发明名称 |
ORGANIC/ INORGANIC COMPOSITE SEPARATOR HAVING MORPHOLOGY GRADIENT, MANUFACTURING METHOD THEREOF AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME |
摘要 |
Disclosed is an organic/inorganic composite separator including: a porous substrate having pores; and a porous active layer containing a mixture of inorganic particles and a binder polymer with which at least one surface of the porous substrate is coated. The organic/inorganic composite separator of the present invention may be useful to enhance peeling and scratch resistances and improve a lamination characteristic by introducing a porous active layer onto a porous substrate having pores, the porous active layer having heterogeneity of morphology toward a thickness direction in which a content ratio of the binder polymer/inorganic particles present in a surface layer is higher than that of the binder polymer/inorganic particles present inside the surface layer. Accordingly, the stability and performances of a battery can be improved together since the detachment of inorganic particles from the porous active layer may be reduced during the assembly process of the electrochemical device. |
申请公布号 |
EP1972017(A4) |
申请公布日期 |
2011.06.01 |
申请号 |
EP20060823929 |
申请日期 |
2006.12.06 |
申请人 |
LG CHEMICAL CO. LTD |
发明人 |
LEE, SANG-YOUNG;SEO, DAE-JONG;SOHN, JOON-YONG;KIM, SEOK-KOO;HONG, JANG-HYUK;KIM, YOUNG-SOO;JANG, HYUN-MIN |
分类号 |
H01M2/14 |
主分类号 |
H01M2/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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