| CPC H01M 10/6555 (2015.04) [H01M 10/647 (2015.04); H01M 50/209 (2021.01); H01M 50/227 (2021.01); H01M 50/233 (2021.01)] | 9 Claims |
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1. A battery pack comprising:
a battery stack including a plurality of prismatic batteries being stacked along a first direction; and
a cooling plate including:
a plurality of coolant passages, arranged in the first direction and each extending in a second direction crossing the first direction and allowing a coolant to flow; and
a heat conduction inhibitor configured to inhibit heat conduction in the first direction, and extending in the second direction, wherein:
the heat conduction inhibitor includes a groove extending in the second direction and having an opening at an upper surface of the cooling plate in a thickness direction of the cooling plate and a depth in the thickness direction of the cooling plate larger than a largest inner dimension of the groove in the first direction,
a bottom of the groove is further from the battery stack than any portion in an inner surface of each of the plurality of coolant passages in the thickness direction,
the heat conduction inhibitor is disposed between adjacent two of the plurality of coolant passages when viewed in the thickness direction of the cooling plate,
the battery stack includes intercell separators each disposed between two of the prismatic batteries adjacent to each other in the first direction and exhibiting insulation,
a dimension of the heat conduction inhibitor in the first direction is smaller than a dimension of each of the intercell separators in the first direction, and
the heat conduction inhibitor overlaps with a corresponding one of the intercell separators when viewed in the thickness direction of the cooling plate.
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