| CPC H01M 50/383 (2021.01) [H01M 50/249 (2021.01); H01M 50/262 (2021.01); H01M 50/271 (2021.01); H01M 50/367 (2021.01)] | 17 Claims |
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1. A battery module, comprising:
a sub module including a plurality of battery cells;
a lower housing to receive the sub module therein and having an opening;
a first housing cover coupled to the lower housing, covering the opening of the lower housing, and having a gas inlet;
a second housing cover coupled to the first housing cover from above to form a gas receiving space therebetween, and having a gas outlet; and
a variable partition structure installed in the gas receiving space to partition the gas receiving space to define a gas exhaust path to increase a movement path of a flame entering together with gas occurred in the sub module and entering the gas receiving space through the gas inlet, the gas exhaust path having at least one turn spaced laterally from the gas inlet,
wherein the variable partition structure comprises two sections attached at a hinge, the two sections extending in the gas receiving space.
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