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公开(公告)号：US12132226B2
公开(公告)日：2024-10-29
申请号：US18114164
申请日：2023-02-24
发明人： Yuanyuan Lan , Jianrui Yang , Haiyi Hong , Cong Cheng , Na Liu , Haizu Jin
IPC分类号： H01M50/446 , H01M50/417 , H01M50/426 , H01M50/449 , H01M50/494
CPC分类号： H01M50/446 , H01M50/417 , H01M50/426 , H01M50/449 , H01M50/494
摘要： This application relates to a separator, including a substrate and a coating layer provided on at least one surface of the substrate. The coating layer includes organic particles and inorganic particles, the organic particles include first-type organic particles, the inorganic particles form an inorganic particle layer, and the first-type organic particles are embedded into the inorganic particle layer and form bulges on a surface of the inorganic particle layer. A number-based median particle size of the first-type organic particles is ≥12 μm, and a ratio of an average height of the bulges to a thickness of the inorganic particle layer is ≥4. This application further relates to a separator preparation method, a secondary battery containing such separator, and a related battery module, battery pack, and apparatus.
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公开(公告)号：US20240356155A1
公开(公告)日：2024-10-24
申请号：US18592528
申请日：2024-03-01
发明人： Lei Li , Meihuang Chen , Yi Zheng , Haiyang Kang , Runhao Lai , Chengdong Sun
IPC分类号： H01M50/42 , H01M50/449
CPC分类号： H01M50/42 , H01M50/449
摘要： The present application relates to the technical field of secondary batteries, and more particularly relates to a binder for secondary batteries, a separator, a secondary battery and an electrical apparatus. The binder for secondary batteries is in a ring shape, and includes an acrylate copolymer. The acrylate copolymer has good adhesion, and a contact point of the binder with the ring-shaped structure is a circle line of the ring-shaped binder. The ring-shaped binder has bonding points with larger areas than a spherical binder, such that good bonding performance can be achieved when the usage amount of the binder with the ring-shaped structure is reduced.
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公开(公告)号：US12125979B2
公开(公告)日：2024-10-22
申请号：US17437778
申请日：2020-03-11
IPC分类号： H01M10/0565 , H01M4/134 , H01M10/0562 , H01M50/414 , H01M50/434 , H01M50/449 , H01M50/497
CPC分类号： H01M10/0565 , H01M4/134 , H01M10/0562 , H01M50/414 , H01M50/434 , H01M50/449 , H01M50/497 , H01M2300/0071 , H01M2300/008 , H01M2300/0082 , H01M2300/0094
摘要： A solid-state battery and process of forming the same is provided. The solid-state battery includes a first metal electrode. The solid-state battery includes a first mixed conductor disposed on the first metal electrode. The first mixed conductor includes a mixture of ionic and electronic conductors. The solid-state battery includes a pure ionic conductor disposed on the first mixed conductor. The solid-state battery includes a second metal electrode disposed on top of the pure ionic conductor.
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公开(公告)号：US12119515B2
公开(公告)日：2024-10-15
申请号：US18647536
申请日：2024-04-26
发明人： Kyung-Ryun Ka , Min-Ji Kim , Seung-Hyun Lee , Hye-Won Kim
IPC分类号： H01M50/446 , H01M10/052 , H01M50/42 , H01M50/426 , H01M50/449
CPC分类号： H01M50/446 , H01M10/052 , H01M50/42 , H01M50/426 , H01M50/449
摘要： Disclosed is a separator suitable for an electrochemical device a porous including polymer substrate and an organic/inorganic composite porous coating layer on at least one side of the porous polymer substrate. The organic/inorganic composite porous coating layer includes particulate binder polymers and first inorganic particles, the particulate binder polymers include (a) hybrid polymer particles of a fluorine-containing polymer and an acrylic-containing polymer and (b) acrylic-containing polymer particles, the average particle diameter D50 of the acrylic-containing polymer particles “a” is in a range of 1 μm to 7.5 μm, the average particle diameter D50 of the inorganic particles “b” is in a range of 200 nm to 800 nm, a/b is in a range of 2 to 15, and the average particle diameter D50 of the hybrid polymer particles is smaller than the average particle diameter D50 of the acrylic-containing polymer particles.
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公开(公告)号：US12110352B2
公开(公告)日：2024-10-08
申请号：US17311034
申请日：2019-12-02
IPC分类号： C08F214/22 , C08F2/22 , C08F2/38 , C08F214/18 , C08F214/28 , C08F220/06 , C08F220/20 , C08F222/20 , C08J3/12 , C08K3/36 , H01G11/30 , H01M50/403 , H01M50/426 , H01M50/446 , H01M50/449
CPC分类号： C08F214/22 , C08F2/22 , C08F2/38 , C08F214/28 , C08F220/06 , C08F220/20 , C08J3/12 , C08K3/36 , H01G11/30 , H01M50/403 , H01M50/426 , H01M50/446 , H01M50/449 , C08F2438/03 , C08F2810/40
摘要： The present invention pertains to an aqueous dispersion of a vinylidene fluoride polymer having a high molecular weight and possessing a substantially linear structure, leading to reduced amount of gels/insoluble fractions, to a method for its preparation and to its use for the manufacture of electrochemical cell components, such as electrodes and/or composite separators or for the manufacture of membranes.
