公开(公告)号：US20180083256A1

公开(公告)日：2018-03-22

申请号：US15383446

申请日：2016-12-19

Applicant: Apple Inc.

Inventor： Angelo V. Marasco ,  Haran Balaram

IPC: H01M2/30 ,  H01M2/08

CPC classification number: H01M2/30 ,  H01M2/065

Abstract: Electrical feedthroughs are presented for redistributing thermally-induced stresses that result from welding. In some embodiments, an electrical feedthrough includes a tubular conduit having a flange at one end. The flange includes a first surface disposed opposite a second surface. The first surface includes at least one of a protrusion and a notch. The electrical feedthrough also includes an electrically-conductive terminal disposed through the tubular conduit. An electrically-insulating material is disposed between the tubular conduit and the electrically-conductive terminal and forms a seal therebetween. The protrusion and the notch are configured individually or as a combination to reduce thermally-induced stresses within the electrically-insulating material that result from welding the flange. Methods for welding such electrical feedthroughs to a wall, such as a wall of a battery housing, are also presented.