Electrode Assembly, Battery, And Battery Pack And Vehicle Comprising Same

Abstract: An electrode assembly, a battery, and a battery pack and a vehicle comprising same are disclosed. The electrode assembly comprises a first electrode, a second electrode, and a separator interposed therebetween that are wound around a winding axis such that a core and an outer circumferential surface are defined, wherein the first electrode includes: a first active material part coated with an active material layer in the winding direction; and a first non-coated part which is not coated with the active material layer and which is exposed to the outside of the separator, the first non-coated part includes a plurality of segmental pieces that can be independently bent, the plurality of segmental pieces are defined as electrode tabs bent in the radius direction of the electrode assembly, and at least a partial region of the first non-coated part including the plurality of segmental pieces can include a cut-off portion extending in one direction parallel to the winding direction.

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