A rechargeable battery and a method of forming the rechargeable battery. An electrode assembly includes a first electrode and a second electrode, and a separator disposed between the first electrode and the second electrode to prevent a short circuit between the first electrode and the second electrode. A first electrode tap is formed on an end portion of the first electrode and a second electrode tap is formed on an end portion of a second electrode, each end portion being absent active materials. A can is adapted to receive the electrode assembly and have the electrode assembly welded to an inner side of the can. A cap assembly surrounded by a gasket insulates the cap assembly and seals an opening of the can.