Patent ID: 7935439
Filing Date: 2011-05-03
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A pouch type lithium secondary battery comprising: an electrode assembly including a first electrode plate to which a first electrode tab is attached, a second electrode plate to which a second electrode tab is attached, and a separator located between the first electrode plate and the second electrode plate; a pouch housing the electrode assembly; a protection circuit module to control charging and discharging of the electrode assembly; a junction pad mounted on the protection circuit module; a positive temperature coefficient element which has one end attached to the junction pad, and the other end electrically connected to one of the first electrode tab and the second electrode tab, and configured to interrupt electric current when a temperature of the battery reaches a threshold temperature; and first and second connection leads extending from the protection circuit module to an exterior of the pouch, wherein: