429 91, H01M 1048

Patent

active

055806759

ABSTRACT:
In most electrochemical batteries which generate electricity through the reaction of a battery electrode with an electrolyte solution, the chemical composition, and thus the weight and density, of the electrode changes as the battery discharges. The invention measures a parameter of the battery which changes as the weight of the electrode changes as the battery discharges and relates that parameter to the value of the parameter when the battery is fully charged and when the battery is functionally discharged to determine the state-of-charge of the battery at the time the parameter is measured. In one embodiment, the weight of a battery electrode or electrode unit is measured to determine the state-of-charge. In other embodiments, where a battery electrode is located away from the geometrical center of the battery, the position of the center of gravity of the battery or shift in the position of the center of gravity of the battery is measured (the position of the center of gravity changes with the change in weight of the electrode) and indicates the state-of-charge of the battery.

REFERENCES:
patent: 3484681 (1969-12-01), Grady
patent: 3617850 (1971-11-01), Domshy
patent: 3895284 (1975-07-01), Schweizer et al.
patent: 3898548 (1975-08-01), Perelle et al.
patent: 3906329 (1975-09-01), Bader
patent: 4203065 (1980-05-01), Whitford
patent: 4307330 (1981-12-01), Belot
patent: 4308817 (1982-01-01), Peterson
patent: 4539270 (1985-09-01), Mejia
patent: 4581122 (1986-04-01), Hammond et al.
patent: 4989453 (1991-02-01), Hiiesalu
patent: 5315228 (1994-05-01), Hess et al.
patent: 5315253 (1994-05-01), Alexandres et al.

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