Patent ID: 8557423

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, and 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, 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, wherein the cathode lead and an anode lead are arranged in opposite directions, and wherein at least one side of the cathode is not provided with the cathode uncoated part.