Patent ID: 6746796
Filing Date: 2004-06-08
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
An electrode-rolled battery in which an anode and a cathode are rolled in a manner that a separator is put between said anode and said cathode and in which a plurality of collecting tabs is respectively connected with a plurality of anode active material unformed parts of said anode and a plurality of cathode active material unformed parts of said cathode; andwherein when a length of an outermost anode active material unformed part is set as â€œLâ€ ; and when a distance from said outermost anode active material unformed part to a center of a rolled body made up of said anode, said cathode and said separator, is set as â€œRâ€ , a following expression is set: L&gE;2&pgr;R.