Cylindrical Battery, And Battery Pack And Vehicle Including Same

Abstract: A cylindrical battery according to the present invention comprises an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound. The first electrode and the second electrode include a first non-coated portion and a second non-coated portion. At least one of the first non-coated portion and the second non-coated portion is itself defined as an electrode tab, and includes a core side non-coated portion, an outer circumferential side non-coated portion, and an intermediate non-coated portion interposed therebetween. At least one of the core side non-coated portion and the outer circumferential side non-coated portion has a height smaller than that of the intermediate non-coated portion in the winding axis direction. The cylindrical battery comprises: a battery housing which receives the electrode assembly through an opening and is electrically connected to the second non-coated portion; an external terminal which is electrically connected to the first non-coated portion and extends through a closed portion of the battery housing to be exposed to the outside; and a cap plate for covering the opening of the battery housing.

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