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公开(公告)号：US20240030437A1
公开(公告)日：2024-01-25
申请号：US18449921
申请日：2023-08-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Junguang CHEN , Cong CHENG , Haile PEI , Bingzi YANG , Xinghui WANG , Shengwu ZHANG
CPC classification number: H01M4/5825 , H01M4/525 , H01M4/505 , H01M4/622 , H01M4/625 , H01M4/0404 , H01M10/0525 , H01M2004/028
Abstract: This application provides a positive electrode slurry including a solid inclusion and water, where the solid inclusion includes a positive electrode active material capable of intercalating and deintercalating lithium ions and lithium-containing graphene.
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2.发明公开公开(公告)号：US20230361305A1
公开(公告)日：2023-11-09
申请号：US18324680
申请日：2023-05-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Cong CHENG , Haile PEI , Junguang CHEN , Shengwu ZHANG , Xinghui WANG , Shisong LI
IPC: H01M4/62 , H01M4/58 , H01M4/66 , H01M10/0525 , H01M4/136
CPC classification number: H01M4/622 , H01M4/136 , H01M4/5825 , H01M4/625 , H01M4/661 , H01M10/0525 , H01M2004/028
Abstract: The present application relates to an aqueous positive electrode sheet, including a current collector and a positive electrode active substance layer provided on at least one surface of the current collector, the positive electrode active substance layer including an aqueous binder, where bond strength AT between the positive electrode active substance layer and the current collector and cohesive CT of the positive electrode active substance layer itself satisfy the following relationship: 1≤CT/AT≤10. The present application further relates to a secondary battery including the aqueous positive electrode sheet, a battery pack including the secondary battery, and a power consumption apparatus including the battery pack.
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公开(公告)号：US20240339611A1
公开(公告)日：2024-10-10
申请号：US18540898
申请日：2023-12-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xinghui WANG , Huihui LIU , Wenmeng ZHANG , Shuhua CHEN
IPC: H01M4/583 , H01M4/02 , H01M4/04 , H01M4/1393 , H01M4/62
CPC classification number: H01M4/583 , H01M4/0404 , H01M4/043 , H01M4/1393 , H01M4/622 , H01M4/625 , H01M2004/027
Abstract: The present application provides a negative electrode plate, comprising a current collector and a negative electrode film layer, wherein the negative electrode film layer comprises a negative electrode active material, a copolymer formed by acrylonitrile and acrylic acid components, and a polyol. Optionally, the negative electrode film layer further comprises a polyether. The cross-linked polymer and polyether described in the present application can reduce the rebound rate of the negative electrode plate during cycling, thereby improving the capacity retention rate of the battery.
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4.发明公开公开(公告)号：US20240313224A1
公开(公告)日：2024-09-19
申请号：US18617506
申请日：2024-03-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Junguang CHEN , Cong CHENG , Haile PEI , Shengwu ZHANG , Xinghui WANG , Shisong LI
CPC classification number: H01M4/622 , H01M2004/021 , H01M2004/028
Abstract: An electrode assembly includes a water-based positive electrode plate and a negative electrode plate, wherein the water-based positive electrode plate includes a positive electrode current collector and a positive electrode film layer located on at least one surface of the positive electrode current collector; and the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector; at least part of surface of the water-based positive electrode plate is provided with a plurality of first micropores, and satisfies: 0.001%≤(S12×H12×D1)/(S11×C1×H11)≤1%, at least part of surface of the negative electrode plate is provided with a plurality of second micropores, and satisfies: 0
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公开(公告)号：US20240186510A1
公开(公告)日：2024-06-06
申请号：US18442435
申请日：2024-02-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Haile PEI , Cong CHENG , Junguang CHEN , Shengwu ZHANG , Xinghui WANG , Yanying WU
CPC classification number: H01M4/5825 , H01M4/0404 , H01M4/0471 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/622 , H01M10/052 , H01M2004/028
Abstract: A positive electrode active material composition, a water-based positive electrode slurry, a positive electrode plate, a secondary battery, and an electrical device are disclosed. The positive electrode active material composition includes a first positive electrode active material, a second positive electrode active material, and a third positive electrode active material, the first positive electrode active material has a volume average particle size Dv50 denoted as A1 in μm, with A1 satisfying 0.2≤A1≤0.8; the second positive electrode active material has a volume average particle size Dv50 denoted as A2 in μm, with A2 satisfying 1.0≤A2≤2.5; and the third positive electrode active material has a volume average particle size Dv50 denoted as A3 in μm, with A3 satisfying 3.0≤A3≤6.0. The positive electrode plate of the present application has both a higher compaction density and a lower water content.
