SEPARATOR HAVING POROUS COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME
摘要
A separator includes a monolayer-type polyolefin-based micro-porous film having a porosity of 40 to 60%, an average pore diameter of 60 nm or less, and an air permeability of 350 s/100mL or less; and a porous coating layer formed on at least one surface of the micro-porous film and made of a mixture of a plurality of inorganic particles and a binder polymer. An electrochemical device having the above separator has excellent thermal stability and allows a high power while minimizing the occurrence of leak current.
申请公布号
EP2333876(B1)
申请公布日期
2016.08.03
申请号
EP20090811702
申请日期
2009.09.03
申请人
LG CHEM, LTD.;TORAY BATTERY SEPARATOR FILM CO., LTD.