Method for preparing all-solid-state polymer electrolyte membrane and prepared electrolyte membrane

• Main Authors: ZHANG AILING, LIANG JIYAN, LI SANXI, WANG SONG
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention discloses a method for preparing an all-solid-state polymer electrolyte membrane and a prepared electrolyte membrane. The method comprises the following steps of: dissolving liquid crystal polymer E or F containing sulfoacid ions into N-methylpyrrolidone and acetonitrile to obtain a solution G; dissolving PEO (Poly Ethylene Oxide) into water and acetonitrile to obtain a solution H; dissolving PMMA (Polymethyl Methacrylate) and LiClO4 into an acetone solution to obtain a solution I; mixing G, H and I, evenly mixing, and pouring in a die; drying after volatilizing to form the membrane or manufacturing the membrane by a whirler; and obtaining a PEO/ PMMA composite solid-state polymer electrolyte membrane containing the liquid crystal polymer and LiClO4, wherein the thickness range of the membrane is 0.2-0.5mm, and the room-temperature ion electrical conductivity of the membrane is above 10-3S/cm. The electrolyte membrane obtained through the technical scheme of the invention is the polymer solid el