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    • 8. 发明申请
    • SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非电解电解电池分离器和非水电解质二次电池
    • US20130224560A1
    • 2013-08-29
    • US13881314
    • 2011-10-21
    • Takashi Yoshitomi
    • Takashi Yoshitomi
    • H01M2/16
    • H01M2/162H01M2/1613H01M2/1646H01M2/1653H01M2/1666H01M2/1686H01M2/348H01M10/0525
    • Disclosed is a separator for a non-aqueous electrolyte battery, the separator including a polyolefin microporous substrate in which a content of polyolefin having a molecular weight of 100,000 or less is from 10% by mass to 25% by mass relative to a total amount of polyolefin, and a heat resistant porous layer that is formed on one or both sides of the polyolefin microporous substrate and that includes a heat resistant polymer, wherein a maximum value of S, which is represented by the following formula (1), is 0.8 or more, and a temperature exhibiting the maximum value of S is from 130° C. to 155° C.: S=d(log R)/dT  Formula (1) wherein R represents a resistance (ohm·cm2) of a cell, and T represents a temperature (° C.), in a measurement using a battery that includes the cell that is provided with a separator for a non-aqueous electrolyte battery, at a temperature rising rate of 1.6° C./min.
    • 公开了一种非水电解质电池用隔膜,所述隔膜包括聚烯烃微孔基材,其中分子量为100,000以下的聚烯烃的含量相对于聚合物微孔基材的总量为10质量%〜25质量% 聚烯烃和形成在聚烯烃微孔基材的一侧或两侧上并且包括耐热聚合物的耐热多孔层,其中由下式(1)表示的S的最大值为0.8或 表示S的最大值的温度为130℃〜155℃:S = d(logR)/ dTFormula(1)其中,R表示电池的电阻(欧姆·cm 2), 在使用包括具有非水电解质电池用隔膜的电池的电池的测定中,T表示温度(℃),升温速度为1.6℃/分钟。