Cap assembly and cylindrical secondary battery therewith

캡 조립체 및, 그것을 구비한 원통형 이차전지

Abstract

PURPOSE: A cap assembly and a cylindrical secondary battery employing the cap assembly are provided, to prevent the component comprising a safety valve from being separated from the gasket even before assembling is terminated. CONSTITUTION: The cap assembly comprises a gasket(21) which is provided with a cylindrical inner space and the circumference(21a) projected along the internal surface; and a safety valve which is received inside the gasket and is placed at the lower part of the projected circumference to prevent the safety valve from being separated from the gasket even before assembling is terminated, and a cap(23) placed above the safety valve. The cylindrical secondary battery comprises an electrode assembly comprising an anode plate, a cathode plate and a separator separating the two plates electrically; a can receiving the electrode assembly; a gasket which is assembled at the upper part of the can and is provided with a cylindrical inner space and the circumference projected along the internal surface; and a safety valve which is received inside the gasket and is placed at the lower part of the projected circumference to prevent the safety valve from being separated from the gasket even before assembling is terminated, and a cap placed above the safety valve.
본 발명에 따르면, 원통형 내측 공간을 구비하며, 내표면을 따라서 돌출된 테두리를 구비한 개스킷; 상기 개스킷내의 내측 공간에 수용되는 것으로서, 상기 돌출 테두리의 하부에 배치됨으로써 조립이 완료되기 이전에도 개스킷으로부터의 이탈이 방지될 수 있는 안전변 및, 그 위에 배치되는 캡;을 구비하는 캡 조립체 및, 그것을 구비한 원통형 2 차 전지가 제공된다.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle