Electricity: battery or capacitor charging or discharging – Battery or cell charging
Patent
1998-07-09
1999-12-28
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Battery or cell charging
320151, H02J 700
Patent
active
060086289
ABSTRACT:
A method for charging and monitoring a rechargeable battery is proposed. The charging method includes charging a rechargeable battery, sensing temperature of said battery, and calculating temperature change rate. The method further includes sensing voltage of said battery after the temperature change rate reaches a predetermined value, calculating voltage change rate, and reducing current sent to the battery when the voltage change rate reaches a predetermined value. A second embodiment of the charging method may include charging a rechargeable battery, sensing temperature and voltage of said battery, and calculating temperature and voltage change rates. The method further includes sensing for a maximum voltage change rate after the temperature change rate reaches a predetermined value, and reducing current sent to the battery when the maximum voltage change rate is sensed. In addition, the method may include sensing for a minimum voltage change rate before sensing for the maximum change rate, wherein sensing for the maximum change rate would begin after the temperature change rate reaches a predetermined value or after the minimum voltage change rate is sensed.
REFERENCES:
patent: 4125802 (1978-11-01), Godard
patent: 4308492 (1981-12-01), Mori et al.
patent: 4388582 (1983-06-01), Saar et al.
patent: 4392101 (1983-07-01), Saar et al.
patent: 5166596 (1992-11-01), Goedken
patent: 5329219 (1994-07-01), Garrett
patent: 5463305 (1995-10-01), Koenck
patent: 5504416 (1996-04-01), Holloway et al.
patent: 5519303 (1996-05-01), Goedken et al.
patent: 5550453 (1996-08-01), Bohne et al.
patent: 5563494 (1996-10-01), Cuesta et al.
patent: 5563496 (1996-10-01), Mc Clure
patent: 5714868 (1998-02-01), Uchida et al.
patent: 5744937 (1998-04-01), Cheon
patent: 5896024 (1999-04-01), Bradus et al.
Ayala Adan
Black & Decker Inc.
Luk Lawrence
Wong Peter S.
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