Battery Pack And Vehicle Comprising Same

Abstract: A battery pack according to an embodiment of the present invention comprises: battery cells; a bus bar assembly having a first side and a second side, wherein the second side of the bus bar assembly is provided on a first side of the battery cells, and the bus bar assembly is electrically connected to the battery cells; a cooling unit disposed at the second side of the bus bar assembly and disposed between the battery cells along the length direction of the battery pack; and a side structure unit configured to accommodate the cooling unit and the battery cells, wherein a positive electrode and a negative electrode of the battery cells are respectively electrically connected to a positive electrode connection portion and a negative electrode connection portion of a sub-bus bar of a single layer provided in the bus bar assembly.

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