Patent ID: 6465122
Filing Date: 2002-10-15
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A storage battery comprising:a battery case used as a first polarity terminal and having an opening; a port-sealing body used as a second polarity terminal, for sealing the opening; and an electrode body installed into the battery case and having a current collecting body connected to at least one of end portions of positive and negative electrodes; wherein the port-sealing body and the current collecting body are welded to a part of a peripheral side surface of a lead portion comprising a cylindrical body having a hollow portion, and wherein at least one of both edges of the cylindrical body is cut off obliquely, a peripheral side surface which is a shortest side by this cutting is welded to the port-sealing body or the current collecting body, and a peripheral side surface which is a longest side is welded to the current collecting body or the port-sealing body.