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公开(公告)号：EP4376137A1
公开(公告)日：2024-05-29
申请号：EP22884106.0
申请日：2022-10-21
发明人： PARK, Jong-Sik , LEE, Kwan-Hee , LEE, Myung-An
IPC分类号： H01M10/04 , H01M10/0587 , H01M50/449 , H01M50/446
CPC分类号： Y02P70/50 , Y02E60/10 , H01M10/0587 , H01M4/13 , H01M50/446 , H01M10/0525 , H01M50/188 , H01M10/04 , H01M50/179 , H01M4/139 , H01M50/152 , H01M50/107 , H01M50/449
摘要： Disclosed is an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound, and the first electrode includes an insulation layer that covers a boundary of the uncoated portion and the coated portion along the winding direction. The uncoated portion of the first electrode includes a plurality of segments separated from each other by cutting lines repeatedly formed along the winding direction. The plurality of segments are bent along a radial direction of the electrode assembly to form a bent surface. When a line passing through a point corresponding to the smallest height in the region of the uncoated portion of the first electrode is a datum line and a segment with the smallest height among the segments forming the bent surface is a minimum segment, a separation distance between one end in the winding axis direction of the separator and the datum line is 30% or less of the height of the minimum segment.
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公开(公告)号：EP4372895A1
公开(公告)日：2024-05-22
申请号：EP22842216.8
申请日：2022-07-15
申请人： Teijin Limited
发明人： KURATANI, Rika , MIURA, Mai , NISHIKAWA, Satoshi
IPC分类号： H01M50/451 , B32B5/32 , B32B27/20 , B32B27/30 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC分类号： Y02E60/10 , B32B5/32 , B32B27/30 , B32B27/20 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/426 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that contains a polyvinylidene fluoride type resin and a filler, in which a Gurley value of the separator is from 50 sec/100mL to 200 sec/100mL, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.
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公开(公告)号：EP4372894A1
公开(公告)日：2024-05-22
申请号：EP22842215.0
申请日：2022-07-15
申请人： Teijin Limited
发明人： KURATANI, Rika , MIURA, Mai , NISHIKAWA, Satoshi
IPC分类号： H01M50/451 , B32B5/32 , B32B27/20 , B32B27/30 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/426 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC分类号： Y02E60/10 , B32B5/32 , B32B27/30 , B32B27/20 , C08F14/22 , C08K3/10 , C08K3/22 , C08K3/30 , C08L27/16 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/451 , H01M50/426 , H01M50/489
摘要： Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin and a filler, in which the porous substrate contains a fluorine atom, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.
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公开(公告)号：EP4369504A1
公开(公告)日：2024-05-15
申请号：EP23756508.0
申请日：2023-01-03
发明人： KIM, Kyoung-Ho , LEE, Ji-Su
IPC分类号： H01M50/434 , H01M50/449 , H01M50/426 , H01M50/44 , H01M10/052
CPC分类号： Y02E60/10 , H01M10/052 , H01M50/434 , H01M50/446 , H01M50/403 , H01M50/494 , H01M50/426 , H01M50/449 , H01M50/44
摘要： The present disclosure provides a porous composite ceramic separator comprising a porous ceramic separator substrate comprising inorganic particles and a binder polymer to bind and interconnect the inorganic particles one another; and a coating layer coated on at least one surface of the porous ceramic separator, and comprising a mixture of binder polymer particles and staple fibers.
The porous composite ceramic separator of the present disclosure has high thermal safety by the use of the porous ceramic separator substrate, can prevent tensile strength decline and shows good resistance characteristics and assembly characteristics into an electrochemical device.-
公开(公告)号：EP4283699A3
公开(公告)日：2024-05-15
申请号：EP23202544.5
申请日：2016-07-11
IPC分类号： H01M4/04
CPC分类号： H01M4/0407 , H01M10/052 , H01M10/0587 , H01M10/4235 , H01M4/661 , H01M10/058 , H01M2220/2020130101 , H01M2220/3020130101 , Y02E60/10 , H01M50/446 , H01M50/46 , H01M50/403 , H01M50/449 , Y02P70/50 , H01M50/451 , H01M50/414 , H01M50/434 , H01M50/489 , H01M50/431
摘要： Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
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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.
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公开(公告)号：EP4362200A1
公开(公告)日：2024-05-01
申请号：EP22911622.3
申请日：2022-11-14
发明人： YOON, Yeo Ju , KIM, Min Ji , KIM, Ji Eun , SUNG, Dong Wook , SHIN, Jin Young
IPC分类号： H01M50/446 , H01M50/449 , H01M50/403 , H01M10/052 , H01G11/52
CPC分类号： Y02E60/10 , H01M10/052 , H01M50/446 , H01M50/403 , H01M50/449 , H01G11/52
摘要： Proposed is a separator for an electrochemical device, and an electrochemical device including the same. The separator according to an exemplary embodiment of the present disclosure is a separator for an electrochemical device. The separator includes a porous polymer substrate and at least one porous coating layer formed on at least one surface of the porous polymer substrate. The porous coating layer includes inorganic hydroxide particles, cellulose nanofibers, and an aqueous binder polymer. The content of the cellulose nanofibers is 25% by weight or more and 70% by weight or less based on the total weight of the porous coating layer.
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公开(公告)号：EP3832788B1
公开(公告)日：2024-05-01
申请号：EP21151643.0
申请日：2008-03-06
IPC分类号： H01M50/446 , H01M50/443 , 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
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公开(公告)号：EP4160804B1
公开(公告)日：2024-04-24
申请号：EP22190076.4
申请日：2022-08-11
IPC分类号： H01M50/403 , H01M10/0525 , H01M50/417 , H01M50/434 , H01M50/44 , H01M50/446 , H01M50/449
CPC分类号： Y02E60/10 , H01M50/403 , H01M50/417 , H01M50/44 , H01M50/446 , H01M50/449 , H01M50/434 , H01M10/0525
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80.发明公开
公开(公告)号：EP4443633A2
公开(公告)日：2024-10-09
申请号：EP24189446.8
申请日：2018-12-18
发明人： KIM, Myeong Soo , YOON, Su Jin
IPC分类号： H01M50/489
CPC分类号： H01M10/0525 , Y02E60/10 , H01M50/403 , H01M50/461 , H01M50/446 , H01M50/417 , H01M50/457 , H01M50/489
摘要： Disclosed herein is a separator for secondary batteries, the separator including a separator substrate made of a polymer resin having a porous structure, a first coating layer coated on the separator substrate, the first coating layer including a first inorganic material and a first binder, and a second coating layer coated on the first coating layer, the second coating layer including a second inorganic material and a second binder, wherein the first coating layer further includes a third binder having a glass transition temperature Tg lower than 30°C and the second coating layer further includes a fourth binder having a glass transition temperature of 30°C or higher.
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