Method and apparatus for charging a battery

Details Method and apparatus for charging a battery Method and apparatus for charging a battery

H - Electricity

02

J

320/12, 324/24

H02J 7/00 (2006.01) G01R 31/36 (2006.01) H01M 10/44 (2006.01)

Patent

CA 1185319

METHOD AND APPARATUS FOR CHARGING A BATTERY ABSTRACT OF THE DISCLOSURE A battery is charged by repeatedly alternating between test and charge cycles. During the test cycle, the dynamic voltage-current characteristic of the battery is obtained as a function of the charge condition of the battery. During the charge cycle, a gradually varying voltage is supplied to the battery, substantially without controlling the current supplied thereto, for a predeter- mined time. The rate at which this supplied voltage varies is related to the dynamic voltage-current characteristic obtained during the test cycle. Alternating between test and charge cycles continues until the dynamic voltage-current characteristic last obtained is substantially identical to the preceding dynamic voltage-current characteristic, whereupon the charging of the battery is terminated. -i-

401469

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