公开(公告)号：EP4274016A2

公开(公告)日：2023-11-08

申请号：EP23191433.4

申请日：2005-12-22

申请人： Toray Industries, Inc. ,  LG Energy Solution, Ltd.

发明人： LEE, Sang-Young ,  KIM, Seok-Koo ,  SUK, Jung-Don ,  YONG, Hyun-hang ,  HONG, Jang-Hyuk ,  AHN, Soon-Ho

IPC分类号： H01M50/46

摘要： Disclosed is an organic/inorganic composite porous separator comprising: (a) a polyolefin-based separator substrate; and (b) an active layer formed by coating at least one region selected from the group consisting of a surface of the substrate and a part of pores present in the substrate with a mixture of inorganic particles and a binder polymer, wherein the inorganic particles in the active layer are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a pore structure. A method for manufacturing the same separator and an electrochemical device including the same separator are also disclosed. An electrochemical device comprising the organic/inorganic composite porous separator shows improved thermal and electrochemical safety and quality, simultaneously.

公开(公告)号：EP3863110A1

公开(公告)日：2021-08-11

申请号：EP21165431.4

申请日：2005-12-22

申请人： LG Chem, Ltd. ,  Toray Industries, Inc.

发明人： LEE, Sang-Young ,  KIM, Seok-Koo ,  SUK, Jung-Don ,  YONG, Hyun-hang ,  HONG, Jang-Hyuk ,  AHN, Soon-Ho

IPC分类号： H01M50/446 ,  H01M50/403 ,  H01M10/0525 ,  H01M50/449 ,  H01M50/46

摘要： Disclosed is an organic/inorganic composite porous separator comprising: (a) a polyolefin-based separator substrate; and (b) an active layer formed by coating at least one region selected from the group consisting of a surface of the substrate and a part of pores present in the substrate with a mixture of inorganic particles and a binder polymer, wherein the inorganic particles in the active layer are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a pore structure. A method for manufacturing the same separator and an electrochemical device including the same separator are also disclosed. An electrochemical device comprising the organic/inorganic composite porous separator shows improved thermal and electrochemical safety and quality, simultaneously.