SEPARATOR HAVING POROUS COATING LAYER AND ELECTROC

专利名称：SEPARATOR HAVING POROUS COATING

LAYER AND ELECTROCHEMICAL DEVICECONTAINING THE SAME

发明人：LEE, Sang-Young,PARK, Pil-Kyu,KIM, Jong-Hun

申请号：EP08851676.0申请日：20081118公开号：EP2220705B1公开日：20150826

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 filler particles and a binder polymer. The filler particlesinclude electrode active material particles that are electrochemically oxidized andreduced. The binder polymer includes a copolymer having (a) a first monomer unit with acontact angle to water of 0 to 49° and (b) a second monomer unit with a contact angle towater of 50 to 130°. This separator is useful for an electrochemical device, particularly alithium secondary battery. This separator ensures improved thermal stability andincreased capacity of the electrochemical device. Also, inorganic particles in the porouscoating layer formed on the porous substrate are not disintercalated due to excellentpeeling resistance of the porous coating layer while the electrochemical is assembled.

申请人：LG CHEMICAL LTD

地址：KR

国籍：KR

代理机构：Hoffmann Eitle

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