| CPC H01M 50/20 (2021.01) [H01M 10/6568 (2015.04); H01M 50/529 (2021.01); H01M 10/613 (2015.04); H01M 10/643 (2015.04); H01M 10/655 (2015.04); H01M 10/6561 (2015.04); H01M 10/6567 (2015.04); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01)] | 20 Claims |
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1. A battery pack comprising:
battery cells, each comprising end portions in a height direction thereof;
a case accommodating the battery cells and a cooling fluid to cool the battery cells; and
a first holder plate and a second holder plate which are coupled to the case to face each other along the case such that the end portions of the battery cells are insertable through the first and second holder plates, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid,
wherein the case, the battery cells, and the first and second holder plates have heights in the height direction of the battery cells that satisfy the following condition:
a height between the first and second holder plates<a height of the battery cells<a height of the case,
the battery pack further comprises a potting resin on the first and second holder plates,
the case comprises a hollow member which is open in the height direction to accommodate the battery cells and the cooling fluid,
the case comprises: the accommodation space in a center portion thereof; and outer walls and inner walls extending in parallel to each other along edges of the case around the accommodation space, and
well spaces are defined between the outer walls and the inner walls along the edges of the case.
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