Cylindrical Battery And Current Collector Applied Thereto, And Battery Pack And Vehicle Including Such Cylindrical Battery

Abstract: The present invention provides a current collector which is applied to a cylindrical battery and electrically connects an electrode assembly and a battery housing. The current collector may comprise: a loop-shaped part for surrounding the circumference of the central axis of an electrode assembly so as to enable defining an opening area for exposing an electrode tab comprising a non-coated portion on one end portion of the electrode assembly; a tab coupling part extending toward the opening area from the inner side of the loop-shaped part adjacent to the opening area, and coupling to the electrode tab which is exposed through the opening area; and a housing coupling part coupled to a battery housing by extending toward the inner circumferential surface of the battery housing from the outer side of the loop-shaped part.

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