Method for ultra-rapidly charging a rechargeable battery using m

Details Method for ultra-rapidly charging a rechargeable battery using m Method for ultra-rapidly charging a rechargeable battery using m

1998-07-06

1999-11-16

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Means to identify cell or battery type

320152, 320162, 320DIG21, H02J 700, H02J 714

Patent

active

059864303

ABSTRACT:
A method (200) for charging a nickel cadmium, nickel-metal hydride or lithium-ion battery cell using an ultra-fast vehicular charging system includes determining (201, 203, 205) manufacturer identity, ultra-fast battery charging capability and battery capacity from the battery system to provide (207) battery type information. A direct current (DC) input voltage in a predetermined input supply voltage range is converted (211) to a an output supply current in a predetermined output voltage range. The predetermined output supply voltage is supplied (217) to the battery cell for recharging while a number of battery parameters are monitored (219) such as the battery cell voltage, charging current and temperature of the battery cell to generate monitoring information. Finally the output supply voltage and the charge current supplied to the battery cell are precisely controlled (223) based upon the battery type information and battery monitoring information in order to safely charge the battery within one-half hours time.

REFERENCES:
patent: 5111128 (1992-05-01), Branan, Jr. et al.
patent: 5237257 (1993-08-01), Johnson et al.
patent: 5572110 (1996-11-01), Dunstan
patent: 5602455 (1997-02-01), Stephens et al.
patent: 5773956 (1998-06-01), Wieczorek
patent: 5905358 (1999-05-01), Fernandez et al.

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