Polypore International, LP

 Polypore, an Asahi Kasei Group Company, has a broad portfolio of microporous membrane products with extensive capabilities utilizing proven proprietary processes and product technologies. The increasing demand for mobile and portable energy around the world continues to be a driving force in our growth.

We are a leading worldwide developer, manufacturer and marketer of highly specialized polymer-based membranes used in separation processes. Our energy storage segment produces different types of membranes that function as separators in lead-acid batteries used in transportation and industrial applications and lithium batteries used in electric drive vehicles and electronics applications.