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公开(公告)号：US20220359874A1
公开(公告)日：2022-11-10
申请号：US17863295
申请日：2022-07-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Abstract: This application provides a mixed positive electrode material, a positive electrode plate and a preparation method thereof, a battery, and an apparatus. The mixed positive electrode material includes a mixed component consisting of a material of lithium iron phosphate chemical system and a material of ternary chemical system, where the material of lithium iron phosphate chemical system is secondary particles with an average specific surface area within 10 m2/g. In the mixed positive electrode material of this application, the introduction of lithium iron phosphate secondary particles having a low specific surface area improves ease of processing of the mixed positive electrode material, making a slurry less prone to agglomeration and the two materials highly miscible. When the positive electrode plate is prepared by using the mixed positive electrode material of this application, uniform distribution of the positive electrode material on the positive electrode plate can be effectively improved.
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公开(公告)号：US20240372076A1
公开(公告)日：2024-11-07
申请号：US18776053
申请日：2024-07-17
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu XU , Yao JIANG , Qian LIU , Yonghuang YE
Abstract: This application provides a mixed positive electrode active material and a preparation method thereof, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The positive electrode active material includes a first positive electrode active material and a second positive electrode active material, where the first positive electrode active material includes a compound LiNibCodMneMfO2, and the second positive electrode active material includes a compound LiaAxMn1-yByP1-zC2O4-nDn. In this application, with the first positive electrode active material and the second positive electrode active material mixed, the cycling capacity retention rate of the secondary battery is improved, the cycle life of the secondary battery is extended, and the safety of the secondary battery is improved.
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公开(公告)号：US20230318073A1
公开(公告)日：2023-10-05
申请号：US18328719
申请日：2023-06-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qian LIU , Yonghuang YE , Haizu JIN , Quanguo LI , Xiaofu XU , Jianfu HE
IPC: H01M10/647 , H01M50/209 , H01M50/51
CPC classification number: H01M10/647 , H01M50/209 , H01M50/51
Abstract: A battery module includes one or more first battery cells and one or more second battery cells. A first number a of the one or more first battery cells is greater than or equal to a second number b of the one or more second battery cells. A first product X1 of a first volumetric energy density E1 and a first thickness T1 of each of the one or more first battery cells and a second product X2 of a second volumetric energy density E2 and a second thickness T2 of each of the one or more second battery cells satisfy. 0.35≤X1/X2≤18.
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公开(公告)号：US20230231390A1
公开(公告)日：2023-07-20
申请号：US18125143
申请日：2023-03-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu XU , Yonghuang YE , Xinyu ZHANG , Jianfu PAN , Qian LIU , Quanguo LI
CPC classification number: H02J7/0016 , H01M4/525 , H01M10/446 , H01M50/51 , H01M4/131 , H02J7/0048
Abstract: A battery unit may comprise a first cell type and a second cell type electrically connected at least in series, wherein the first cell type may include N first cells, the second cell type may include M second cells, and N and M are positive integers; the first cell may have a discharge cell balance rate of CB1, the second cell may have a discharge cell balance rate of CB2, with 0.5≤CB1≤CB2≤1.4, and when the battery unit is charged to 95%-100% of the state of charge, the first cell may have a corresponding open-circuit voltage change rate of not greater than 0.005 V/% SOC, and the second cell type may have a corresponding open-circuit voltage change rate greater than that of the first cell.
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5.发明申请公开(公告)号：US20230076751A1
公开(公告)日：2023-03-09
申请号：US17985851
申请日：2022-11-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu XU , Yonghuang YE , Haizu JIN , Chengdu LIANG , Wenwei CHEN , Quanguo LI
IPC: H01M10/617 , H01M10/647 , H01M10/6556 , H01M10/04
Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.
