Battery Cell Having Structure for Preventing Side Wall Rupture of Can

The present disclosure provides a battery cell including a can including a side wall extended in an axial direction, and an open end portion at an end portion of the side wall in the axial direction; a cap that covers the open end portion; an electrode assembly housed in the can; and a current collector plate electrically connecting the electrode assembly and the can, wherein an edge of the cap is joined to the end portion of the side wall in the axial direction, the cap includes a loop-shaped fracture inducement portion that is concentric with the edge of the cap, the current collector plate includes a body portion connected to an electrode tab of the electrode assembly; a loop-shaped can connection portion disposed on a more centrifugal side than the body portion and joined to at least one of the side wall or the cap; and a bridge having a centripetal side connected to the body portion and a centrifugal side connected to the can connection portion and extended in a radial direction, and the fracture inducement portion of the cap is disposed at an outer position than a centripetal side edge of the can connection portion in the radial direction.