| CPC H01M 50/242 (2021.01) [H01M 50/211 (2021.01); H01M 50/258 (2021.01); H01M 50/262 (2021.01); H01M 50/271 (2021.01); H01M 2220/20 (2013.01)] | 19 Claims |
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1. A battery pack comprising:
a plurality of battery cell stacks, each battery cell stack having a plurality of battery cells stacked in a first direction;
a pack tray in which the plurality of battery cell stacks are accommodated in a plurality of rows extending in a second direction perpendicular to the first direction, each row having multiple battery cell stacks arranged in the second direction, the pack tray including:
a base;
a plurality of sidewalls extending from the base at the perimeter of the base;
a plurality of first beams extending in the second direction to separate the plurality of rows into groups having two rows; and
a plurality of partition walls extending in the second direction, each partition wall being located within a corresponding group to separate adjacent battery cells stacks from each other;
a pack cover covering an opening portion of the pack tray opposite the base; and
a plurality of elastic members, each elastic member located between a top of a corresponding battery cell stack and the pack cover,
wherein each of the first beams extends to be in direct contact with opposing sidewalls in the second direction,
wherein each battery cell stack contacts at least one first beam or one partition wall, and
wherein each partition wall is a solid, uninterrupted wall.
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