Electrode Assembly, Method And Apparatus For Manufacturing Same, Cylindrical Battery Comprising Electrode Assembly, And Battery Pack And Vehicle Comprising Cylindrical Battery

Abstract: Disclosed are an electrode assembly and a method and apparatus for manufacturing same, a cylindrical battery comprising the electrode assembly, and a battery pack and a vehicle comprising the cylindrical battery. The electrode assembly is an electrode assembly in which two electrodes and a separator interposed therebetween are wound around one axis, and comprises, at the long side end of at least one of the electrodes, an uncoated portion exposed to the outside of the separator along an axial direction, and includes a winding turn portion of the uncoated portion at one end of the electrode assembly, wherein the winding turn portion includes a cut portion and a bent portion alternately arranged in the circumferential direction, and an axial height of the cut portion is smaller than an axial height of the bent portion, the bent portion includes a plurality of uncoated portion flags arranged along a radial direction of the electrode assembly, and the plurality of uncoated portion flags may be bent along the radial direction of the electrode assembly while overlapping in the axial direction.

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