| CPC H01M 50/367 (2021.01) [H01M 50/249 (2021.01); H01M 50/271 (2021.01); H01M 50/383 (2021.01)] | 23 Claims |

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1. A battery pack comprising:
a pack housing having a first accommodation space, a second accommodation space spaced apart from the first accommodation space, a center space formed between the first accommodation space and the second accommodation space, and a first side space spaced apart from the center space and located adjacent to the first accommodation space, and a second side space spaced apart from the center space and located adjacent to the second accommodation space;
a first battery module group including a plurality of battery modules disposed within the first accommodation space;
a second battery module group including a plurality of battery modules disposed within the second accommodation space; and
a pack cover having a first center venting channel configured to guide a venting gas generated from at least two battery modules of the first battery module group to the center space, a first side venting channel configured to guide a venting gas generated from remaining battery modules of the first battery module group to the first side space, and a second center venting channel configured to guide a venting gas generated from at least two battery modules of the second battery module group to the center space, and a second side venting channel configured to guide a venting gas generated from remaining battery modules of the second battery module group to the second side space.
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