Electricity: battery or capacitor charging or discharging – Battery or cell charging – With peak detection of current or voltage
Patent
1998-01-02
2000-03-28
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Battery or cell charging
With peak detection of current or voltage
320161, H01M 740
Patent
active
06043631&
ABSTRACT:
A method of charging a rechargeable battery which comprises charging the battery with a charging current; sampling a charging voltage of the battery during charging to recognize potential adverse conditions within the battery; interrupting the charging current periodically to create current-free periods and sampling an open circuit voltage of the battery at a plurality of points during each current-free period to identify potential overcharge conditions in the battery; lowering the charging current if any of the above-identified adverse conditions are identified and continuing charging with the charging current if the potential adverse charging condition is not identified; and terminating charging when a negative slope on a chemical polarization versus time curve is identified below a pre-determined minimum level. The battery charger and method of the present invention may also be utilized to determine the type, design, and chemistry of the battery being charged based on pre-determined chemical polarization values.
REFERENCES:
patent: 3487284 (1969-12-01), Cady
patent: 3890556 (1975-06-01), Melling et al.
patent: 3911349 (1975-10-01), Seeley et al.
patent: 3911350 (1975-10-01), Swope
patent: 3953302 (1976-04-01), Rao et al.
patent: 4016473 (1977-04-01), Newman
patent: 4079303 (1978-03-01), Cox
patent: 4086525 (1978-04-01), Ibsen et al.
patent: 4139680 (1979-02-01), Schlaikjer
patent: 4345008 (1982-08-01), Breault
patent: 4385269 (1983-05-01), Aspinwall et al.
patent: 4388582 (1983-06-01), Saar et al.
patent: 4392101 (1983-07-01), Saar et al.
patent: 4414291 (1983-11-01), Breault
patent: 4554500 (1985-11-01), Sokira
patent: 4560937 (1985-12-01), Finger
patent: 4680528 (1987-07-01), Mikami et al.
patent: 4725784 (1988-02-01), Peled et al.
patent: 4746854 (1988-05-01), Baker et al.
patent: 4761487 (1988-08-01), Godshall
patent: 4806840 (1989-02-01), Alexander et al.
patent: 5017856 (1991-05-01), Johnson, Jr.
patent: 5057762 (1991-10-01), Goedken et al.
patent: 5119009 (1992-06-01), McCaleb et al.
patent: 5132626 (1992-07-01), Limuti et al.
patent: 5143799 (1992-09-01), Tsenter
patent: 5157320 (1992-10-01), Kuriloff
patent: 5166596 (1992-11-01), Goedken
patent: 5179335 (1993-01-01), Nor
patent: 5200689 (1993-04-01), Interiano et al.
patent: 5206578 (1993-04-01), Nor
patent: 5237257 (1993-08-01), Johnson et al.
patent: 5278000 (1994-01-01), Huang et al.
patent: 5290640 (1994-03-01), Tsenter et al.
patent: 5291117 (1994-03-01), Rydborn
patent: 5296997 (1994-03-01), Betton et al.
patent: 5304915 (1994-04-01), Sanpei et al.
patent: 5304917 (1994-04-01), Somerville
patent: 5307000 (1994-04-01), Podrazhansky et al.
patent: 5321347 (1994-06-01), Chien
patent: 5329219 (1994-07-01), Garrett
patent: 5330861 (1994-07-01), Fetcenko et al.
patent: 5331268 (1994-07-01), Patino et al.
patent: 5343380 (1994-08-01), Champlin
patent: 5349281 (1994-09-01), Bugaj
patent: 5350995 (1994-09-01), Iketani
patent: 5350996 (1994-09-01), Tauchi
patent: 5352967 (1994-10-01), Nutz et al.
patent: 5365160 (1994-11-01), Leppo et al.
patent: 5369364 (1994-11-01), Renirie et al.
patent: 5376873 (1994-12-01), Toya
patent: 5391193 (1995-02-01), Thompson
patent: 5396163 (1995-03-01), Nor et al.
patent: 5408170 (1995-04-01), Umetsu et al.
patent: 5411537 (1995-05-01), Munshi et al.
patent: 5412306 (1995-05-01), Meadows et al.
patent: 5418084 (1995-05-01), Georgopoulos
patent: 5422559 (1995-06-01), Hall et al.
patent: 5432029 (1995-07-01), Mitate et al.
patent: 5432426 (1995-07-01), Yoshida
patent: 5432429 (1995-07-01), Armstrong, II et al.
patent: 5440221 (1995-08-01), Landau et al.
patent: 5442274 (1995-08-01), Tamai
patent: 5444353 (1995-08-01), Shinohara
patent: 5449996 (1995-09-01), Matsumoto et al.
patent: 5449997 (1995-09-01), Gilmore et al.
patent: 5460899 (1995-10-01), Charkey
patent: 5467005 (1995-11-01), Matsumoto et al.
patent: 5477125 (1995-12-01), Ettel et al.
patent: 5483165 (1996-01-01), Cameron et al.
patent: 5489836 (1996-02-01), Yuen
patent: 5498492 (1996-03-01), Hara et al.
patent: 5500583 (1996-03-01), Buckley et al.
patent: 5541492 (1996-07-01), Fernandez
patent: 5729116 (1998-03-01), Tsenter
patent: 5900718 (1999-05-01), Tsenter
Damon W. Chu, "Tradeoffs in Implementing Intelligent Battery Management", Jul. 10, 1995, 6 pgs.
David Freeman, "Freeing Portables from Battery Tyranny, " Jul. 10, 1995, 6 pgs.
Miller Raymond A.
Toatley , Jr. Gregory J.
Total Battery Management, Inc.
Wong Peter S.
LandOfFree
Battery charger and method of charging rechargeable batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Battery charger and method of charging rechargeable batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charger and method of charging rechargeable batteries will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1328766