Rechargeable battery

A rechargeable battery includes: an electrode assembly including a positive electrode and a negative electrode so as to improve safety; a case accommodating the electrode assembly therein; a first terminal and a second terminal electrically connected to the electrode assembly; a short-circuit member connected to the first terminal, and configured to be deformed to electrically connect the positive electrode and the negative electrode; a support plate installed under a cap plate; and a lower insulating member installed between the support plate and the cap plate, wherein each of the terminals includes fixing portions riveted to a support plate; and a short-circuit tab making electrical contact with the short-circuit member.