CAP ASSEMBLY COMPRISING GUIDE MEMBER FOR PREVENTING ESCAPE OF SAFETY VENT

• Main Authors: JI, Sang Gu, LEE, Myung An, KIM, Yong Han, KIM, Da Na, PARK, Geun Young, KIM, Sang Uck, BOK, Cheon Hee
• Format: Patent
• Language: English; Hungarian
• Published: 28.02.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

Disclosed herein is a cap assembly loaded on an open upper end part of a cylindrical can of a battery, the battery being configured to have a structure in which an electrode assembly is mounted in the cylindrical can, the cap assembly including a safety vent configured to rupture in order to exhaust gas when the interior pressure of the battery increases, an upward-protrusion type cap plate loaded on the upper part of the safety vent, the cap plate being provided with a through-opening, through which gas is exhausted, a current interrupt member attached to the lower end of the safety vent for interrupting electric current when the interior pressure of the battery increases, and a guide member attached to the inside of the cap plate for preventing escape of a ruptured portion of the safety vent, which is ruptured as a result of an increase in the interior pressure of the battery.