Method and system for determining the SOC of a rechargeable...

Details Method and system for determining the SOC of a rechargeable... Method and system for determining the SOC of a rechargeable...

2011-02-15

2011-02-15

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S159000, C320S164000

Reexamination Certificate

active

07888911

ABSTRACT:
A method of determining the state of charge (SOC) of a rechargeable battery, the method comprising charging the battery using a substantially constant charge current; measuring the battery temperature; and conducting a first measurement of the battery voltage at a time interval, t1, from the start of the charging, and a second measurement of the battery voltage at a time interval, t2, from the first measurement.

REFERENCES:
patent: 5557190 (1996-09-01), Brotto
patent: 5578915 (1996-11-01), Crouch, Jr. et al.
patent: 5619118 (1997-04-01), Reipur et al.
patent: 5808445 (1998-09-01), Aylor et al.
patent: 2005/0099161 (2005-05-01), Sato
patent: 2006/0232277 (2006-10-01), Murakami et al.

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