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    • 6. 发明授权
    • 고기밀다공질종이및그제조방법그리고고기밀다공질종이를이용한비수계전지
    • KR100418994B1
    • 2004-09-20
    • KR1019970059105
    • 1997-11-10
    • 니뽄 고도시 코포레이션
    • 데루유끼진젠지다이지미조부찌
    • D21H27/28
    • H01M2/1626D21F11/14D21H27/08H01G4/16
    • Paper that has minute pores, denseness, a high degree of airtightness and is made from cellulose which has superior heat and chemical resistance and is reproducible natural resources. Further, a non-aqueous battery which is improved to a higher level with regards to various characteristics, e.g., heat resistance, electrical characteristics such as ion transmissivity or liquid-holding characteristics, or prevention of an internal short circuit, through use of, as a separator for electronically separating a positively active substance from a negatively active substance, a novel porous highly-airtightened separator which is made from cellulose and has pores and denseness. The separator is manufactured from highly-airtightened porous paper having minute pores made by forming wet paper web from minute cellulose having a fiber diameter of 1 mum or less, and drying the wet paper web while voids in the wet paper web are maintained. The separator is used in a non-aqueous battery or electrolytic capacitor. More specifically, cellulose whose fibers are beaten to a JIS-CSF value of 200 ml or less (where the JIS-CSF value is measured in accordance with JIS P8121) or cellulose whose fibers are beaten to a value of 700 ml or less measured by modified CSF (wherein 3 g of a sample is measured as 0.3 g of a sample by the method specified in JIS P8121) is used as the minute cellulose.
    • 具有微孔,致密,高度气密性并由纤维素制成的纸,其具有优异的耐热性和耐化学性,并且具有可再现的自然资源。 此外,通过使用例如耐热性,离子透过率或液体保持特性等电特性或防止内部短路的各种特性,将其改善到更高水平的非水电池 用于从负极活性物质电子分离正极活性物质的隔膜,由纤维素制成且具有孔隙和致密性的新型多孔高度隔气隔膜。 隔膜由高度气密性的多孔纸制成,所述多孔性纸具有通过由纤维直径为1μm或更小的微小纤维素形成湿纸幅而制成的微孔,并且在湿纸幅中维持空隙的同时干燥湿纸幅。 隔膜用于非水电池或电解电容器。 具体而言,可以举出纤维以JIS-CSF值为200ml以下(根据JIS P8121测定JIS-CSF值)或纤维素纤维的打浆值为700ml以下的纤维素 作为微细纤维素,使用改良型CSF(其中,3g样品按照JIS P8121中规定的方法作为0.3g样品进行测定)。