Patent ID: 8367242
Filing Date: 2013-02-05
Classification: H01M,Y02E

Abstract:
1. A rechargeable battery, comprising: an electrode assembly, the electrode assembly including a separator interposed between a first electrode and a second electrode; a case, the case accommodating the electrode assembly; a cap plate, the cap plate sealing an opening at one end of the case; and electrode terminals, the electrode terminals being electrically connected to the electrode assembly, wherein: the electrode terminals include a first electrode terminal connected to the first electrode and a second electrode terminal connected to the second electrode, the first electrode terminal extends through a terminal hole on the cap plate with a gasket interposed between the first electrode terminal and the cap plate, the second electrode terminal is integrally formed with the cap plate to form a monolithic unit, the second electrode terminal includes a concave groove, the concave groove having a concavity facing toward an inside of the case and being formed by shaping the cap plate, and the second electrode terminal overlies the concave groove.