Patent ID: 7935439

Claim:
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: the first and second connection leads electrically connect any one of the protection circuit module and the positive temperature coefficient element to any one of the first and second electrode tabs, respectively, and the first and second connection leads are L-shaped and substantially planar having a first planar surface and a second planar surface opposite to the first planar surface, wherein the first planar surface contacts the protection circuit module or the positive temperature coefficient element and the second planar surface contacts the first or second electrode tab.