Battery pack
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United States of America
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Apr 12, 2022
Grant Date -
Sep 26, 2019
app pub date -
Nov 17, 2017
filing date -
Nov 17, 2017
priority date (Note) -
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Abstract
A battery pack having an air communication passage communicating the interior of the battery pack accommodating battery cells with the exterior of the battery pack, and configured to prevent moisture from reaching the battery cells. The battery pack includes a housing having outer and inner bottom plates, and defining a primary chamber for accommodating battery cells and a secondary chamber between the outer and inner bottom plates. The housing includes an air communication passage communicating the secondary chamber with an exterior of the housing. A part of a bottom surface of the inner bottom plate adjacent to an upright wall inclines upward with respect to a reference surface of the bottom surface of the inner bottom plate away from the outer bottom plate toward the upright wall. The air communication passage includes a first communication hole having an edge located above the reference surface of the inner bottom plate.
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