Rechargeable battery

One aspect of the present invention has been made in an effort to provide a rechargeable battery having improved operation quality by preventing malfunction of a temperature protection element. A rechargeable battery according to an exemplary embodiment of the present invention includes a pouch installing an electrode assembly, first and second lead tabs connected to the electrode assembly and drawn out to one side of the pouch, a temperature protection element connected to the first tab, and a connection tab connected to the temperature protection element. The temperature protection element is attached to the pouch using a double-sided adhesive tape and covered by an insulation tape.