Patent ID: 8313851
Filing Date: 2012-11-20
Classification: H01M,Y02E,Y02P

Abstract:
1. A lithium rechargeable battery comprising: an electrode assembly including a first electrode and a second electrode wound together with a separator interposed between the first electrode and the second electrode; a can containing the electrode assembly; a cap plate having an electrolyte injection hole, the cap plate being coupled to an opening of the can; a plug sealing the electrolyte injection hole; and at least two ribs spaced from and equidistant from the electrolyte injection hole at at least two opposite sides of the electrolyte injection hole, wherein the at least two ribs are spaced from each other and from the plug and protrude from a cap plate surface distal from the electrode assembly and wherein the at least two ribs are integral with and made from the cap plate.