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    • 77. 发明申请
    • Battery separator and battery comprising same
    • 电池分离器和包含它的电池
    • US20060194100A1
    • 2006-08-31
    • US11340095
    • 2006-01-26
    • Masanao TanakaToshiaki TakaseYasuhiro ItoYoshihiko Kondo
    • Masanao TanakaToshiaki TakaseYasuhiro ItoYoshihiko Kondo
    • H01M2/16D04H3/00
    • D04H1/48D04H1/49D21H13/14D21H13/16D21H15/10H01M2/162Y10T442/611
    • A battery separator comprising a nonwoven fabric, wherein the nonwoven fabric contains (1) superfine fibers having a fiber diameter of 3 μm or less, (2) noncircular fine fibers having a noncircular cross-sectional shape and having a fiber diameter of 3 to 5 μm (excluding 3 μm), the fiber diameter meaning a diameter of a circle having an area the same as that of the noncircular cross-sectional shape, and (3) polypropylene based high-strength composite fibers containing a fusible component on the surface thereof and having a tensile strength of 4.5 cN/dtex or more, and the fusible component contained in the polypropylene based high-strength composite fibers is fused, and a battery comprising the battery separator are disclosed. A battery separator of the present invention has a high electrolyte-holding capacity and is capable of effectively preventing a short circuit, even if the separator is designed to be thinner to enhance the capacity of a battery.
    • 1.一种电池用隔膜,其特征在于,上述非织造布含有(1)纤维直径3μm以下的超细纤维,(2)具有非圆形截面形状且纤维直径为3〜5的非圆形细纤维 妈妈(不包括3个妈妈),纤维直径是指具有与非圆形横截面形状相同的圆的直径,和(3)在其表面上含有可熔组分的聚丙烯基高强度复合纤维 拉伸强度为4.5cN / dtex以上,聚丙烯系高强度复合纤维中所含的熔融成分熔融,并且公开了包含电池隔板的电池。 本发明的电池用隔膜具有高的电解液保持能力,能够有效地防止短路,即使将隔膜设计得更薄以增强电池的容量。