Patent ID: 8084158

Claim:
A cylindrical electrochemical cell, comprising: a spirally wound assembly comprising an anode sheet and a cathode sheet separated by separator membranes, the cathode sheet comprising a first electroactive layer on a first current collector, and the anode sheet comprising a second electroactive layer on a second current collector, the spirally wound assembly having a cylindrical side wall and opposing end faces, wherein at least one of the first current collector and the second current collector is in electrical communication with a plurality of conducting tabs that extend from at least one of the anode sheet and the cathode sheet, the plurality of conducting tabs extending from an end face of the spirally wound assembly; and wherein centers of the plurality of conducting tabs are spaced from each other in an annular direction around a center of the end face of the spirally wound assembly such that each of the plurality of conducting tabs are positioned within a 90 degree arc window.