Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/151646
Kind Code:
A1
Abstract:
The present invention relates to a secondary battery enabling enhanced safety in case of an external short circuit. According to one example, the secondary battery comprises: an electrode assembly; a case for accommodating the electrode assembly; and a cap assembly coupled to the top of the case. The cap assembly comprises: a cap-up; a safety vent provided below the cap-up; a cap-down provided below the safety vent and having a through hole and a gas discharge hole; an insulator provided between the safety vent and the cap-down; a sub-plate provided below the cap-down; and a solder member for electrically connecting the safety vent and the sub-plate. The safety vent and the sub-plate are electrically connected by means of soldering.
Inventors:
CHUN BYOUNG MIN (KR)
Application Number:
PCT/KR2018/016392
Publication Date:
August 08, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01H37/76; H01M50/574
Foreign References:
| KR101772266B1 | 2017-08-30 | |||
| KR101249919B1 | 2013-04-03 | |||
| JP2009170398A | 2009-07-30 | |||
| KR20170076203A | 2017-07-04 | |||
| KR20120103394A | 2012-09-19 |
Other References:
See also references of EP 3748735A4
Attorney, Agent or Firm:
SUNGAM SUH INTERNATIONAL PATENT & LAW FIRM (KR)
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