Method for charging secondary batteries

Details Method for charging secondary batteries Method for charging secondary batteries

1997-11-28

1999-05-11

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320164, H01M10/44

Patent

active

059031360

ABSTRACT:
During the charging of a secondary battery, the charging current is maintained, but the value of the current is changed for a short time, and the internal resistance of the battery is calculated from the voltage and the current before and after the changing of the charging current. The charging voltage is determined by adding an extra voltage equivalent to the voltage drop caused by the internal resistance to a designated voltage. Thus, it takes only a short time for stabilizing the voltage when the current is changed, because the charging current is not switched off completely. Therefore, the charging time can be shortened.

REFERENCES:
patent: 4246529 (1981-01-01), Jurgens et al.
patent: 5160880 (1992-11-01), Palanisamy

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