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公开(公告)号：US20240329146A1
公开(公告)日：2024-10-03
申请号：US18580136
申请日：2022-07-13
申请人： Celgard, LLC
发明人： Zhengming Zhang , Wenbin Yin
IPC分类号： G01R31/389 , H01M10/0525 , H01M10/42 , H01M50/417 , H01M50/449 , H01M50/491
CPC分类号： G01R31/389 , H01M10/0525 , H01M10/4285 , H01M50/417 , H01M50/449 , H01M50/491
摘要： In one aspect, a method of measuring the internal short resistance of a battery separator comprising one or more layers of a polyolefin is provided. A method comprises applying a force via a force component comprising a ball to a test stack, the test stack comprising an anode, a separator, and a cathode, deforming the test stack until an electrical short occurs, and determining an ISR value for the separator, the value corresponding to an overall ISR, or at least in one of the MD, TD, or Z-direction.
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公开(公告)号：US12100861B2
公开(公告)日：2024-09-24
申请号：US17310716
申请日：2020-02-06
申请人： ZEON CORPORATION
发明人： Keiichiro Tanaka
IPC分类号： H01M50/446 , H01M50/411 , H01M50/443 , H01M50/449 , H01M50/409
CPC分类号： H01M50/446 , H01M50/411 , H01M50/443 , H01M50/449 , H01M50/409
摘要： Provided is a technique relating to a functional layer for an electrochemical device that has excellent process adhesiveness and heat resistance and enables good electrolyte solution injectability. The functional layer contains inorganic particles and a particulate polymer. In this functional layer, a proportion of area occupied by the inorganic particles per unit area of a surface of the functional layer in plan view of the surface of the functional layer is more than 90%, the particulate polymer has a volume-average particle diameter of not less than 1.0 μm and not more than 10.0 μm, and the volume-average particle diameter of the particulate polymer is larger than the thickness of an inorganic particle layer.
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公开(公告)号：US20240304950A1
公开(公告)日：2024-09-12
申请号：US18664432
申请日：2024-05-15
发明人： Chang Dae PARK , Jeong Rae KIM , Bom Yi LEE , Kyoung Won KIM , Byung Hyun KIM , Kyung Seok YOON
IPC分类号： H01M50/491 , H01M50/403 , H01M50/414 , H01M50/449
CPC分类号： H01M50/491 , H01M50/403 , H01M50/414 , H01M50/449
摘要： The present disclosure relates to a separator and a method of manufacturing the separator. The separator includes a porous support and a hydrophilic polymer applied to the surface of the porous support through a solution including the hydrophilic polymer and a solvent, and satisfies the following Equation: 0.015≤(C*D)/(A*B)≤0.65, where A is a thickness (μm) of the porous support, B is an air permeability (Gurley, seconds/100 ml) of the porous support, C is a porosity (% by volume) of the porous support, and D is a content (% by weight) of the hydrophilic polymer in the solution.
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9.发明公开公开(公告)号：US20240297407A1
公开(公告)日：2024-09-05
申请号：US18663073
申请日：2024-05-14
发明人： Yun Bong KIM , Kyu Young CHO , Tae Wook KWON , Heung Taek BAE
IPC分类号： H01M50/431 , H01M10/052 , H01M50/403 , H01M50/449
CPC分类号： H01M50/431 , H01M10/052 , H01M50/403 , H01M50/449
摘要： A separator, a method of manufacturing the separator, and an electrochemical device including the separator. The separator includes: a porous substrate; and an inorganic particle layer formed on at least one surface of the porous substrate, wherein a release rate of the inorganic particle layer is 70% or more when measured by immersing the separator in a water tank at room temperature and then subjecting the separator to sonication under conditions of a frequency of 40 kHz, an output of 1,000 W, and an application time of 60 seconds.
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公开(公告)号：US20240291101A1
公开(公告)日：2024-08-29
申请号：US18566213
申请日：2022-06-17
申请人： ZEON CORPORATION
发明人： Akihiko MIYAZAKI , Shiho MOSAKI
IPC分类号： H01M50/42 , C08J9/10 , C08L1/28 , H01M50/449
CPC分类号： H01M50/42 , C08J9/108 , C08L1/286 , H01M50/449 , C08J2301/28 , C08J2433/08
摘要： Provided is a slurry composition for a non-aqueous secondary battery functional layer that is capable of forming a functional layer that can inhibit heat generation in the event of an internal short circuit of a non-aqueous secondary battery and can also reduce internal resistance of the non-aqueous secondary battery. The slurry composition contains functional particles, an insoluble polymer, a soluble polymer, and a solvent. The functional particles include foaming agent particles. The content of the insoluble polymer is not less than 1 part by mass and not more than 10 parts by mass per 100 parts by mass of the functional particles, and the content of the soluble polymer is not less than 1 part by mass and not more than 10 parts by mass per 100 parts by mass of the functional particles. The soluble polymer has a thermal decomposition temperature of 130° C. or higher.
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