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2. 发明申请

US20120088144A1 SEPARATOR HAVING POROUS COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME 有权
标题翻译：具有多孔涂层的分离器和包含其的电化学装置
公开(公告)号：US20120088144A1
公开(公告)日：2012-04-12
申请号：US13329966
申请日：2011-12-19
申请人： Sang-Young LEE , Pil-Kyu PARK , Jong-Hun KIM
发明人： Sang-Young LEE , Pil-Kyu PARK , Jong-Hun KIM
IPC分类号： H01M2/16
CPC分类号： H01M10/052 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M2/1673 , H01M4/386 , H01M4/387 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/587 , H01M10/0525
摘要： A separator includes a porous substrate having a plurality of pores, and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of filler particles and a binder polymer. The filler particles include electrode active material particles that are electrochemically oxidized and reduced. The binder polymer includes a copolymer having (a) a first monomer unit with a contact angle to water of 0 to 49° and (b) a second monomer unit with a contact angle to water of 50 to 130°. This separator is useful for an electrochemical device, particularly a lithium secondary battery. This separator ensures improved thermal stability and increased capacity of the electrochemical device. Also, inorganic particles in the porous coating layer formed on the porous substrate are not disintercalated due to excellent peeling resistance of the porous coating layer while the electrochemical is assembled.
摘要翻译：分离器包括具有多个孔的多孔基材和形成在多孔基材的至少一个表面上并由多个填料颗粒和粘合剂聚合物的混合物制成的多孔涂层。填料颗粒包括电化学氧化还原的电极活性材料颗粒。粘合剂聚合物包括具有（a）与水接触角为0〜49°的第一单体单元和（b）与水接触角为50〜130°的第二单体单元的共聚物。该分离器对于电化学装置，特别是锂二次电池是有用的。该分离器确保了电化学装置的热稳定性和增加的容量的改善。此外，由于在电化学组装时由于多孔涂层的优异的耐剥离性而在多孔基材上形成的多孔涂层中的无机颗粒不会脱嵌。

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