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    • 3. 发明公开
    • HEAT-RESISTANT AND HIGH-TENACITY ULTRAFINE FIBROUS SEPARATION LAYER, METHOD FOR MANUFACTURING SAME, AND SECONDARY CELL USING SAME
    • VERFAHREN ZUR HERSTELLUNG EINERWÄRMEFESTENULTRAFEINEN FASERTRENNSCHICHT VON HOHERZÄHIGKEIT
    • EP2498320A2
    • 2012-09-12
    • EP10828502.4
    • 2010-11-03
    • Amogreentech Co., Ltd.
    • SEO, In YongJO, Byung GwangJUNG, Yong SikKIM, Yun Hye
    • H01M2/16H01M10/38
    • H01M2/162H01G9/02H01M2/145H01M2/1646H01M2/185H01M10/0525Y02E60/122Y02P70/54Y10T442/696
    • Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70wt% of a heat-resistant polymer material and 30 to 50wt% of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170°C and 210°C so as to obtain the separator.
    • 提供一种具有耐热性和高强度的超细纤维状多孔隔膜及其制造方法,其能够通过使用空气静电纺丝(AES)方法大量生产耐热高强度超细纤维隔板,并且 使用该二次电池的二次电池。 制造耐热高强度超细纤维多孔隔膜的方法包括以下步骤:将耐热聚合物材料为50〜70重量%,溶胀性聚合物材料为30〜50重量%的混合溶液进行空气静电纺丝, 从而形成耐热超细纤维的多孔网,其中耐热聚合物材料和溶胀聚合物材料以超细纤维形式固结; 进行干燥以控制留在多孔织物表面上的溶剂和水分; 并在170℃至210℃的温度下对干燥的多孔纤维网进行热压,以获得隔膜。