DENSE MEMBRANE HAVING HYDROXIDE ION CONDUCTIVITY AND COMPOSITE MATERIAL

• Main Authors: KITOH KENSHIN, ASAI KOUTA
• Format: Patent
• Language: English; Korean
• Published: 09.09.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; CONDUCTORS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; INORGANIC CHEMISTRY; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

본 발명에서는 수산화물 이온 전도성을 갖고, 또한, 단위 면적당의 He 투과도가 10 ㎝/min·atm 이하인 수산화물 이온 전도 치밀막이 제공된다. 본 발명에 의하면, 수산화물 이온 이외의 물질(특히 아연 이차 전지에서 아연 덴드라이트 성장을 일으키는 Zn)의 투과를 현저히 저감할 수 있고, 이에 의해 전지용 세퍼레이터 등의 소정의 용도(특히 아연 덴드라이트 성장이 문제가 되는 아연 이차 전지 용도)에 특히 적합한, 치밀성이 매우 높은 수산화물 이온 전도 치밀막을 제공할 수 있다. Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than hydroxide ions (in particular, Zn, which may cause growth of dendritic zinc in a zinc secondary battery) and that is particularly suitable for use in, for example, a separator for a battery (in particular, a zinc secondary battery, which may cause growth of dendritic zinc).