METHOD AND CIRCUITRY TO ADAPTIVELY CHARGE A BATTERY/CELL
First Claim
1. A method of controlling at least one characteristic of a charging process for a battery having positive and negative terminals, the method comprising:
- (a) applying charge to the terminals of the battery at a first current;
(b) measuring a terminal voltage between the terminals of the battery multiple times or continuously over a period of time that includes at least when the first current is applied to the battery;
(c) from the measurements of the terminal voltage in (b), determining whether one or more values of the measured terminal voltage are outside a predetermined range or greater than a predetermined upper limit value; and
(d) based on the determination in (c), controlling at least one characteristic of a charging process for the battery.
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Accused Products
Abstract
The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a charge pulse to the terminals of the battery during a charging operation, measure a plurality of voltages of the battery which are in response to the first charge pulse, determine a charge pulse voltage (CPV) of the battery, wherein the charge pulse voltage is a peak voltage which is in response to the first charge pulse, determine whether the CPV of the battery is within a predetermined range or greater than a predetermined upper limit value and adapt one or more characteristics of a charge packet if the CPV is outside the predetermined range or is greater than a predetermined upper limit value.
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Citations
19 Claims
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1. A method of controlling at least one characteristic of a charging process for a battery having positive and negative terminals, the method comprising:
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(a) applying charge to the terminals of the battery at a first current; (b) measuring a terminal voltage between the terminals of the battery multiple times or continuously over a period of time that includes at least when the first current is applied to the battery; (c) from the measurements of the terminal voltage in (b), determining whether one or more values of the measured terminal voltage are outside a predetermined range or greater than a predetermined upper limit value; and (d) based on the determination in (c), controlling at least one characteristic of a charging process for the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification