A rechargeable battery including an electrode assembly, the electrode assembly including a non-coating portion having a front surface, a rear surface, and a side surface; a case accommodating the electrode assembly; a cap plate sealing the case; and a collector electrically connected to the non-coating portion of the electrode assembly, wherein the collector includes a front collector tab welded to the front surface of the non-coating portion and a rear collector tab welded to the rear surface of the non-coating portion, a collector plate electrically connected to the collector tabs, the collector plate being coupled with a bottom surface of the cap plate, and a protrusion protruding perpendicularly from one of the front collector tab or rear collector tab.