Disclosed is a laminated porous film which has both gas permeability and heat resistance and can exhibit excellent smoothness and excellent pin extraction properties when used as a separator for a battery. The laminated porous film is characterized by havi...

Disclosed is a separator for a battery, which comprises a porous film mainly composed of a polyolefin film, has heat resistance, and can improve battery properties. Specifically disclosed is a separator for a battery, which is characterized by having a lay...

Provided is a laminated porous film having excellent shutdown characteristics and breakdown characteristics, good tearing strength and dimensional stability, and B activity. The laminated porous film comprises layer A, the main component of which is a poly...

A porous laminate comprising at least three layers including: a pair of both outer layers, made of a resin composition containing a filler and a thermoplastic resin, which is disposed on outermost surfaces of said porous laminate; and an interlayer, made o...

Disclosed is a laminated porous film for a separator of a battery that, while having excellent air permeation performance which contributes to electric performance, has a shutdown property which is one of properties important from the viewpoint of ensuring...

A fuel cell separator comprises a resin conductive layer as a mixture of a resin and a conductive filler at least on one side of a metal substrate, wherein the resin conductive layer comprises (a) a first resin layer having a volume resistance of 1.0 ©·c...