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公开(公告)号：US5213722A
公开(公告)日：1993-05-25
申请号：US795141
申请日：1991-11-20
IPC分类号： H01M2/16
CPC分类号： H01M2/162
摘要： A method for making a separator material which is useful as a separator for storage batteries. The method involves applying a sulfonated surface layer to polyolefin resin fibers which form a woven or non-woven fabric. According to one embodiment, polyolefin resin fibers made of a first polyolefin resin are coated with a surface layer of a second polyolefin resin which is more susceptible to sulfonation than the first polyolefin resin from which said fibers are made. At the stage when the polyolefin fibers are coated with the second polyolefin resin they may be either individual fibers or formed into a woven or non-woven fabric. Thereafter, the fibers are subjected to a sulfonation process until the surface layer is sulfonated and a decomposition product formed by the sulfonation process is then removed from the fibers to obtain a separator material.
摘要翻译： 一种隔膜材料的制造方法，其可用作蓄电池的隔板。 该方法包括将磺化表面层施加到形成织造或非织造织物的聚烯烃树脂纤维上。 根据一个实施方案，由第一聚烯烃树脂制成的聚烯烃树脂纤维涂覆有比制备所述纤维的第一聚烯烃树脂更易于磺化的第二聚烯烃树脂的表面层。 在聚烯烃纤维被第二聚烯烃树脂涂覆的阶段，它们可以是单独的纤维，也可以形成织造或非织造织物。 此后，对纤维进行磺化处理直到表面层被磺化，然后从纤维中除去通过磺化过程形成的分解产物，从而获得隔板材料。
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公开(公告)号：US5100723A
公开(公告)日：1992-03-31
申请号：US272998
申请日：1988-11-17
IPC分类号： H01M2/16
CPC分类号： H01M2/162 , Y10T428/2938 , Y10T428/2964 , Y10T428/2971 , Y10T442/2918
摘要： Separator materials which are adapted for use in storage batteries and which comprise a fabric sheet of polyolefin resin fibers and a surface layer of a polyolefin resin sulfonated to such an extent that sulfone groups are formed in an amount sufficient to impart an appropriate degree of hydrophilicity. The surface layer is formed on individual resin fibers. The methods of making the separator material are also described.
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