| CPC H01M 10/6567 (2015.04) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6556 (2015.04); H01M 50/204 (2021.01); H01M 50/209 (2021.01); H01M 50/24 (2021.01); H01M 50/242 (2021.01); H01M 50/258 (2021.01); H01M 50/262 (2021.01); H01M 50/264 (2021.01); H01M 50/296 (2021.01); H01M 50/505 (2021.01); H01M 50/507 (2021.01); H01M 50/289 (2021.01); H01M 2220/20 (2013.01)] | 16 Claims |
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1. A battery module comprising:
a plurality of cell stacks, each of the plurality of cell stacks comprising a plurality of unit cells aligned with each other in a first direction, each of the plurality of unit cells comprising terminal parts; a module housing comprising a plurality of receiving parts aligned in the first direction and a second direction crossing the first direction, wherein each of the plurality of cell stacks is configured to be inserted into a corresponding one of the plurality of receiving parts,
wherein the plurality of receiving parts forms a first column and a second column arranged with each other in the first direction, each of the first column and the second column extending in the second direction, and wherein cell stacks that are adjacent to each other in the second direction from among the plurality of cell stacks are electrically connected to each other;
a stack bus bar electrically connecting at least some of the plurality of unit cells to each other;
a connection bus bar electrically connecting two cell stacks that are adjacent to each other in the second direction from among the plurality of cell stacks; and
a terminal bus bar extending from a corresponding one of the plurality of cell stacks,
wherein the terminal bus bar is connected to a unit cell of the plurality of unit cells at one end of the corresponding one of the plurality of cell stacks, and the connection bus bar is connected to a unit cell of the plurality of unit cells at an other end of the corresponding one of the plurality of cell stacks,
wherein the one end of the corresponding one of the plurality of cell stacks faces a region between the first column and the second column, and an end wall at the one end of a cell stack in the first column from among the plurality of cell stacks faces an other end wall at the one end of a cell stack in the second column from among the plurality of cell stacks,
wherein the terminal bus bar extends to the region crossing the end wall at the one end of the corresponding one of the plurality of cell stacks, and
wherein the terminal bus bars in the first column and the terminal bus bars in the second column are alternatively arranged along the second direction.
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