Patent ID: 7785741
Filing Date: 2010-08-31
Classification: H01M,Y02E,Y02P

Abstract:
1. An implantable medical device, comprising: a housing; an electronics module for performing a device function disposed within the housing; and an electrochemical cell disposed within the housing and electrically coupled to the electronics module, wherein the electrochemical cell includes a first electrode structure formed from a sheet of electrode material folded along a plurality of spaced apart intervals to form a U-fold structure having a plurality of small-radius folds forming a plurality of double-layer sections and a plurality of large-radius folds for spacing apart the first single-layer section, the plurality of double-layer sections, and the second single-layer section, and wherein a plurality of perforations includes a first set of perforations disposed along the small-radius folds and a second set of perforations disposed along the large-radius folds, the second set of perforations having a greater number of perforations than the first set of perforations and a second electrode structure operatively positioned between the plurality of spaced-apart double-layer sections of the first electrode structure.