Patent ID: 9508969
Filing Date: 2016-11-29
CPC Classification: H01M,Y02E,Y02P,Y10T

Claim Text:
1. A secondary battery, comprising: an electrode assembly having an electrode tab; an electrode lead attached to the electrode tab and having at least one lead hole defining an internal space; a pouch case for accommodating the electrode assembly so that the electrode lead is drawn out; and a sealing tape interposed between the electrode lead and the inner surface of the pouch case and having at least one venting pattern portion formed at a region corresponding to the lead hole, wherein the venting pattern portion is a notch, and wherein the notch overlaps with the lead hole, with a boundary of the notch being coterminous with at least a portion of a boundary of the lead hole, such that the boundary of the notch extends along the same path as the portion of the boundary of the lead hole; wherein the internal space of the lead hole is empty.