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公开(公告)号：US20240339702A1
公开(公告)日：2024-10-10
申请号：US18628755
申请日：2024-04-07
发明人： Nok Jung Song , Hee Sik Han , Huihun Kim , Ji Min Lee , Han Chul Park , Doohee Lee , Geon Ryong Kim , Sung Chul Shin , Moonkyu Song
IPC分类号： H01M50/136 , H01M50/105 , H01M50/119 , H01M50/121 , H01M50/129
CPC分类号： H01M50/136 , H01M50/105 , H01M50/119 , H01M50/121 , H01M50/129
摘要： The present disclosure is directed to a film for a cell pouch and a manufacturing method thereof. A cell pouch film and a manufacturing method thereof according to an example embodiment of the present disclosure has good mechanical strength, low deviation in mechanical strength due to low stress on the film, and good formability.
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公开(公告)号：US20240222756A1
公开(公告)日：2024-07-04
申请号：US18398938
申请日：2023-12-28
发明人： Nok Jung Song , Hee Sik Han , Jee Eun Jang , Doohee Lee , Geon Ryong Kim , Yoohan Kim
IPC分类号： H01M50/198 , H01M50/105 , H01M50/124
CPC分类号： H01M50/198 , H01M50/105 , H01M50/124
摘要： Disclosed is a cell pouch film, comprising at least an outer layer, a barrier layer, and a sealant layer structured in that order, wherein the sealant layer is formed by extrusion on the barrier layer, wherein the sealant layer has a glass transition temperature (Tg) of −10° C. to −7° C., and wherein a crystallinity of the sealant layer is 28% to 32%, a preparation method thereof, a secondary battery using the cell pouch film, and a manufacturing method for the secondary battery. The sealing strength of the pouch film may be maintained or increased at high temperatures, thereby providing excellent high-temperature stability, which prevents electrolyte leakage during battery use in high-temperature environments and ensures battery safety with fewer defects.
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公开(公告)号：US20240222749A1
公开(公告)日：2024-07-04
申请号：US18397945
申请日：2023-12-27
发明人： Nok Jung Song , Hee Sik Han , Jee Eun Jang , Huihun Kim
IPC分类号： H01M50/131 , H01M10/04 , H01M50/105 , H01M50/129
CPC分类号： H01M50/131 , H01M10/049 , H01M50/105 , H01M50/129 , H01M2220/10 , H01M2220/20
摘要： A pouch film for a secondary battery, wherein at least an outer layer, a barrier layer, and a sealant layer are structured in this order, the sealant layer includes an extrusion (EC) layer and a polypropylene (PP) layer below the extrusion (EC) layer, having excellent sealing strength at ambient and high temperatures, and having excellent sealing strength maintenance properties at ambient and especially high temperatures, a method for preparing the pouch film, a secondary battery using the pouch film, and a method for manufacturing the same are disclosed. The pouch film for the secondary battery has excellent high temperature long-term reliability in battery pack manufacturing, and can be useful for medium to large-sized batteries.
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4.发明申请METHOD FOR SYNTHESIZING HYDROCARBON ELECTROLYTES POLYMER AND POLYMERIZATION SOLVENT USED THEREIN 审中-公开合成碳氢化合物聚合物的方法及其所用的聚合溶剂公开(公告)号：US20150340735A1
公开(公告)日：2015-11-26
申请号：US14718170
申请日：2015-05-21
发明人： Hyoung-Juhn KIM , Jong Hyub PARK , Jin Ho KIM , So Young LEE
IPC分类号： H01M10/0565 , C08G75/20
CPC分类号： H01M10/0565 , C08G75/20 , C08G75/23
摘要： As a polymerization solvent for use in the polymerization of monomers for a hydrocarbon-based electrolyte polymer, a mixed solvent containing a first solvent, such as dimethyl acetamide, N-methylpyrrolidone or dimethyl sulfoxide, and an alcohol as a second solvent is used instead of a dimethyl acetamide/toluene mixture or dimethyl acetamide alone according to the related art. By using the mixed solvent, it is possible to obtain a molecular weight of polymer equal to or higher than the molecular weight of polymer obtained from the method according to the related art, even when the reaction time is reduced. Therefore, the disclosed method and polymerization solvent is very useful for a mass production of a hydrocarbon-based electrolyte polymer.
摘要翻译： 作为用于烃系电解质聚合物的单体的聚合的聚合溶剂，可以使用含有第二溶剂如二甲基乙酰胺，N-甲基吡咯烷酮或二甲基亚砜的混合溶剂和作为第二溶剂的醇， 二甲基乙酰胺/甲苯混合物或二甲基乙酰胺单独根据现有技术。 通过使用混合溶剂，即使反应时间减少，也可以获得等于或高于由现有技术方法获得的聚合物的分子量的聚合物的分子量。 因此，所公开的方法和聚合溶剂对于大量生产烃类电解质聚合物是非常有用的。
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公开(公告)号：US20240339700A1
公开(公告)日：2024-10-10
申请号：US18628744
申请日：2024-04-07
发明人： Nok Jung Song , Hee Sik Han , Huihun Kim , Sung Chul Shin , Moonkyu Song
IPC分类号： H01M50/105 , H01M10/04 , H01M50/121 , H01M50/126 , H01M50/133 , H01M50/136
CPC分类号： H01M50/105 , H01M10/04 , H01M50/121 , H01M50/126 , H01M50/133 , H01M50/136
摘要： Disclosed are a cell pouch film having improved formability, a method for preparing the same, and a secondary battery using the same. The cell pouch film can suppress the occurrence of cracks in edge portion generated during deep molding, allowing the edge portion to be formed thickly, thereby exhibiting excellent deep molding properties. Since such a cell pouch film can improve the energy density of a secondary battery, it is particularly useful as a medium to large-sized cell pouch for electric vehicles, energy storage devices, and the like.
