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CN105722675B 层叠多孔膜、非水电解液二次电池用隔板及非水电解液二次电池 有权

层叠多孔膜、非水电解液二次电池用隔板及非水电解液二次电池
摘要：
本发明作为低湿度环境下的操作性良好的层叠多孔膜(1)，提供一种层叠多孔膜，是在聚烯烃多孔膜(5)的至少一面层叠有含有聚合物的层的层叠多孔膜，其满足下述[1]及[2]：[1]在温度23℃湿度50％环境下静置1小时后的、平行于与机械方向正交的方向的边(3)的翘起量为8mm以上。[2]在温度23℃湿度5％环境下静置1小时后的、平行于机械方向的边(2)的翘起量为15mm以下。
摘要（英）：

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.

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