| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an organic/inorganic composite porous separator (film) and a method for producing the same, and to provide an electrochemical device comprising the organic/inorganic composite porous separator (film). <P>SOLUTION: The porous polymer film comprises (a) a polyolefin-based film substrate; and (b) an active layer formed by coating at least one region selected from a group composed of the surface of the substrate and a part of pores present in the substrate with a mixture of inorganic particles and a predetermined binder polymer, wherein the inorganic particles in the active layer are interconnected among themselves by the binder polymer, and interstitial volumes among the inorganic particles form a pore structure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
