Patent ID: 7332246
Filing Date: 2008-02-19
Classification: H01M,Y02E,Y02P

Abstract:
1. A galvanic element comprising: at least one positive electrode in strip form; at least one negative electrode in strip form; at least one separator in strip form interposed between the positive and negative electrodes such that the separator and the electrodes are spirally rolled; a housing cup surrounding at least a portion of the electrodes; at least one electrically conducting cover being sealed with respect to the housing cup by an electrically insulating seal, one conducting cover and the housing cup forming poles of the galvanic element; and at least one current collector comprising a disk-shaped portion and a plurality of contact tabs integrally formed with the disk-shaped portion and extending from the disk-shaped portion, the disk-shaped portion connected mechanically and electrically conductively to an edge portion of at least one of the electrodes, the plurality of contact tabs connected mechanically and electrically conductively to a pole to conductively bridge the distance between the pole of the galvanic element and the edge portion of the electrodes; wherein the contact tabs are radially distributed at the outer circumference of the disk-shaped portion of the current collector.