In one exemplary embodiment, the lever portions may include a plurality of lever portions respectively connected to opposite sides of the body.

In one exemplary embodiment, the receiving recess may have a shape that is recessed inwards from an outer edge of each of the plurality of separators.

In one exemplary embodiment, the receiving recess may include a first side and a second side, facing each other in the third direction, and a third side arranged between the first side and the second side, the third side facing the cell-monitoring connector, and the plurality of separators, each including the receiving recess having the first side, the second side, and the third side, may be disposed to overlap each other in the first direction.

In one exemplary embodiment, the plurality of gaskets may include a first gasket and a second gasket, wherein the first and second gaskets are disposed to face each other in the third direction with respect to the receiving recess.

In one exemplary embodiment, each of the first and second gaskets may have a hook shape, and the hook shape of the first gasket and the hook shape of the second gasket may be symmetrical to each other in the third direction with respect to the receiving recess.

In one exemplary embodiment, each of the first gasket and the second gasket may include a first end facing the receiving recess in the third direction and a second end facing an outer edge of a respective separator in the second direction. The first end may be spaced apart from a respective one of the first side and the second side of the receiving recess, and the second end of each of the first gasket and the second gasket may be spaced apart from the outer edge.