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METHOD OF MANUFACTURING LAMINATED POROUS FILM

机译:层压多孔膜的制造方法

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a laminated porous film that exhibits breakdown characteristics more excellent than a conventional polypropylene porous film, and exhibits shutdown characteristics for ensuring safety of a battery.;SOLUTION: A laminated porous film includes at least first to third porous layers, and has β activation force and/or β crystal generation force. The method of manufacturing the laminated porous film includes: manufacturing a laminated nonporous membrane including a first layer formed of a composition containing a crystal nucleating agent, a second layer formed of a composition having a peak value of a crystal melting temperature higher than a peak value of a crystal melting temperature of the first layer composition, and a third layer formed of a composition having a peak value of a crystal melting temperature lower than the peak value of the crystal melting temperature of the first layer composition in a polypropylene resin; and forming a porous membrane from the laminated nonporous membrane.;COPYRIGHT: (C)2013,JPO&INPIT
机译:解决的问题:提供一种制造层压多孔膜的方法,该层压多孔膜表现出比常规聚丙烯多孔膜更优异的击穿特性,并且具有用于确保电池安全性的关断特性。到第三多孔层,并具有β激活力和/或β晶体产生力。制造层叠多孔膜的方法包括:制造层叠无孔膜,该层叠无孔膜包括由包含结晶成核剂的组合物形成的第一层,由晶体熔融温度的峰值高于峰值的组合物形成的第二层。所述第一层组合物的晶体熔化温度和由聚丙烯树脂中的晶体熔化温度的峰值低于所述第一层组合物的晶体熔化温度的峰值的组合物形成的第三层;并由层压的无孔膜形成多孔膜。;版权所有:(C)2013,日本特许厅&INPIT

著录项

  • 公开/公告号JP2013075526A

    专利类型

  • 公开/公告日2013-04-25

    原文格式PDF

  • 申请/专利权人 MITSUBISHI PLASTICS INC;

    申请/专利号JP20120264788

  • 发明设计人 USAMI YASUSHI;YAMADA TAKEMIKI;TAKAGI JUN;

    申请日2012-12-03

  • 分类号B32B27/32;C08J9/00;B32B5/18;

  • 国家 JP

  • 入库时间 2022-08-21 16:58:56

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