Battery module
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United States of America Patent
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Nov 3, 2009
Grant Date -
Apr 24, 2008
app pub date -
Jan 29, 2007
filing date -
Oct 20, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A battery module includes a plurality of unit batteries, each of which includes an electrode assembly having positive and negative electrodes and a separator interposed therebetween, a casing which has an opened top face and stores the electrode assembly, and a cap assembly disposed on top of the casing. The battery module has an interconnection member which interconnects first and second unit batteries out of a plurality of the unit batteries by connecting a lower portion of the first unit battery with an upper portion of the second unit battery. Peripheral portions of the interconnection member are engaged with a recessed portion formed by making a step in the casing of the first unit battery.
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