Method for accelerating the depolarization of a polarized battery to facilitate battery testing
AssigneeAlliedSignal Inc.
InventorsThirumalai Gounder Palanisamy, John Anthony Hosty, Harmohan Narinjan Singh
Life of this patent
Estimating the term…
Abstract
A method for depolarizing polarized batteries before determining the capacity of the battery by first discharging the polarized battery for a minimum time of about thirty seconds and under a current load of about 0.5 amps and then sensing the battery terminal voltage and discharging the battery again if the rate of change of the battery voltage exceeds 10 mV/30 seconds or the voltage to cell ration exceeds 2.13.
Claims16
A method for depolarizing a polarized battery having a declining open circuit voltage comprising the steps:
- a. discharging said polarized battery;
- b. sensing said open circuit voltage;
- and
- c. repeating step (a) if said open circuit voltage continues to decline above a minimum rate.
A method for depolarizing a polarized battery having a declining open circuit voltage comprising the steps:
- a. discharging said polarized battery until said open circuit voltage decreases an amount of no less than 0.1 volts;
- b. sensing said open circuit voltage;
- and
- c. repeating step (a) if said open circuit voltage continues to decline above a minimum rate.
A method for depolarizing a polarized battery having an open circuit voltage that exceeds a minimum voltage to cell ratio comprising the steps:
- a. discharging said polarized battery;
- b. sensing said open circuit voltage;
- and
- c. repeating step (a) if said voltage to cell ratio exceeds said minimum voltage to cell ratio.
A method for depolarizing a polarized battery comprising the steps:
- a. discharging said polarized battery;
- b. sensing a maximum peak open circuit voltage;
- and
- c. repeating step (a) if said maximum peak open circuit voltage is greater than a predetermined minimum open circuit voltage.
Dependencies are inferred from the claim text.