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公开(公告)号：EP4131623A1
公开(公告)日：2023-02-08
申请号：EP21783718.6
申请日：2021-04-06
发明人： KIM, Ji-Eun , LEE, Sang-Young , JEONG, So-Mi , SEO, Ji-Young , LEE, Yong-Hyeok , LEE, Je-An
IPC分类号： H01M50/449 , H01M50/446 , H01M10/0525
摘要： The present disclosure relates to a separator for an electrochemical device provided with a porous coating layer including multiple types of binder resins, and a method for manufacturing the same. The separator shows high adhesion between an electrode and the separator, even when any separate adhesive layer is not disposed on the surface of the separator. In addition, the separator shows higher adhesion to an electrode, as compared to a separator using a fluorinated binder resin, such as polyvinylidene fluoride, used conventionally in the art. Therefore, when introducing the separator to a battery, it is possible to manufacture an electrode assembly under a mild temperature and pressure condition, to improve the productivity of assemblage, to reduce defect generation, and thus to increase the yield. In addition, since the separator has no separate adhesive layer, it is possible to provide low interfacial resistance between the separator and an electrode. Further, the separator shows high affinity to an electrolyte, as compared to a semi-crystalline polymer, such as a fluorinated binder resin, and thus improves the output characteristics of a battery.
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公开(公告)号：EP4135113A1
公开(公告)日：2023-02-15
申请号：EP21789255.3
申请日：2021-04-14
发明人： KIM, Ji-Eun , SUNG, Dong-Wook , LEE, Sang-Young , SEO, Ji-Young , LEE, Yong-Hyeok , LEE, Je-An
IPC分类号： H01M50/449 , H01M50/446 , H01M10/052
摘要： The present disclosure relates to a separator for an electrochemical device provided with a porous coating layer including multiple types of binder resins, and a method for manufacturing the same. The separator shows high adhesion between an electrode and the separator, even when any separate adhesive layer is not disposed on the surface of the separator. In addition, the separator shows higher adhesion to an electrode, as compared to a separator using a fluorinated binder resin, such as polyvinylidene fluoride, used conventionally in the art. Therefore, when introducing the separator to a battery, it is possible to manufacture an electrode assembly under a mild temperature and pressure condition, to improve the productivity of assemblage, to reduce defect generation, and thus to increase the yield. In addition, since the separator has no separate adhesive layer, it is possible to realize low interfacial resistance between the separator and an electrode. Further, the separator shows high affinity to an electrolyte, as compared to a semi-crystalline polymer, such as a fluorinated binder resin, and thus improves the output characteristics of a battery.
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公开(公告)号：EP4102637A1
公开(公告)日：2022-12-14
申请号：EP21759745.9
申请日：2021-02-26
发明人： KA, Kyung-Ryun , SHIN, Jin-Young , LEE, Sang-Joon , LEE, Je-An
IPC分类号： H01M50/446 , H01M50/449 , H01M50/403 , H01M10/052
摘要： Disclosed is a separator for a lithium secondary battery. Particularly, the separator for a lithium secondary battery is provided with a porous coating layer including small-particle diameter inorganic particles, large-particle diameter inorganic particles and adhesive polymer particles, wherein the porous coating layer has a predetermined level of porosity. The separator shows reinforced heat resistance, reduced resistance and improved peel strength to a porous polymer substrate.
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公开(公告)号：EP4391099A1
公开(公告)日：2024-06-26
申请号：EP23785028.4
申请日：2023-04-06
发明人： KIM, Ki-Deok , KANG, Dae-Ho , PARK, Sang-Hyun , LEE, Je-An
摘要： There is provided a slurry filtering device with improved slurry filtering efficiency.
