ORGANIC/INORGANIC COMPOSITE SEPARATOR AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME
摘要
<p>An organic/inorganic composite 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 with a plurality of inorganic particles and a binder polymer. The binder polymer is a copolymer including: (a) a first monomer unit having a contact angle to a water drop in the range from 0° to 49°; and (b) a second monomer unit having a contact angle to a water drop in the range from 50° to 130°. This organic/inorganic composite separator has excellent thermal stability, so it may restrain an electric short circuit between a cathode and an anode. In addition, the separator may prevent inorganic particles in the porous coating layer from being extracted during an assembling process of an electrochemical device, thereby improving stability of an electrochemical device.</p>
申请公布号
WO2008108583(A1)
申请公布日期
2008.09.12
申请号
WO2008KR01263
申请日期
2008.03.06
申请人
LG CHEM, LTD.;PARK, JONG-HYEOK;LEE, SANG-YOUNG;HONG, JANG-HYUK;NAM, MOON-JA;YOO, JUNG-A;KIM, SANG-SEOP;HAN, CHANG-HUN
发明人
PARK, JONG-HYEOK;LEE, SANG-YOUNG;HONG, JANG-HYUK;NAM, MOON-JA;YOO, JUNG-A;KIM, SANG-SEOP;HAN, CHANG-HUN