A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the case; and an insulating member between the electrode assembly and the cap plate, and a relationship of M/E=R1 is satisfied, where M is...

Provided is a secondary battery that can improve structural efficiency. The secondary battery includes: a power generating element; and an exterior part housing the power generating element thereinside, wherein the exterior part has: a cylindrical part hav...

An end cover assembly includes a top cover unit, a pole, an upper plastic member, and a fixing member. The pole penetrates the top cover unit and includes a base portion and a connecting portion protruding from an end surface of the base portion. A part of...

An electrical accumulator has a terminal pole provided with an external thread and connected to a flat cable lug of a cable connection. The terminal pole (3) is arranged in a circular recess in the cover (1) such that the terminal pole is surrounded on all...