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    Microporous polyolefin battery separator
    3.
    发明授权
    Microporous polyolefin battery separator 失效
    微孔聚烯烃电池隔膜

    公开(公告)号：US5922492A

    公开(公告)日：1999-07-13

    申请号：US864079

    申请日：1997-05-28

    申请人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai ,  Soichiro Yamaguchi

    发明人： Kotaro Takita ,  Koichi Kono ,  Norimitsu Kaimai ,  Soichiro Yamaguchi

    IPC分类号： B32B5/24 ,  D04H13/00 ,  H01M2/16

    CPC分类号： H01M2/162 ,  B32B5/24 ,  H01M2/1653

    摘要： A microporous polyolefin composite membrane, preferably for use as a battery separator, comprising a microporous polyolefin membrane and a polyolefin nonwoven fabric laminated on at least one surface of the microporous polyolefin membrane. The composite membrane has a thickness of 25 to 200 .mu.m, a porosity of 30 to 70%, an air permeability of 100 to 2000 sec/100 cc and a surface opening area ratio of 50 to 90% on at least one outer surface thereof. The microporous polyolefin membrane comprises a matrix polyolefin component which is a polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more or a polyolefin mixture containing the polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more, and has a porosity of 30 to 95%, an air permeability of 100 to 2000 sec/100 cc, an average open pore diameter of 0.001 to 1 .mu.m and a tensile strength at break of 500 kg/cm.sup.2 or more. The microporous polyolefin membrane may further comprise a shutdown polymer component to shut down the pores, thereby making the composite membrane impermeable. The polyolefin nonwoven fabric comprises fine fibers and has an air permeability of 0.1 to 100 sec/100 cc and a basis weight of 5 to 50 g/m.sup.2. The polyolefin nonwoven fabric prevents the composite membrane from melting down at a low temperature thereby preventing the short-circuit between the electrodes.

    摘要翻译： 一种微孔聚烯烃复合膜，优选用作电池隔板，其包含微孔聚烯烃膜和聚烯烃无纺布，该聚烯烃无纺布层叠在微孔聚烯烃膜的至少一个表面上。 复合膜的至少一个外表面的厚度为25〜200μm，孔隙率为30〜70％，透气度为100〜2000秒/ 100cc，表面开口面积率为50〜90％ 。 微孔聚烯烃膜包括基重聚烯烃组分，其是重均分子量为5×10 5以上的聚烯烃或含有重均分子量为5×10 5以上的聚烯烃的聚烯烃混合物，其孔隙率为30〜95％ 透气度为100〜2000秒/ 100cc，平均开孔直径为0.001〜1μm，断裂强度为500kg / cm 2以上。 微孔聚烯烃膜还可以包括关闭聚合物组分以关闭孔，从而使复合膜不可渗透。 聚烯烃无纺布包括细纤维，透气度为0.1〜100秒/ 100cc，单位面积重量为5〜50g / m 2。 聚烯烃无纺布防止复合膜在低温下熔化，从而防止电极之间的短路。

    Coextrusion die and manifold system therefor
    7.
    发明申请
    Coextrusion die and manifold system therefor 审中-公开
    共挤出模具和歧管系统

    公开(公告)号：US20090072434A1

    公开(公告)日：2009-03-19

    申请号：US11901164

    申请日：2007-09-14

    申请人： Kotaro Takita ,  Shintaro Kikuchi ,  Koichi Kono

    发明人： Kotaro Takita ,  Shintaro Kikuchi ,  Koichi Kono

    IPC分类号： B29C47/88

    CPC分类号： B29C55/023 ,  B29C48/08 ,  B29C48/21 ,  B29C48/30 ,  B29C48/307 ,  B29C48/313 ,  B29C48/705 ,  B29C55/005 ,  B29K2023/0683 ,  B29K2105/04 ,  B29L2031/3468 ,  B29L2031/7146

    摘要： A coextrusion die for producing a multilayer film or sheet of thermoplastic materials. The coextrusion die includes a die outlet through which a layered melt stream of the thermoplastic materials is extruded as a multilayer film or sheet, a first die section for producing a core layer, the first die section having a flat manifold, the flat manifold having a feed entrance and a pressure manifold in communication with the slotted die outlet, a second die section for producing a first skin layer, the second die section having a cross flow manifold, the cross flow manifold having a flow path wherein a portion of a melt stream of the thermoplastic material traverses the second die section's length more than once, the cross flow manifold having a feed entrance and a pressure manifold in communication with the slotted die outlet, and a third die section for producing a second skin layer, the third die section having a cross flow manifold, the cross flow manifold having a flow path wherein a portion of a melt stream of the thermoplastic material traverses the third die section's length more than once, the cross flow manifold having a feed entrance and a pressure manifold in communication with the slotted die outlet. A process for making a multilayer extrudate of thermoplastic materials is also provided.

