| CPC H01M 50/503 (2021.01) [H01M 50/505 (2021.01)] | 10 Claims |

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1. A battery module comprising:
a battery cell stack in which a plurality of battery cells are stacked; and
a busbar frame located on a front surface or a rear surface of the battery cell stack,
wherein the busbar frame comprises a support part surrounding at least a portion of a bottom surface of the battery cell stack,
wherein the support part comprises an extension region extending a distance from the busbar frame in a lengthwise direction of a battery cell of the plurality of battery cells, and a protrusion region on the extension region, and
wherein the distance the extension part extends is substantially less than a length of the battery cell stack in the lengthwise direction, and
wherein a thickness of the extension region is smaller than a thickness of a location of the support part at which the protrusion region is disposed.
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