-
公开(公告)号：EP4366069A2
公开(公告)日：2024-05-08
申请号：EP24163130.8
申请日：2008-03-06
发明人： PARK, Jong-Hyeok , LEE, Sang-Young , HONG, Jang-Hyuk , NAM, Moon-Ja , YOO, Jung-A , KIM, Sang-Seop , HAN, Chang-Hun
IPC分类号： H01M50/491
CPC分类号： H01M10/052 , Y02E60/10 , H01M50/446 , Y02P70/50 , H01M50/451 , H01M50/457 , H01M50/491 , H01M50/443 , H01M50/489
摘要： 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 o° 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.
-
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
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：EP4443556A1
公开(公告)日：2024-10-09
申请号：EP24181932.5
申请日：2007-02-16
IPC分类号： H01M4/36
CPC分类号： H01M2004/02120130101 , H01M10/653 , H01M10/0525 , H01M10/4235 , H01M10/654 , Y02E60/10 , H01M4/366 , H01M4/13 , H01M4/139 , H01M50/46 , Y02P70/50 , H01M50/417 , H01M50/491 , H01M50/489 , H01M50/42 , H01M50/426
摘要： Disclosed is a separator for a lithium secondary battery comprising a porous substrate and an organic/inorganic composite porous coating layer on the surface, in the pore, or on the surface and in the pore of the substrate, wherein the organic/inorganic composite porous coating layer comprises heat-absorbing inorganic particles, a binder polymer, and inorganic particles having a dielectric constant of 5 or more, which include at least one selected from the group consisting of SrTiO3, SnO2, CeO2, MgO, NiO, ZnO, Y2O3, ZrO2, Al2O3, TiO2, and BaTiO3, wherein the heat-absorbing inorganic particle is at least one particle selected from the group consisting of antimony trioxide (Sb2O3), antimony tetraoxide (Sb2O4), antimony pentaoxide (Sb2O5), aluminum hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), H3BO3, HBO2, ZnSnO4, ZnSnO3, and ZnSn(OH)6. An electrochemical device including the separator is also disclosed. The separator using the heat-absorbing inorganic particles as a component for forming or coating the separator can ensure excellent thermal safety and minimizes degradation of the quality of a battery.
-
公开(公告)号：EP4366069A3
公开(公告)日：2024-08-07
申请号：EP24163130.8
申请日：2008-03-06
发明人： PARK, Jong-Hyeok , LEE, Sang-Young , HONG, Jang-Hyuk , NAM, Moon-Ja , YOO, Jung-A , KIM, Sang-Seop , HAN, Chang-Hun
IPC分类号： H01M50/443 , H01M50/446 , H01M50/451 , H01M50/457 , H01M50/489 , H01M50/491 , H01M10/052
CPC分类号： H01M10/052 , Y02E60/10 , H01M50/446 , Y02P70/50 , H01M50/451 , H01M50/457 , H01M50/491 , H01M50/443 , H01M50/489
摘要： 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 o° 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.
-
5.发明公开
公开(公告)号：EP4379943A2
公开(公告)日：2024-06-05
申请号：EP24170980.7
申请日：2008-02-05
发明人： KIM, Seok-Koo , Sohn, Joon-Yong , PARK, Jong-Hyeok , JANG, Hyun-Min , SHIN, Byoung-Jin , LEE, Sang-Young , HONG, Jang-Hyuk
IPC分类号： H01M50/491
CPC分类号： H01M10/052 , H01M10/056 , H01M10/0562 , H01M2300/006820130101 , Y02E60/10 , H01M50/403 , H01M50/446 , H01M50/451 , H01M50/491
摘要： An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C. for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.
-
6.发明公开
公开(公告)号：EP4401232A1
公开(公告)日：2024-07-17
申请号：EP24175234.4
申请日：2008-02-05
发明人： KIM, Seok-Koo , SOHN, Joon-Yong , PARK, Jong-Hyeok , JANG, Hyung-Min , SHIN, Byoung-Jin , LEE, Sang-Young , HONG, Jang-Hyuk
IPC分类号： H01M50/489 , H01M10/056 , H01M50/403 , H01M50/446 , H01M50/491 , H01M50/451 , H01M10/0562 , H01M10/052
CPC分类号： H01M10/052 , H01M10/056 , H01M10/0562 , H01M2300/006820130101 , Y02E60/10 , H01M50/403 , H01M50/446 , H01M50/451 , H01M50/491 , H01M50/489
摘要： An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.
-
7.发明公开
公开(公告)号：EP4379943A3
公开(公告)日：2024-07-10
申请号：EP24170980.7
申请日：2008-02-05
发明人： KIM, Seok-Koo , Sohn, Joon-Yong , PARK, Jong-Hyeok , JANG, Hyun-Min , SHIN, Byoung-Jin , LEE, Sang-Young , HONG, Jang-Hyuk
IPC分类号： H01M50/489 , H01M50/491 , H01M10/056 , H01M50/403 , H01M50/446 , H01M50/451 , H01M10/0562 , H01M10/052
CPC分类号： H01M10/052 , H01M10/056 , H01M10/0562 , H01M2300/006820130101 , Y02E60/10 , H01M50/403 , H01M50/446 , H01M50/451 , H01M50/491 , H01M50/489
摘要： An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C. for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.012 秒)