The slurry filtering device according to an embodiment of the present disclosure includes a housing including a slurry accommodation portion inside to which a slurry is supplied, a plurality of filters received respectively in a plurality of divided spaces of the slurry accommodation portion and configured to filter at least some of particles in the slurry, and a slurry transport line connecting the plurality of divided spaces to supply the slurry to each divided space in a sequential order.-
公开(公告)号：EP4170806A1
公开(公告)日：2023-04-26
申请号：EP21883211.1
申请日：2021-10-19
发明人： HAN, Da-Kyung , LEE, Sang-Young , SEO, Ji-Young , LEE, Yong-Hyeok , LEE, Je-An , JEONG, So-Mi
IPC分类号： H01M50/431 , H01M50/446 , H01M50/449 , H01M10/058 , H01M10/052
摘要： The present disclosure relates to a separator including: a porous polymer substrate; a porous coating layer formed on at least one surface of the porous polymer substrate, and including a plurality of inorganic particles and a first binder polymer disposed totally or partially on the surfaces of the inorganic particles so that the inorganic particles may be interconnected and fixed; and a conductive coating layer formed on one surface of the porous coating layer and including single-walled carbon nanotubes (SWCNTs) and a second binder polymer.
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6.发明公开
公开(公告)号：EP4138202A1
公开(公告)日：2023-02-22
申请号：EP21843543.6
申请日：2021-07-13
发明人： KA, Kyung-Ryun , KWON, Hye-Jin , LEE, Seung-Hyun , LEE, Je-An
IPC分类号： H01M50/449 , H01M50/46 , H01M50/446 , H01M50/403
摘要： The present disclosure relates to a separator for a secondary battery, including: a porous polymer substrate; a porous coating layer formed on at least one surface of the porous polymer substrate, and including a plurality of inorganic particles and a first binder polymer for interconnecting and fixing the inorganic particles; and an adhesive layer formed on the top surface of the porous coating layer and including a second binder polymer, wherein the adhesive layer includes a first layer that is in contact with the top surface of the porous coating layer, and a second layer integrated with the first layer and facing an electrode, and the second layer has an average pore size larger than the average pore size of the first layer.
The separator for a secondary battery can improve the problem related with resistance, while ensuring adhesion to an electrode.-
公开(公告)号：EP4191778A1
公开(公告)日：2023-06-07
申请号：EP21854412.0
申请日：2021-08-06
发明人： KWON, Hye-Jin , KA, Kyung-Ryun , LEE, Seung-Hyun , LEE, Je-An
IPC分类号： H01M50/449 , H01M50/46 , H01M50/446 , H01M50/403 , H01M10/058 , H01M10/052
摘要： Disclosed is a separator for a secondary battery, including: a porous polymer substrate having a plurality of pores; and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a plurality of inorganic particles and a urethane bond-containing crosslinked polymer, wherein the urethane bond-containing crosslinked polymer is disposed partially or totally on the surfaces of the inorganic particles so that the inorganic particles may be interconnected and fixed, and the urethane bond-containing crosslinked polymer has a glass transition temperature (Tg) of-15 to 32°C. A secondary battery including the separator is also disclosed.
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公开(公告)号：EP4152509A1
公开(公告)日：2023-03-22
申请号：EP21845906.3
申请日：2021-07-15
发明人： KA, Kyung-Ryun , KWON, Hye-Jin , LEE, Seung-Hyun , LEE, Je-An
IPC分类号： H01M50/449 , H01M50/46 , H01M50/446 , H01M50/403 , H01M10/052 , H01M10/058
摘要： The present disclosure relates to a separator for a secondary battery comprising a porous polymer substrate; a first layer formed on at least one surface of the porous polymer substrate, and comprising inorganic particles and a nonparticulate acrylic polymer having a glass transition temperature of 15°C or less, wherein the nonparticulate acrylic polymer connects and fixes the inorganic particles; and a second layer formed on a surface of the first layer, and comprising a particulate polymer having a glass transition temperature of 20°C to 50°C.
The separator for a secondary battery according to the present disclosure has good adhesion with electrode and can solve the resistance problem in the presence of the inorganic particles.
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