Battery pack
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United States of America Patent
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-
Jul 16, 2002
Grant Date -
Jun 13, 2002
app pub date -
Aug 19, 1999
filing date -
Aug 21, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
When any one or ones of at least two cells connected in parallel together is judged to be faulty by a cell failure detector, it is electrically disconnected to the normal other cells. Alternatively, when any one or ones of at least two cells connected in series together is judged to be faulty by a controller, a cell current interrupter is shifted from a connected position to a disconnected position connected in series to the faulty cell to interrupt a current line while a cell short-circuit device connected in parallel to the faulty cell by the cell current interrupter is shifted from a disconnected position to a connected position, thereby shorting a circuit portion corresponding to the faulty cell.
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