Secondary battery assembly and secondary battery assembly module having same
AssigneeSK On Co., Ltd.
InventorsDong Jin Kim, Ik Sang Jo
Life of this patent
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Abstract
Proposed is a secondary battery assembly. A secondary battery assembly according to an embodiment includes a secondary battery having, at an end or each end thereof, an electrode tab including a tab sealing part, and a side sealing part bent on a side surface thereof to a predetermined length, and a venting delay device including a protrusion formed to be spaced apart and face the bent side sealing part. According to the embodiment, it is possible to effectively prevent and delay breakage of a fusion portion of a sealing part of a secondary battery from occurring due to pressure caused by discharge of gas generated inside the secondary battery.
Claims7
A secondary battery assembly comprising:
- a secondary battery having, at an end or each end thereof, an electrode tab including a tab sealing part, and a side sealing part bent on a side surface thereof to a predetermined length;
- and
- a venting delay device including a protrusion formed to be spaced apart from and face the side sealing part bent on the side surface thereof,
- wherein
- the side sealing part is configured to expand by an internal pressure of the secondary battery, and
- a bent portion of the side sealing part is configured to unfold and contact the protrusion.
Dependencies are inferred from the claim text.