Battery Cell And Battery Cell Manufacturing Apparatus For Manufacturing Same

Abstract: A battery cell according to one embodiment of the present invention comprises: a battery case including a reception part in which an electrode assembly is mounted, and a sealing part having a structure, the outer circumference of which has been sealed; an electrode lead which is electrically connected to an electrode tab included in the electrode assembly and protrudes outward of the battery case through the sealing part; and a lead film positioned at a portion corresponding to the sealing part of at least one of an upper part and a lower part of the electrode lead, wherein the lead film includes a first step part protruding in a direction opposite to a direction toward the electrode lead, the sealing part includes a second step part surrounding the outer surface of the first step part, and a gas discharge inducing part is inserted into the first step part.

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