Title:
SECONDARY BATTERY WITH EMBOSSED SAFETY VENT
Document Type and Number:
WIPO Patent Application WO/2018/056562
Kind Code:
A1
Abstract:
Various embodiments of the present invention relate to a secondary battery. The technical problem to be solved is to provide a secondary battery having an embossed safety vent, which is not damaged by an external force generated during a manufacturing process, can clearly define a rupture area or shape, and makes process management for rupture area or shape easy. To this end, various embodiments of the present invention disclose a secondary battery comprising: a case; a cap plate which is installed in the case and has a vent hole; and a safety vent which is coupled to the vent hole of the cap plate and ruptures when the internal pressure of the case is greater than a reference pressure, wherein the safety vent comprises an embossed portion; and a notch portion formed in the embossed portion.
Inventors:
LEE HYUN SOO (KR)
Application Number:
PCT/KR2017/007704
Publication Date:
March 29, 2018
Filing Date:
July 18, 2017
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M10/0525; H01M50/103; H01M50/147
Foreign References:
| JP2000149953A | 2000-05-30 | |||
| KR20100062886A | 2010-06-10 | |||
| KR20110017820A | 2011-02-22 | |||
| KR20110097573A | 2011-08-31 | |||
| KR20080082266A | 2008-09-11 |
Attorney, Agent or Firm:
SUH, Man Kyu et al. (KR)
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