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Patent Agency Ranking
公开(公告)号：US20240052244A1
公开(公告)日：2024-02-15
申请号：US18382648
申请日：2023-10-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Guopeng ZHUO , Yunpeng XU , Yanying WU , Xinghui WANG
CPC classification number: C09K23/52 , H01M4/0404 , H01M2004/028
Abstract: The present application provides a dispersant and a preparation method thereof, a slurry composition and a preparation method thereof, an electrode, and an apparatus containing the electrode plate. The dispersant includes a block copolymer having a first block and a second block, the first block includes a first repeating structural unit shown in Formula I) and a second repeating structural unit shown in Formula II), and the second block includes a third repeating structural unit shown in Formula III) and a fourth repeating structural unit shown in Formula IV), in which n is any integer from 1-25, R1 to R7 are independently selected from hydrogen, halogen, cyano, carbonyl, carboxy, nitro, sulfonyl, amide, ester, substituted or unsubstituted C1-C15 alkyl or alkoxy, and substituted or unsubstituted C6-C30 aryl and R8, R9, and R10 have a dipole moment of greater than 2×10−30 C·m.
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公开(公告)号：US20240030451A1
公开(公告)日：2024-01-25
申请号：US18479949
申请日：2023-10-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Wenmeng ZHANG , Huihui LIU , Xinghui WANG , Shuhua CHEN
IPC: H01M4/62
CPC classification number: H01M4/625 , H01M4/622 , H01M2004/027
Abstract: A modified binder includes a conductive carbon nanotube and a first grafting agent located on the conductive carbon nanotube. The first grafting agent includes a copolymer of acrylic-based monomer unit-acrylamide-based monomer unit and/or a copolymer of acrylic-based monomer unit-acrylonitrile-based monomer unit-acrylamide-based monomer unit.
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8.发明公开公开(公告)号：US20240356014A1
公开(公告)日：2024-10-24
申请号：US18760121
申请日：2024-07-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jingjing PU , Yanying WU , Xinghui WANG
IPC: H01M4/36 , H01M4/02 , H01M4/58 , H01M4/62 , H01M10/0525 , H01M50/209 , H01M50/249
CPC classification number: H01M4/366 , H01M4/5825 , H01M4/625 , H01M10/0525 , H01M50/209 , H01M50/249 , H01M2004/028 , H01M2220/20
Abstract: A positive electrode plate, a secondary battery, a battery module, a battery pack, and an electrical device are disclosed. The positive electrode plate includes a positive current collector, and a positive active material layer disposed on at least one surface of the positive current collector. The positive active material layer includes a first active material layer and a second active material layer that are sequentially stacked in a direction away from the surface. The first active material layer includes a first composite particle. The first composite particle includes a first lithium iron phosphate particle and a first carbon layer that coats a surface of the first lithium iron phosphate particle. The second active material layer includes a second composite particle. The second composite particle includes a second lithium iron phosphate particle and a second carbon layer that coats a surface of the second lithium iron phosphate particle.
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9.发明公开公开(公告)号：US20230411627A1
公开(公告)日：2023-12-21
申请号：US18337135
申请日：2023-06-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiting WEI , Ning WANG , Xinghui WANG , Shisong LI , Shengwu ZHANG , Sainan MU
IPC: H01M4/66
CPC classification number: H01M4/667 , H01M2004/027 , H01M4/662
Abstract: A surface treatment composition includes, expressed as parts by weight, a first ingredient of 1 to 30 parts and a second ingredient of 1 to 30 parts. The first ingredient is a polycaprolactone modified with an acidic group and/or a salt of the acidic group. The second ingredient is selected from polyether-modified polyolefin acid, polyether-modified polyalkenoate salt, polyether-modified polyalkenoate ester, or a combination thereof.
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公开(公告)号：US20190027712A1
公开(公告)日：2019-01-24
申请号：US16138534
申请日：2018-09-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zengbin WEI , Chengdong SUN , Dong DUAN , Xinghui WANG , Xiang LI
Abstract: The present disclosure provides a pouch-type secondary battery, which comprises an electrode assembly, a packaging film. The packaging film comprises a first receiving portion, a second receiving portion, a third receiving portion. The third receiving portion is parallel to the first receiving portion, a portion of the electrode tab extends out of the third receiving portion. A joint location between the second receiving portion and the first receiving portion and a joint location between the second receiving portion and the third receiving portion each are formed with a bending angle, the bending angles are equal and each range from 130° to 160°. Because the bending angles in the range are relatively large, when the packaging film is tightly pressed, there is no need to apply a too large pressure on the second receiving portion and the third receiving portion, so the electrode tab is not easily damaged or even ruptured.
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