Method for accelerating the depolarization of a polarized battery to facilitate battery testing
First Claim
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1. 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.
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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.
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Citations
16 Claims
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1. A method for depolarizing a polarized battery having a declining open circuit voltage comprising the steps:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for depolarizing a polarized battery having a declining open circuit voltage comprising the steps:
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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. - View Dependent Claims (9, 10)
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11. A method for depolarizing a polarized battery having an open circuit voltage that exceeds a minimum voltage to cell ratio comprising the steps:
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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. - View Dependent Claims (12, 13, 14, 15)
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16. A method for depolarizing a polarized battery comprising the steps:
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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.
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Specification