ELECTRIC POWER SOURCE DEVICE
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United States of America Patent
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Issued Date -
Dec 8, 2011
app pub date -
Jun 3, 2011
filing date -
Jun 4, 2010
priority date (Note) -
Abandoned
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Abstract
An electric power source device has multiple layered battery cells which are electrically connected in series and/or in parallel. The battery cells are accommodated in a battery casing, which has a heat insulating structure at a portion surrounding the battery cells. The power source device further has a heating unit between lower surfaces of the battery cells and a bottom plate of the battery casing. A heat storage layer is further provided between the heating unit and the bottom plate for storing the heat generated at the heating unit.
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