Patent ID: 8313852
Filing Date: 2012-11-20
Classification: H01M,Y02E,Y02P

Abstract:
1. A lithium rechargeable battery, comprising: an electrode assembly that includes first and second electrodes a separator interposed between them; a cap assembly comprising a cap plate and a terminal plate; an insulation case positioned on top of the electrode assembly and between the electrode assembly and the cap assembly; and a can containing the electrode assembly and the insulation case, wherein the cap plate is coupled to the top of the can, wherein a safety vent is formed on the cap plate and/or the can, wherein the insulation case has at least one of an electrolyte injection hole and an electrode tab drawing hole, wherein the insulation case has at least one other hole, and wherein the other hole is a gas evacuation hole and is positioned below the safety vent, wherein the insulation case has at least one supporter formed on its side and at least one portion on its side where the supporter is not formed.