Asahi KaseiAsahi Kasei Corporation


Microporous Membrane



HIPORE™ is Asahi Kasei's polyolefin film, used in a wide range of high-technology fields, such as lithium ion battery separators.

The membranes look like plastic films, but are actually filled with microscopic pores. HIPORE™ is high-performance microporous membrane with wide range of thickness and highly uniform pores.

Micrograph of small pore diameter HIPORE™

Features of HIPORE™

1 Made of polyolefin, does not emit harmful gases when incinerated.
2 Available in a wide range of thicknesses with excellent uniformity of membrane thickness.
3 Available with uniform submicron pores.
4 High porosity, for outstanding liquid holding capacity.
5 High puncture strength, for improved safety and reliability.

Applications of HIPORE™


Sales & Marketing Department Battery Materials Division Asahi Kasei Corporation
Hibiya Mitsui Tower 1-1-2 Yurakucho, Chiyoda-ku, Tokyo 100-0006 Japan
TEL +81-3-6699-3233 FAX +81-3-6699-3370