Patent ID: 7157181

Claim:
An electrochemical element having a wound electrode set, comprising: a strip positive electrode; a strip negative electrode; a strip separator located between the positive and negative electrodes to form a wound up, spiral electrode winding; a cylindrical housing which holds the electrode winding; a sealed cell pole isolated from the housing; and a connecting element which conductively bridges a distance between an edge of at least one electrode strip and the cell pole, the connecting element comprising a plurality of individually formed spring elements composed of electrically conductive steel strip material connected to the cell pole by a weld; wherein each of the spring elements comprise an attachment section attached to the cell pole and a contact section which is bent away from the attachment section at an acute angle; wherein the contact section of at least one of the spring elements has a configuration that differs from that of a contact section of another of the spring elements, with a first two spring elements comprising edge cutouts in the contact section through which the attachment section of a third spring element is accessible.