Patent ID: 8968898
Filing Date: 2015-03-03
Classification: H01M,Y02E,Y02P

Abstract:
1. A cap assembly disposed at an open upper end of a cylindrical container of a battery in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, wherein an electrode lead of the jelly roll is electrically connected to the lower end of a safety vent having notches, which are ruptured to discharge high pressure gas when high pressure is generated in the battery, and the electrode lead is bent outward from the front end of a region of the electrode lead to which a thermal fuse to interrupt current at a predetermined temperature is coupled so that the electrode lead is directed outward from the center of the jelly roll, and is then bent inward from the rear end of the region of the electrode lead to which the thermal fuse is coupled.