Title:
CYLINDRICAL-BATTERY-CELL CAP ASSEMBLY HAVING CURRENT INTERRUPT DEVICE AND SAFETY VENT COUPLED TO EACH OTHER BY ELECTRICAL INSULATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/124532
Kind Code:
A3
Abstract:
The present invention relates to a cap assembly mounted on the upper end of a battery can for a cylindrical secondary battery, the cap assembly comprising: a top cap having an outwardly protruding positive electrode terminal at the top thereof; a safety vent electrically connected to the top cap via a safety element at the lower end of the top cap and discharging gas; and a current interrupt device connected to the safety vent at a part of the upper surface thereof and to an electrode lead of an electrode assembly at a part of the lower surface thereof, and interrupting a flow of an electric current upon generation of a high pressure in a battery, wherein the safety vent and the current interrupt device are mutually coupled by an electrical insulating material at the contact interface therebetween.
Inventors:
SHIN HANG-SOO (KR)
KIM DO-GYUN (KR)
LEE BYOUNG-GU (KR)
LEE BYOUNG-KOOK (KR)
JUNG SANG-SOK (KR)
KIM DO-GYUN (KR)
LEE BYOUNG-GU (KR)
LEE BYOUNG-KOOK (KR)
JUNG SANG-SOK (KR)
Application Number:
PCT/KR2017/014337
Publication Date:
August 23, 2018
Filing Date:
December 07, 2017
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0587; H01M50/147; H01M50/574
Foreign References:
| KR101514827B1 | 2015-04-23 | |||
| KR20160034794A | 2016-03-30 | |||
| KR20130034284A | 2013-04-05 | |||
| KR101313325B1 | 2013-09-27 | |||
| KR101073891B1 | 2011-10-17 |
Attorney, Agent or Firm:
JANG, Nak Yong et al. (KR)
Download PDF: