SEPARATOR HAVING POROUS COATING LAYER AND ELECTROC

专利名称：SEPARATOR HAVING POROUS COATING

LAYER AND ELECTROCHEMICAL DEVICECONTAINING THE SAME

发明人：BAE, Yoon-Jung,PARK, Pil-Kyu,KIM, Jong-Hwan,HAN, Dong-Hun,LEE, Han-Ho,LEE,Sang-Young,YU, Ji-Sang,JANG, Hyun-Min

申请号：EP09718128.3申请日：20090303公开号：EP2260529B1公开日：20140820

摘要：A separator includes a porous substrate having a plurality of pores; and aporous coating layer formed on at least one surface of the porous substrate and madeof a mixture of a plurality of inorganic particles and a binder polymer, wherein the binderpolymer includes a first polyvinylidene fluoride -based copolymer having solubility of 25weight% or more with respect to acetone at 350C; a second polyvinylidene fluoride-based copolymer having solubility of 10 weight% or less with respect to acetone at 350C;and a polymer having a cyano group. This separator decelerates deterioration of life spanof an electrochemical device, and prevents disin- tercalation of inorganic particles in theporous coating layer, thereby improving safety of the electrochemical device.

申请人：LG CHEMICAL LTD

地址：KR

国籍：KR

代理机构：Cabinet Plasseraud

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