MANUFACTURING METHOD OF POROUS MEMBRANE

MANUFACTURING METHOD OF POROUS MEMBRANE

PROBLEM TO BE SOLVED: To provide the manufacturing method of a porous membrane having high safety in washing, quickening drying, and capable of keeping the porous membrane after washing in high porosity and fixed thickness, and to provide the manufacturing method of a separator for a battery. SOLUTI...

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Hauptverfasser: KANEDA MITSUHIRO, YAMAMOTO TAKAYUKI, MIZUTANI KAORI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator KANEDA MITSUHIRO
YAMAMOTO TAKAYUKI
MIZUTANI KAORI
description PROBLEM TO BE SOLVED: To provide the manufacturing method of a porous membrane having high safety in washing, quickening drying, and capable of keeping the porous membrane after washing in high porosity and fixed thickness, and to provide the manufacturing method of a separator for a battery. SOLUTION: In the manufacturing method of the porous membrane containing a process removing low molecular weight substances from the porous membrane containing the low molecular weight substances after the membrane is manufactured, the low molecular weight substances are dissolved and washed with a washing solvent, the remaining washing solvent is dissolved and substituted with liquified gas or supercritical gas, and then drying under reduced pressure is conducted. COPYRIGHT: (C)2006,JPO&NCIPI
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title MANUFACTURING METHOD OF POROUS MEMBRANE
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