Patent ID: 8734976

Claim:
A battery comprising: a cathode having a cathode active-material coating layer provided on at least one surface of a cathode collector; and an anode having an anode active-material coating layer provided on at least one surface of an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween, wherein the cathode active-material coating layer applied to the at least one surface of the cathode collector is longitudinally deviated from a cathode active-material coating layer applied to the other surface of the cathode collector such that application beginning and ending portions of both the cathode active-material coating layers are not consistent with each other, only at least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead, and an additional cathode active-material coating layer is provided on at least one surface of a distal end of the cathode uncoated-part, and wherein an insulator tape is attached to a boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer.