Patent ID: 7968227
Filing Date: 2011-06-28
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A can-type rechargeable battery having a bare cell, comprising: an electrode assembly having two electrodes and a separator interposed between the two electrodes; a can accommodating the electrode assembly and an electrolyte, the can comprising an opening at a first end of the can configured to receive the electrode assembly through the opening and a bottom surface integrally formed at a second end of the can opposite the first end so as to entirely close the second end of the can; and a cap assembly arranged at the first end of the can and closing the opening of the can, wherein a protrusion integrally formed as part of the can is disposed at a connection portion on an outside of the bottom surface of the can, wherein a lead plate has a hole that is engaged with the protrusion, wherein the can is arranged between the cap assembly and the protrusion, and wherein an inside of the bottom surface of the can is a continuous planar surface.