Zylindrische Sekundärbatterie

Details

Veröffentlichungs-Nr.

EP4723350

Anmeldetag

1. April 2024

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

Abstract

An embodiment of the present invention relates to a cylindrical secondary battery that may comprise: an electrode assembly; a cylindrical can in which the electrode assembly is accommodated; and a cap assembly which is coupled to the can, is electrically connected to the electrode assembly, is insulated from the can, and includes a cap-up exposed to the outside, a cap-down supporting the cap-up, a vent plate arranged between the cap-up and the cap-down to be spaced apart from the cap-down and having at least one notch formed therein, and an insulator made of an insulating material and disposed between the cap-up and the cap-down and the can, wherein the cap-up includes a plurality of piercing holes formed through a plate surface, a plurality of bridges arranged between the piercing holes, and a plurality of discharge holes formed through the plate surface and spaced apart from the piercing holes. According to an embodiment of the present invention, the discharge direction of internal gas within the secondary battery is not bent and the gas can be discharged in a straight direction, so that the internal gas can be quickly discharged.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea