METHOD FOR PRODUCING LAMINATED POROUS FILM
    1.
    发明申请

    公开(公告)号:US20170229696A1

    公开(公告)日:2017-08-10

    申请号:US15497562

    申请日:2017-04-26

    IPC分类号: H01M2/14 H01M2/16

    摘要: The present invention provides a method for producing a laminated porous film comprising a porous film substrate and a heat-resistant layer. The method comprises forming a heat-resistant layer mainly comprising a filler on the surface of the porous film substrate by applying a coating slurry comprising a solvent, a binder resin and the filler to the surface of the porous film substrate and then removing the solvent, wherein the coating slurry is prepared so as to have a contact angle of 75° or more with an untreated porous film substrate, and the method comprises conducting surface treatment of a porous film substrate so that the contact angle of the coating slurry with the porous film substrate can be 65° or less before applying the coating slurry to the surface of the porous film substrate.

    LAMINATED POROUS FILM, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    5.
    发明申请
    LAMINATED POROUS FILM, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    层压多孔膜,非水电解质二次电池分离器和非水电解质二次电池

    公开(公告)号:US20160268570A1

    公开(公告)日:2016-09-15

    申请号:US15031365

    申请日:2014-10-27

    IPC分类号: H01M2/16 H01M10/0525 H01M2/14

    摘要: As a laminated porous film realizing excellent handling properties in a low-humidity environment, a laminated porous film in which a layer containing a polymer is laminated on at least one side of a polyolefin porous film, satisfying the following (1) and (2) is provided. (1) When the laminated porous film has left still for 1 hour in an environment at a temperature of 23° C. and a humidity of 50%, a lifting amount of the side parallel with the direction perpendicular to the machine direction is 8 mm or more. (2) When the laminated porous film has left still for 1 hour in an environment at a temperature of 23° C. and a humidity of 5%, a lifting amount of the side parallel with the machine direction is 15 mm or less.

    摘要翻译: 作为在低湿度环境下实现优异处理性能的层压多孔膜,在聚烯烃多孔膜的至少一面层叠含有聚合物的层的层压多孔膜,满足以下(1)和(2) 被提供。 (1)叠层多孔膜在温度23℃,湿度50%的环境中静置1小时时,与机器方向垂直的方向平行的一侧的提升量为8mm 或者更多。 (2)当层压多孔膜在温度23℃,湿度5%的环境中静置1小时时,与机器方向平行的一侧的提升量为15mm以下。