LITHIUM ION BATTERY PACK
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
Oct 29, 2010
filing date -
Oct 29, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A lithium iron phosphate battery pack is disclosed. The battery pack includes a plurality of battery cells, arranged as groups of cells, a controller circuit, and a plurality of intercell tabs coupling the groups of battery cells to the controller circuit. The controller circuit includes a voltage sensor for monitoring the voltage across each of the groups of cells. If one of the groups has a voltage that is lower or higher than a respective lower or upper threshold voltage, the controller circuit will shut off the charge/discharge cycling of all the groups of cells. In doing so, the controller circuit protects the entire battery pack during charge/discharge cycling.
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