Cylindrical Battery, And Battery Pack And Vehicle Including Same

Abstract: A cylindrical battery according to the present invention comprises: an electrode assembly including a first uncoated portion and a second uncoated portion which are defined as electrode tabs; a battery housing accommodating the electrode assembly through an open portion and electrically connected to the second uncoated portion; an electrode terminal riveted through a through hole formed in a closed portion of the battery housing and electrically connected to the first uncoated portion; an insulating gasket interposed between the electrode terminal and the through hole; and a cap plate configured to cover an opening of the battery housing. The electrode terminal comprises: a body portion inserted into the through hole; an outer flange portion extending from the circumference of the body portion at one side, which is exposed through the outer surface of the closed portion, along the outer surface of the closed portion; an inner flange portion extending from the circumference of the body portion at the other side, which is exposed through the inner surface of the closed portion, toward the inner surface; and a flat portion provided inside the inner flange portion.

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