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公开(公告)号：US20240213589A1
公开(公告)日：2024-06-27
申请号：US18393340
申请日：2023-12-21
发明人： Nok Jung Song , Hee Sik Han , Jee Eun Jang
IPC分类号： H01M50/129 , H01M10/052 , H01M50/105 , H01M50/119 , H01M50/121 , H01M50/131
CPC分类号： H01M50/129 , H01M10/052 , H01M50/105 , H01M50/119 , H01M50/121 , H01M50/131
摘要： Disclosed is a cell pouch film and a method for preparing the same, secondary battery using the same, and a method for manufacturing the secondary battery, wherein the cell pouch film includes at least an outer layer, a barrier layer, and a sealant layer which is an inner layer, the outer layer comprises a PET film of 7 to 12 μm on an outer side and a nylon film of 20 to 30 μm in an inner side, the barrier layer has a thickness of 60 to 80 μm, and the inner layer has a thickness of 60 to 100 μm. The cell pouch film is excellent in insulation resistance properties while having high rigidity and high formability, and this is useful as a medium and large size, particularly next-generation cell pouch for electric vehicles.
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公开(公告)号：US11916241B2
公开(公告)日：2024-02-27
申请号：US17083637
申请日：2020-10-29
发明人： Nok Jung Song , Han Chul Park , Hee Sik Han , Ji Min Lee
IPC分类号： H01M50/183 , C08K5/00 , C08L23/12 , H01M4/04 , H01M50/124
CPC分类号： H01M50/183 , C08L23/12 , H01M4/0407 , H01M50/124 , C08K5/0025
摘要： Disclosed are a method for manufacturing a secondary battery pouch film having at least an outer layer, a metal layer, a primer layer, and a sealant layer, or at least an outer layer, a metal layer, a primer layer, a melt-extrusion resin layer, and a sealant layer in this order, the method including: a drying process of applying and heating a primer layer composition on the metal layer so as to dry the primer layer composition and cure at least a part of the primer layer composition. The organic solvent-based emulsion composition contains acid-modified polypropylene and a curing agent and has a curing start temperature of 150° C. or lower, preferably 135° C. to 150° C., and a drying process temperature of 150° C. or lower, preferably 135° C. to 150° C. The method is not subjected to a thermal lamination process when laminating sealant layer.
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公开(公告)号：US20190189984A1
公开(公告)日：2019-06-20
申请号：US16283312
申请日：2019-02-22
发明人： Hee Sik HAN , Kyung Chan KIM , Jong Hyub PARK
CPC分类号： H01M2/1288 , B32B15/00 , C08G63/183 , C08G69/00 , C08L77/02 , H01M2/022 , H01M2/0287 , H01M2/08 , H01M10/0422
摘要： Disclosed is a cell pouch having excellent formability, which includes a high elongation nylon film. When the high elongation nylon film is stretched in a machine direction (MD), an increment of a tensile strength value with respect to an increment of an elongation value (an increment of tensile strength/an increment of elongation) increasing from 6.7% to 100% is more than 0.04 and less than 0.05, and when the high elongation nylon film is stretched in a transverse direction (TD), an increment of a tensile strength value with respect to an increment of an elongation value increasing from 6.7% to 100% is more than 0.06 and less than 0.08.
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公开(公告)号：US20240145822A1
公开(公告)日：2024-05-02
申请号：US18386800
申请日：2023-11-03
发明人： Nok Jung Song , Hee Sik Han , Han Chul Park , Ji Min Lee , Geon Ryong Kim
IPC分类号： H01M50/105 , H01M50/121 , H01M50/133 , H01M50/134 , H01M50/136
CPC分类号： H01M50/105 , H01M50/121 , H01M50/133 , H01M50/134 , H01M50/136 , H01M2220/20
摘要： Disclosed is a secondary battery pouch film, including an outer layer, a metal layer, and a sealant layer, wherein the sealant layer includes a cast polypropylene (CPP) layer and an extruded polypropylene (PP) layer, and the secondary battery pouch film satisfies the [Equation 1] where A+B
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10.发明公开公开(公告)号：US20240079697A1
公开(公告)日：2024-03-07
申请号：US18387759
申请日：2023-11-07
发明人： Nok Jung Song , Han Chul Park , Hee Sik Han , Ji Min Lee
IPC分类号： H01M50/183 , C08L23/12 , H01M4/04 , H01M50/124
CPC分类号： H01M50/183 , C08L23/12 , H01M4/0407 , H01M50/124 , C08K5/0025
摘要： Disclosed are a method for manufacturing a secondary battery pouch film having at least an outer layer, a metal layer, a primer layer, and a sealant layer, or at least an outer layer, a metal layer, a primer layer, a melt-extrusion resin layer, and a sealant layer in this order, the method including: a drying process of applying and heating a primer layer composition on the metal layer so as to dry the primer layer composition and cure at least a part of the primer layer composition. The organic solvent-based emulsion composition contains acid-modified polypropylene and a curing agent and has a curing start temperature of 150° C. or lower, preferably 135° C. to 150° C., and a drying process temperature of 150° C. or lower, preferably 135° C. to 150° C. The method is not subjected to a thermal lamination process when laminating sealant layer.
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