Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Reexamination Certificate
2006-12-27
2009-12-15
Tso, Edward (Department: 2858)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
C320S149000, C320S155000, C320S133000, C324S426000, C340S636100, C340S636210
Reexamination Certificate
active
07633265
ABSTRACT:
A secondary-battery management apparatus calculates the possible discharge duration of a secondary battery correctly even after a load current changes. The secondary-battery management apparatus calculates the remaining capacity and the remaining lifetime of the secondary battery in accordance with a measured temperature of the battery in a standby state, calculates the remaining capacity of the battery in accordance with a measured discharging current of the battery while the battery is in a discharging state, and calculates the remaining capacity of the battery in accordance with a measured charging current while the battery is in a charging state. When discharging from the battery is required by means of a reduction of an output voltage of a rectifier, the deterioration of the battery is checked by discharging to a load device. A battery capacity is checked by measuring the discharge duration of the battery in the discharge by the load current pattern.
REFERENCES:
patent: 5936383 (1999-08-01), Ng et al.
patent: 2005/0029988 (2005-02-01), Tran
patent: 2004-64978 (2004-02-01), None
K. Takeno et al., “Method of Energy Conservation and Management for Commercial Li-ion Battery Packs of Mobile Phones”, IEICE/IEEE, INTELEC′ 03, Oct. 19-23, 2003, 15-1, pp. 310-316, Japan (2003).
K. Takahashi et al., “Development of SOH Monitoring System for Industrial VRLA Battery String”, IEICE/IEEE, INTELEC′ 03, Oct. 19-23, 2003, 35-1, pp. 664-670, Japan (2003).
T. Fukunaga et al., “Development of Lithium-ion Battery for Electric Vehicle—Challenge to 2000km/24 hours Driving -”, GS News Technical Report, vol. 59, No. 2, pp. 23-28, Japan (Dec. 2000).
J. Yamagi et al, “2001 Battery Technology Symposium”, JMA Techno-Frontier Week 2001, Japan Management Association, Session 4, p. 4-2-1-p. 4-2-9, Japan (2001).
Matsushima Toshio
Susuki Nobuhiko
Wakaki Hiroshi
Fantu Yalkew
NTT Facilities, Inc.
Rader & Fishman & Grauer, PLLC
Tso Edward
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