BATTERY PACK, ELECTRIC WHEELCHAIR, AND VEHICLE

A battery pack according to an embodiment of the present disclosure includes: a plurality of battery cells, each configured to discharge an internal material to the outside by the internal pressure when the internal pressure increases over a predetermined pressure; a cell frame configured to accommodate the plurality of battery cells so that the internal material is discharged in at least one direction; one or more guide covers configured to cover at least one side of the plurality of battery cells, at least a portion of which is spaced apart from the cell frame by a predetermined distance to form a moving passage through which the internal material moves; and a pack housing having an accommodation space for accommodating the cell frame therein and a discharge portion configured such that a portion facing the distal end of the moving passage is perforated by the internal material.