Pouch Film, Pouch Cell, Cell Stack, Manufacturing Method for Pouch Film, and Manufacturing Method for Pouch Cell

Abstract

A pouch cell may be capable of efficiently discharging gas from inside to outside of a pouch so as to delay or prevent the venting phenomenon of the pouch caused by internal gas generated during the charging or discharging process of the pouch cell. The pouch cell may include an electrode assembly, and a pouch in which the electrode assembly is disposed. The pouch may include a first layer and a second layer through which gas is permeable. The pouch may also include a barrier layer disposed between the first layer and the second layer, and the barrier layer may have a plurality of holes formed to allow gas to pass through.

Dependencies are inferred from the claim text.