FLUORINE BASED CATION EXCHANGE MEMBRANE FOR ELECTROLYSIS, AND ITS PRODUCTION METHOD

PROBLEM TO BE SOLVED: To provide a fluorine-based cation exchange membrane used for the electrolysis of an alkali chloride aqueous solution, and capable of forming alkali hydroxide at high purity while maintaining excellent electrochemical properties and mechanical strength over a long period. SOLUT...

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Hauptverfasser:	HIRANO TOSHINORI, KASHIWADA AKIO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fluorine-based cation exchange membrane used for the electrolysis of an alkali chloride aqueous solution, and capable of forming alkali hydroxide at high purity while maintaining excellent electrochemical properties and mechanical strength over a long period. SOLUTION: The cation exchange membrane for electrolysis comprises of: a fluorine-containing polymer having ion exchange groups; and a porous base material, and has projecting parts each composed of a polymer having ion exchange groups on the sides of an anode. The projecting parts have height in a specified range, the specified number, the area fraction of each bottom face, and the area fraction of each vertex part. COPYRIGHT: (C)2007,JPO&INPIT