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Porous three-layer laminated sheet, method for producing the same, and separator for power storage device comprising three-layer laminated sheet
Porous three-layer laminated sheet, method for producing the same, and separator for power storage device comprising three-layer laminated sheet
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机译:多孔质的三层层叠体片,其制造方法以及具有该三层层叠体片的蓄电装置用隔板
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摘要
PROBLEM TO BE SOLVED: To provide a three-layer laminated sheet excellent in sheet strength, productivity, and air permeability, to provide a production method capable of commercially producing in a continuous manner, and to provide a separator for power storage element comprising the three-layer laminated sheet.SOLUTION: In a three-layer laminated sheet comprising: core material S of a nonwoven fabric mainly comprising thermoplastic fibers; and porous fiber layers P and Q of a layer above and a layer below the core material composed mainly of fine diameter cellulose fibers, the three-layer laminated sheet has an air permeability of 1000 sec/100 ml or less, as measured by the Gurley method, the three-layer laminated sheet has a weight in a range of 2 to 15 g/m, and the three-layer laminated sheet has a thickness in a range of 5 to 40 μm. The nonwoven fabric S contains, as constituent components, continuous filament selected from EVA, PE, PP, PET and the like.SELECTED DRAWING: Figure 1
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机译:解决的问题:提供具有优异的片材强度,生产率和透气性的三层层压片材,提供能够以连续方式进行商业生产的生产方法,并提供包括这三种材料的用于蓄电元件的隔板解决方案:在三层层压板中,包括:主要包含热塑性纤维的无纺布的芯材S;并且,由Gurley测定的三层层叠片的透气度为1000sec / 100ml以下,并且在主要由细径纤维素纤维构成的芯材的上层和下层的多孔质纤维层P,Q的下层。在该方法中,三层层叠片的重量为2〜15g / m 2,三层层叠片的厚度为5〜40μm。无纺布S含有选自EVA,PE,PP,PET等的连续长丝作为构成成分。
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