SECONDARY CELL INCLUDING NA-Y-TYPE ZEOLITE ADSORBENT

Provided is a secondary cell including a Y-type zeolite adsorbent. The secondary cell including a Y-type zeolite adsorbent of the present invention may remove gas such as carbon dioxide and hydrogen fluoride produced inside by adsorption to prevent a sealing part from being pushed, and improve stability such as maintaining secondary cell performance, increasing a cell life, and preventing ignition.