| abstract |
The present invention relates to a secondary battery, and more particularly to a secondary battery including two electrode leads detachable from each other. According to an aspect of the present invention, there is provided a secondary battery comprising: an electrode assembly; and a battery case which is sealed with the electrode assembly from the outside, wherein one end of the secondary battery is connected to the electrode assembly A first electrode lead protruding from the electrode assembly and having the other end exposed to the outside of the battery case, and a first electrode lead detachably connected to the first electrode lead, And a second electrode lead extended and exposed to the outside. According to the embodiment of the present invention, in the abnormal state of the battery, the electrode leads are mutually separated by the rise of the internal voltage of the battery to block the current, so that the secondary battery can be provided with safety basically. |