Patent ID: 8216708
Filing Date: 2012-07-10
Classification: H01M,Y02E,Y02P

Abstract:
1. A secondary battery constructed in a structure in which a safety connection member, having a horizontal connection terminal (a) connected to one end of a safety element and a vertical connection terminal (b) connected to the other end of the safety element, is connected to at least one electrode terminal of a battery cell having an electrode assembly of a cathode/separator/anode structure disposed in a battery case in a sealed state, whereby an external input and output terminal of the battery cell is variably formed due to the safety connection member, wherein the horizontal connection terminal (a) of the safety connection member is directly connected to a cathode terminal or an anode terminal of the battery cell such that the horizontal connection terminal (a) is parallel with the lateral direction of the battery cell, whereby the vertical connection terminal (b) of safety connection member electrically and directly connected to an external circuit protrudes in the longitudinal direction of the battery cell; wherein the battery cell is a battery cell having a pouch-shaped battery case; and wherein (i) the horizontal connection terminal (a) of the safety connection member is connected to an electrode lead (A) of the battery cell such that the vertical connection terminal (b) of the safety connection member is directed toward the lower part of the battery cell, (ii) the electrode lead (A) of the battery cell is bent downward such that the safety connection member is rotated 180 degrees, (iii) sealing parts of the pouch-shaped battery case are bent perpendicularly to the main surface of the battery case such that the sealing parts are brought into tight contact with the outer surface of an electrode assembly receiving part of the battery cell, and (iv) the vertical connection terminal (b) of the safety connection member is bent upward vertically to form the external input and output terminal.