CPC H01M 10/0413 (2013.01) [B23K 26/244 (2015.10); H01M 10/486 (2013.01); H01M 50/209 (2021.01); H01M 50/50 (2021.01); H01M 50/503 (2021.01); H01M 50/509 (2021.01); H01M 50/512 (2021.01); H01M 50/516 (2021.01); H01M 50/528 (2021.01); H01M 50/548 (2021.01); H01M 50/553 (2021.01); B23K 2103/10 (2018.08); B23K 2103/12 (2018.08); H01M 2200/10 (2013.01)] | 18 Claims |
1. A battery module comprising:
a plurality of battery cells each including at least one electrode tab; and
a bus bar connected to the electrode tabs to electrically connect the plurality of battery cells to each other, the bus bar having a plate in which a plurality of holes are formed;
wherein each of the electrode tabs is inserted into a corresponding one of the plurality of holes and bonded as wobble shape to the corresponding one of the plurality of holes,
wherein the plurality of battery cells are stacked in a front-rear direction,
wherein each of the electrode tabs includes a bending portion,
wherein a front surface of the bending portion faces forward,
wherein a rear surface of the bending portion faces rearward, and
wherein one of the front surface and the rear surface is convex and another of the front surface and the rear surface is concave.
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