Patent ID: 7433174

Claim:
A method of making an electrode termination contact interface to a terminal cap, comprising the steps of: (a.) forming a first electrode foil having a plurality of active carbon deposits disposed upon predetermined portions of the first electrode foil, the electrode foil further having a plurality of current collecting tab portions disposed thereon; (b.) defining a plurality of fold zones thereupon the first electrode foil, wherein the fold zones are bounded by a plurality of fold lines; (c.) folding the first electrode foil symmetrically about alternating fold lines; (d.) defining a plurality of fold zone outer radius folds, wherein the plurality of fold zone outer radius folds all lie at a fixed position relative to a winding center axis; (e.) interposing at least one separator sheet between the plurality of fold zones, wherein the at least one separator sheet electrically isolate the plurality of fold zones; (f.) defining a plurality of fold zone inner radius folds, wherein the plurality of fold zone inner radius folds are linearly spaced toward an annular core, and; (g.) collecting the plurality of current collecting tab portions for each of the plurality of fold zones into a first plurality of gatherings.