Patent ID: 8974952
Filing Date: 2015-03-10
Classification: H01M,Y02E

Abstract:
1. A rechargeable battery comprising: a central electrode portion comprising a positive electrode, a negative electrode and a separator; a first electrode portion extending from a first end of the central electrode portion; a second electrode portion extending from a second end of the central electrode portion opposite the first end; a central case having an inner surface and an outer surface enclosing the central electrode portion respectively having a first and a second opening having first and second dimensions; a first electrode case having an inner and outer surface and enclosing the first electrode portion, wherein the first electrode case is coupled to the central case the first electrode case being dimensioned to have dimensions corresponding to the first dimensions of the first opening so as to be positioned within the first opening in the central case such that an overlapping part of the first electrode case encloses a part of the central electrode portion at the first end, and the central case encloses the overlapping part of the first electrode case such that the inner surface of the central case is positioned adjacent the outer surface of the first electrode case; and a second electrode case having an inner and outer surface and enclosing the second electrode portion, wherein the second electrode case is coupled to the central case the second electrode case being dimensioned so as to have dimensions corresponding to the second dimension of the second opening so as to be positioned within the second opening in the central case such that an overlapping part of the second electrode case encloses a part of the central electrode portion at the second end, and the central case encloses the overlapping part of the second electrode case such that the inner surface of the central case is positioned adjacent the outer surface of the second electrode case.