Secondary battery

Abstract

Provided is a secondary battery including: an electrode assembly; an outer case accommodating the electrode assembly; and an electrode terminal disposed on the outer case, the electrode terminal being electrically connected to the electrode assembly via a conductive member. In such a secondary battery, the electrode terminal and the outer case are adhered to each other by an insulating seal member interposed between the electrode terminal and the outer case and provided around an opening of the outer case through which the conductive member passes, and a plan view outline of the electrode terminal on a surface of the electrode terminal in contact with the insulating seal member includes both a linear portion and a curved portion, a plan view outline of the outer case on a surface of the outer case in contact with the insulating seal member includes a curve, and the curved portion of the electrode terminal and a part of the curve of the outer case face each other.

Dependencies are inferred from the claim text.