公开(公告)号：US20120077113A1

公开(公告)日：2012-03-29

申请号：US13320863

申请日：2010-06-17

申请人： Yongkyoung Kim ,  Jongmoon Sung ,  Jean Lee ,  Dongjin Joo ,  Youngkeun Lee

发明人： Yongkyoung Kim ,  Jongmoon Sung ,  Jean Lee ,  Dongjin Joo ,  Youngkeun Lee

IPC分类号： H01M2/16 ,  H01M8/02 ,  B05D5/00 ,  B32B3/26 ,  B32B7/02

CPC分类号： H01M2/1653 ,  C08J7/047 ,  C08J2323/04 ,  C08J2465/00 ,  C08J2477/00 ,  C08J2481/04 ,  H01M2/166 ,  H01M2/1686 ,  H01M8/1023 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1051 ,  H01M10/052 ,  Y10T428/2495 ,  Y10T428/249978

摘要： Provided is a microporous organic/ inorganic composite coated layer comprising a heat resistant resin and inorganic particles, formed on at least one side of microporous polyethylene. The microporous polyethylene composite film is characterized by sufficient permeability and heat resistance at the same time, of which the permeability (Gurley) of overall composite film including a coated layer is not more than 300 sec; shrinkage after 150° C. for 1 hour is 0-3% in both MD/TD directions; maximum shrinkage in TMA is not more than 3%, and TMA meldown temperature is 145-200° C. The microporous polyethylene composite film formed by means of the coated layer possesses stability at high temperature as well as excellent permeability, thereby ensuring reliability and efficiency of a battery at the same time. A separator which conforms to high power/high capacity can be provided thereby.

摘要翻译： 本发明提供一种微孔有机/无机复合涂层，其包含在微孔聚乙烯的至少一面上形成的耐热树脂和无机颗粒。 微孔聚乙烯复合膜的特征在于同时具有足够的渗透性和耐热性，其中包括涂层的整个复合膜的渗透率（Gurley）不超过300秒; 在150℃下1小时的收缩率在MD / TD方向上为0-3％; TMA最大收缩率不大于3％，TMA熔融温度为145-200℃。通过涂层形成的微孔聚乙烯复合膜在高温下具有稳定性和优异的渗透性，从而确保了可靠性和效率 的电池同时。 可以提供符合高功率/高容量的分离器。