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公开(公告)号：US20240162525A1
公开(公告)日：2024-05-16
申请号：US18422038
申请日：2024-01-25
发明人： Jiantao HUANG , Xin SUN , Huanji LIU , Xiao CHEN , Haizu JIN
IPC分类号： H01M10/654 , H01M50/209 , H01M50/48 , H01M50/494
CPC分类号： H01M10/654 , H01M50/209 , H01M50/48 , H01M50/494 , H01M2220/20
摘要： An electrode assembly, a secondary battery, a battery pack, and an electrical apparatus. In the electrode assembly, there are several electrode plate portions sequentially arranged in a laminated manner along its own thickness direction. During structural design, the current collector in at least one of the electrode plate portions is configured as a barrier, and by controlling the ratio between the thermal conductivity λ0 of the barrier and the thickness d0 of the barrier to be less than 3×107 W/(K*m2), the heat flux density of the barrier along the thickness direction of the electrode assembly is reduced and the thermal resistance is increased, thus forming an effective thermal barrier in the thickness direction of the electrode assembly.
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公开(公告)号：US11952475B2
公开(公告)日：2024-04-09
申请号：US16645530
申请日：2018-09-12
申请人： Celgard, LLC
IPC分类号： C08J9/42 , H01G9/02 , H01G11/52 , H01M8/0239 , H01M10/052 , H01M50/414 , H01M50/489 , H01M50/491 , H01M50/494 , H01M50/497
CPC分类号： C08J9/42 , H01M8/0239 , H01M10/052 , H01M50/414 , H01M50/489 , H01M50/491 , H01M50/494 , H01M50/497 , C08J2323/06 , C08J2323/12 , H01G9/02 , H01G11/52
摘要： A novel or improved base film for impregnation, impregnated base film, product incorporating the impregnated base film, and/or related methods as shown, claimed or described herein.
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公开(公告)号：US11936067B2
公开(公告)日：2024-03-19
申请号：US17418542
申请日：2019-12-13
申请人： KURARAY CO., LTD.
IPC分类号： H01M50/446 , H01M50/406 , H01M50/409 , H01M50/414 , H01M50/44 , H01M50/489 , H01M50/494
CPC分类号： H01M50/446 , H01M50/406 , H01M50/409 , H01M50/414 , H01M50/44 , H01M50/489 , H01M50/494
摘要： An alkaline battery separator containing an alkali resistant fiber and a binder, wherein the alkaline battery separator has two surfaces which are a surface A that is smoother comparing with the other surface and has an arithmetic mean surface roughness Ra (A), and a surface B that is rougher and has an arithmetic mean surface roughness Ra (B), the amount of the binder is 5 to 20% by mass based on the total mass of the separator, a value obtained by dividing the arithmetic mean surface roughness Ra (A) by the arithmetic mean surface roughness Ra (B) [Ra (A)/Ra (B)] is 0.700 or more and 0.980 or less, and the arithmetic mean surface roughness Ra (B) of the surface B is 3.0 μm or more and 10 μm or less.
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公开(公告)号：US20240063507A1
公开(公告)日：2024-02-22
申请号：US18271508
申请日：2022-02-03
发明人： Kenta MORIMOTO , Kentaro OGAWA , Masahiro KUROIWA
IPC分类号： H01M50/44 , H01M10/0525 , H01M50/497 , H01M50/491 , H01M50/494
CPC分类号： H01M50/44 , H01M10/0525 , H01M50/497 , H01M50/491 , H01M50/494
摘要： A support body included in the solid electrolyte layer of the lithium ion secondary battery is constituted by a non-woven fabric having an air permeability in a range of 1 to 50 L/cm2/min, a thickness in a range of 5 to 30 μm, and a density in a range of 0.15 to 0.45 g/cm3.
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公开(公告)号：US20230395943A1
公开(公告)日：2023-12-07
申请号：US18366988
申请日：2023-08-08
发明人： Xiao CHEN
IPC分类号： H01M50/494 , H01M50/457 , H01M50/474 , H01M10/0587 , H01M50/105
CPC分类号： H01M50/494 , H01M50/457 , H01M50/474 , H01M10/0587 , H01M50/105 , H01M2220/30
摘要： An electrochemical device including a housing, an electrode assembly, and a first bonding piece. The electrode assembly is located in the housing. The first bonding piece bonds the housing and the electrode assembly together. A bonding strength between the first bonding piece and the housing is F1, and a bonding strength between the first bonding piece and the electrode assembly is F2, 5%≤F1/F2≤70%, and 15 N/m≤F1≤500 N/m.
