Title:
METHOD OF BOOSTING CHARGE FOR SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP3174481
Kind Code:
B2
Abstract:
PURPOSE: To carry out boosting charge for a secondary battery with large internal resistance in a short time.
CONSTITUTION: In a boosting charge method, a secondary battery 1 is charmed by a charging power supply 2 with constant voltage and constant current as an output. A voltage ΔVCHG corresponding to a voltage drop caused by a resistor R2 in a charging circuit and an inner resistor R1 and a rating voltage VCHG are added to feed a voltage (VCHG+ΔVCHG) as a charging control voltage for the secondary battery l. When the output voltage of the charging power supply 2 attains the charging control voltage, the charging is stopped, and then the charging with the constant current is carried out to realize the boosting charge.
Inventors:
Hirokazu Hasegawa
Application Number:
JP16560995A
Publication Date:
June 11, 2001
Filing Date:
June 30, 1995
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H02J7/04; H01M10/44; H02J7/10; (IPC1-7): H02J7/10
Domestic Patent References:
| JP7240235A |
Attorney, Agent or Firm:
Masaru Ishihara
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