A secondary battery including a first electrode assembly, the first electrode assembly including a first positive electrode uncoated portion and a first negative electrode uncoated portion; a second electrode assembly horizontally parallel with the first electrode assembly, the second electrode assembly including a second positive electrode uncoated portion and a second negative electrode uncoated portion; a first collector plate that is electrically connected to the first positive electrode uncoated portion; a second collector plate that is electrically connected to the second positive electrode uncoated portion; a third collector plate that is electrically connected to the first negative electrode uncoated portion and to the second negative electrode uncoated portion; a case accommodating the first electrode assembly, the second electrode assembly, the first collector plate, the second collector plate, and the third collector plate; and a cap plate sealing the case, wherein the third collector plate includes a fuse hole therein.