Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – Having variable number of cells or batteries in series
Patent
2000-01-28
2000-09-19
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
Having variable number of cells or batteries in series
H01M 1044, H01M 1046
Patent
active
061217522
ABSTRACT:
A battery assembly unit and a method of charging the same for applying constant current/constant voltage charging to a battery assembly in which a plurality of battery cell groups each having battery cells each being rechargeable and increasable in electromotive force as charging proceeds are connected in series. There are provided a reference charging voltage circuit for generating charging reference voltages serving as voltages referenced to electromotive force levels of the individual battery cell groups on the basis of charging voltage applied across the battery assembly and changeable with time, and comparison circuits each adapted to compare an electromotive force level across each of the plurality of battery cell groups connected in series with the charging reference voltage. Further, bypass circuits are provided each of which connected in parallel across each of the plurality of battery cell groups connected in series and when an electromotive force of a battery cell group exceeds the charging reference voltage, bypasses the charging current by an amount corresponding to a difference.
REFERENCES:
patent: 4614905 (1986-09-01), Petersson et al.
Ishii Masato
Kitahara Jun
Miyata Junichi
Saitou Ken-ichi
Takeoka Hitoshi
Hitachi , Ltd.
Tso Edward H.
LandOfFree
Battery unit having a plurality of rechargeable battery cells an 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 unit having a plurality of rechargeable battery cells an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery unit having a plurality of rechargeable battery cells an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1076677