Method and apparatus for compulsory discharging lithium-ion batt

Details Method and apparatus for compulsory discharging lithium-ion batt Method and apparatus for compulsory discharging lithium-ion batt

1994-10-20

1997-03-04

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, 320 31, 320 32, 320 39, H01M 1044, H01M 1046

Patent

active

056083050

ABSTRACT:
A method and apparatus for protecting a secondary battery initially judges whether or not the secondary battery, previously charged to a capacity more than a predetermined capacity, has been discharged to a capacity less than the predetermined capacity within a predetermined time. Then, compulsorily discharging at the secondary battery is effected until it has a capacity less than the predetermined capacity when it is judged that the secondary battery has not been discharged to a capacity less than the predetermined capacity.

REFERENCES:
patent: 5442274 (1995-08-01), Tamai
patent: 5475294 (1995-12-01), Isoda
"Nikkei Electronics", Apr. 26, 1993 (No. 579).

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