PE separator, located between two electrodes and has low electrical resistance ∙ nonconductive porous membrane, prevents a short by physical contact and transfers ion through pore inside of the separator between electrode.

Also, it tolerates sulfuric acid and pressure from electrodes during charge-discharge process which are very important for maintaining battery performance.

PE separators are applied to various lead-acid batteries such as automotive battery, industrial battery, heavy duty battery, and etc.