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1. 发明申请

US20140072878A1 SEPARATOR FOR ELECTROCHEMICAL DEVICE AND PROCESS FOR PREPARING THE SAME 有权
标题翻译：电化学装置用分离装置及其制备方法
公开(公告)号：US20140072878A1
公开(公告)日：2014-03-13
申请号：US13978336
申请日：2012-10-12
申请人： Satoshi Nemoto , Yoshiharu Machii , Eri Murakami
发明人： Satoshi Nemoto , Yoshiharu Machii , Eri Murakami
IPC分类号： H01G11/52 , H01M2/14 , H01M2/16
CPC分类号： H01G11/52 , H01M2/145 , H01M2/1626 , H01M10/0525 , Y02T10/7011
摘要： The present invention relates to a process for preparing a separator for an electrochemical device, including the steps of: applying a slurry including at least cellulose fibers and a hydrophilic pore former with a boiling point of 180° C. or more onto a substrate; drying the slurry to form a sheet on the substrate; and separating the sheet from the substrate to obtain a separator, wherein the separator has a volume resistivity of 1500 Ω·cm or less determined by alternate current with a frequency of 20 kHz in which the separator is impregnated with a 1 mol/LiPF6/propylene carbonate solution. The present invention can provide a separator for electrochemical devices which has superior separator properties such as low inner resistivity for electrochemical devices, has high lithium shielding properties that cannot be exerted by non-woven fabrics, paper or the like, and can be prepared at a reasonable cost.
摘要翻译：本发明涉及一种制备电化学装置用隔膜的方法，包括以下步骤：将至少含有纤维素纤维和沸点为180℃以上的亲水性成孔剂的浆料涂布在基材上; 干燥浆料以在基材上形成片材; 并且将该片材与基板分离以获得隔板，其中隔板的体积电阻率为1500Ω·cm或更小，通过频率为20kHz的交流电流确定，其中隔板用1mol / LiPF 6 /丙烯碳酸盐溶液。本发明可以提供一种电化学器件用隔膜，其具有优异的隔离性能，例如电化学器件的低内阻，具有不能由无纺织物，纸等施加的高锂屏蔽性，并且可以在合理的成本。

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