    摘要翻译： 一种用于生产多层膜或热塑性材料片的共挤出模。 共挤出模具包括模具出口，热塑性材料的分层熔融流体通过该模具出口作为多层膜或片材挤出，用于制造芯层的第一模具部分，第一模具部分具有平坦的歧管，所述平面歧管具有 进料入口和与开槽模具出口连通的压力歧管，用于产生第一表皮层的第二模具部分，所述第二模具部分具有横流歧管，所述横流歧管具有流动路径，其中一部分熔体流 所述热塑性材料横穿所述第二模具部分的长度不止一次，所述横流歧管具有与所述开槽模具出口连通的进料入口和压力歧管，以及用于产生第二表皮层的第三模具部分，所述第三模具部分 具有横流歧管，所述横流歧管具有流动路径，其中所述热塑性材料的熔体流的一部分穿过所述第三模具部分 长度不止一次，横流歧管具有进料入口和与开槽模具出口连通的压力歧管。 还提供了制造热塑性材料的多层挤出物的方法。

    Thin non-protonic electrolytic film, immobilized liquid-film conductor, and polymer cell
    10.
    发明授权
    Thin non-protonic electrolytic film, immobilized liquid-film conductor, and polymer cell 有权
    薄非质子电解膜，固定液膜导体和聚合物电池

    公开(公告)号：US06235432B1

    公开(公告)日：2001-05-22

    申请号：US09117994

    申请日：1998-08-11

    申请人： Koichi Kono ,  Kotaro Takita ,  Norimitsu Kaimai

    发明人： Koichi Kono ,  Kotaro Takita ,  Norimitsu Kaimai

    IPC分类号： H01M614

    CPC分类号： H01G9/155 ,  B66F19/005 ,  G02F1/13439 ,  G02F1/155 ,  H01B1/122 ,  H01M4/13 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0565 ,  H01M2300/0085 ,  Y02E60/13 ,  Y10T29/49115

    摘要： The thin film of non-protonic electrolyte comprises the microporous polyolefin film impregnated with an immobilized non-protonic electrolytic solution, where the film is treated to have improved affinity for the non-protonic solution by graft polymerization of the film with a monomer which can dissolve the non-protonic electrolytic solution, coating of the film with terminal-modified polypropylene which can dissolve the non-protonic electrolytic solution or coating of the film with wax which can dissolve the non-protonic electrolytic solution. The electrolyte-immobilized liquid-film conductor comprises the microporous polyolefin film impregnated with an immobilized non-protonic electrolytic solution, where the film contains an electron-conductive substance and is treated to have improved affinity for the non-protonic solution. The thin film of non-protonic electrolyte comprising the microporous polyolefin film gives a polymer battery, such as lithium battery, when combined with an anode and cathode. The polymer battery comprising the thin film of non-protonic electrolyte and the electrolyte-immobilized liquid-film conductor which is used at least one of the anode and cathode is advantageous over the conventional lithium battery of polymer electrolyte in various aspects, such as higher discharging function at low temperature, lesser self-discharge at high temperature, and higher charge/discharge characteristics over extended periods.

    摘要翻译： 非质子电解质薄膜包括浸渍有固定化非质子电解质溶液的微孔聚烯烃膜，其中膜被处理以对非质子溶液具有改善的亲和力，通过该膜与可溶解的单体的接枝聚合 非质子电解液，用可溶解非质子电解液的末端改性聚丙烯涂覆膜或用可溶解非质子电解液的蜡涂覆膜。 电解质固定液膜导体包括浸渍有固定的非质子电解液的微孔聚烯烃膜，其中该膜含有电子传导性物质，并被处理以改善对非质子溶液的亲和力。 当与阳极和阴极组合时，包含微孔聚烯烃膜的非质子电解质的薄膜产生诸如锂电池的聚合物电池。 包含非质子电解质薄膜的聚合物电池和用于阳极和阴极中的至少一个的电解质固定液膜导体在各种方面都比常规的锂聚合物电解质锂电池有优势，例如较高的放电 低温下的功能，高温下的自放电较少，以及较长的充电/放电特性。