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公开(公告)号：US11777133B2
公开(公告)日：2023-10-03
申请号：US17204740
申请日：2021-03-17
发明人： Wei Cui , Xinghua Tao , Cong Cheng
IPC分类号： H01M50/411 , H01M10/0525 , H01M50/446 , H01M50/414 , H01M50/423 , H01M50/417 , H01M50/42 , H01M50/426 , H01M50/429 , H01M50/451 , H01M50/494 , H01M50/489 , H01M50/457
CPC分类号： H01M10/0525 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/423 , H01M50/426 , H01M50/429 , H01M50/446 , H01M50/451 , H01M50/457 , H01M50/489 , H01M50/494
摘要： A separator includes: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device.
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7.发明公开公开(公告)号：US20230307790A1
公开(公告)日：2023-09-28
申请号：US18318744
申请日：2023-05-17
发明人： Haiyi Hong , Jianrui Yang , Yuanyuan Lan , Cong Cheng , Na Liu , Haizu Jin
IPC分类号： H01M50/446 , H01M50/494 , H01M50/403 , H01M50/426
CPC分类号： H01M50/446 , H01M50/494 , H01M50/403 , H01M50/426 , H01M2220/20
摘要： A separator, comprising a substrate and a coating provided on at least one surface of the substrate are provided. In some embodiments, the coating comprises inorganic particles and organic particles, the organic particles comprise first organic particles and second organic particles both embedded in the inorganic particles and forming protrusions on the surface of the coating; the first organic particles are secondary particles, and the number of the first organic particles in the coating is denoted as A; the second organic particles are primary particles and the number of the second organic particles in the coating is denoted as B; with the separator satisfying: 0.05≤A/B
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公开(公告)号：US20230261324A1
公开(公告)日：2023-08-17
申请号：US18015274
申请日：2021-07-09
IPC分类号： H01M50/466 , H01M10/0525 , H01M50/507 , H01M10/0583 , H01M50/494 , H01M4/133 , H01M10/44 , H01M10/42
CPC分类号： H01M50/466 , H01M4/133 , H01M10/44 , H01M10/0525 , H01M10/0583 , H01M10/4235 , H01M50/494 , H01M50/507
摘要： The present disclosure includes systems, devices, and methods for operating a battery. The battery includes a power unit having a first electrode coupled to a first current collector and a second electrode. The first current collector is coupled to a first conductive member. The battery further includes a separator having a first portion interposed between the first electrode and the second electrode and a second portion positioned between the second electrode and the first conductive member. In some aspects, the second portion of the separator is configured to break responsive to receipt of a force to the battery to discharge the power unit safely without thermal runaway and catastrophic damage.
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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：US20240222710A1
公开(公告)日：2024-07-04
申请号：US18289182
申请日：2022-05-09
申请人： LG Chem, Ltd.
发明人： Sung-Jae Han , Joo-Sung Lee , Sung Cik Mun
IPC分类号： H01M10/42 , H01M10/052 , H01M50/403 , H01M50/417 , H01M50/426 , H01M50/446 , H01M50/494
CPC分类号： H01M10/4235 , H01M10/052 , H01M50/403 , H01M50/417 , H01M50/426 , H01M50/446 , H01M50/494
摘要： The present disclosure relates to a crosslinked structure-containing polyolefin porous support which includes a crosslinked structure including polymer chains interconnected directly with one another, has a shutdown temperature of 145° C. or less, causes no rupture after being exposed at 180° C. for 1 minute, and shows a ratio of the puncture strength after being exposed at 180° C. for 1 minute based on the puncture strength at 25° C. of 50-100%. The present disclosure also relates to a crosslinked structure-containing separator for a lithium secondary battery including the crosslinked structure-containing polyolefin porous support, a method for manufacturing the same, and a lithium secondary battery including the same.
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