Battery system
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United States of America Patent
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Aug 17, 2021
Grant Date -
N/A
app pub date -
Sep 28, 2017
filing date -
Nov 4, 2016
priority date (Note) -
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Abstract
The present invention relates to a battery system including at least one aligned battery cell arranged along a first direction. Each of aligned battery cells includes a battery case in which an electrode assembly is accommodated, a cap assembly disposed in the battery case, and a vent hole provided in the cap assembly. The battery system further includes a battery system cover for covering the aligned battery cells. The battery system cover includes at least one ridge portion disposed on a lower surface thereof to face the aligned battery cells. The ridge portion extends along the first direction to be aligned with the vent holes formed in the aligned battery cells, and the ridge portion deflects the gas ejected from the vent holes along a second direction that is substantially perpendicular to the first direction. The gas ejected from the battery cells is distributed away from the adjacent cells disposed along the first direction so that the battery system may reduce the risk of thermal runaway propagation.
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