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Patent Agency Ranking
公开(公告)号：US20240204172A1
公开(公告)日：2024-06-20
申请号：US18590277
申请日：2024-02-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jianfu PAN , Xiaofu XU , Xinyu ZHANG , Yibo SHANG , Qian LIU
CPC classification number: H01M4/364 , H01M4/131 , H01M4/136 , H01M4/366 , H01M4/525 , H01M4/5825 , H01M4/624 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode active material includes a low-to-medium nickel ternary material and a high-lattice-volume-change positive electrode material. The low-to-medium nickel ternary material has a mass ratio W1≥45% in the positive electrode active material. The high-lattice-volume-change positive electrode material satisfies: the thickness change rate of the positive electrode active substance layer is ≥2.6%, and the thickness change rate is (H1−H2)/H1, where H1 is the fully discharged thickness of the positive electrode active substance layer, and H2 is the fully charged thickness of the positive electrode active substance layer.
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公开(公告)号：US20230307927A1
公开(公告)日：2023-09-28
申请号：US18324879
申请日：2023-05-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quanguo LI , Qian LIU , Yonghuang YE , Haizu JIN , Fajun HUANG , Xiaofu XU , Jun PENG
IPC: H02J7/00 , H01M10/42 , G01R31/382 , G01R31/367 , G01R31/36
CPC classification number: H02J7/0019 , H01M10/4207 , G01R31/382 , G01R31/367 , G01R31/3648 , H01M10/425 , H01M2010/4271
Abstract: A control method of a battery apparatus includes acquiring a state parameter of a first battery module of the battery apparatus, controlling the first battery module and a charging device to form a first charging loop in response to the state parameter of the first battery module being less than a preset threshold, and controlling the first battery module, a second battery module of the battery apparatus, and the charging device to be connected in series to form a second charging loop in response to the state parameter of the first battery module being greater than or equal to the preset threshold. A charging rate of the first charging loop is higher than a charging rate of the second charging loop.
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公开(公告)号：US20230061760A1
公开(公告)日：2023-03-02
申请号：US18053493
申请日：2022-11-08
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quanguo LI , Yonghuang YE , Chengdu LIANG , Haizu JIN , Qian LIU , Xia HU , Xiaofu XU
IPC: H01M10/658 , H01M50/375
Abstract: This application provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell, a second battery cell, and a first thermal insulation member. The second battery cell is disposed adjacent to the first battery cell, an energy density of the second battery cell is less than that of the first battery cell, and the first thermal insulation member is disposed between the first battery cell and the second battery cell.
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公开(公告)号：US20220393291A1
公开(公告)日：2022-12-08
申请号：US17887644
申请日：2022-08-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu XU , Yonghuang YE , Qian LIU , Haizu JIN , Chengdu LIANG
IPC: H01M50/267 , H01M50/209 , H01M50/51 , H01M4/583 , H01M10/04
Abstract: The present application relates to a battery module, including a first-type battery cell and a second-type battery cell electrically connected at least in series, the first-type battery cell and the second-type battery cell are battery cells of different chemical systems, the first-type battery cell includes N first battery cell(s), the second-type battery cell includes M second battery cell(s); the first battery cell includes a first negative electrode plate, the second battery cell includes a second negative electrode plate, a ratio of a conductivity of an electrolyte solution (25° C.) of the first battery cell to a coating mass per unit area of the first negative electrode plate is denoted as Ml, and a ratio of a conductivity of an electrolyte solution (25° C.) of the second battery cell to a coating mass per unit area of the second negative electrode plate is denoted as M2, M1>M2, and 0.08≤M1≤11, 0.03≤M2≤4.62.
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10.发明申请公开(公告)号：US20230071423A1
公开(公告)日：2023-03-09
申请号：US17988242
申请日：2022-11-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu XU , Yonghuang YE , Haizu JIN , Chengdu LIANG , Qian LIU , Xia HU
IPC: H01M50/242 , H01M50/209 , H01M50/291 , H01M50/103 , H01M10/613 , H01M10/6556
Abstract: A battery includes a plurality of battery cells and a support member configured to support the plurality of battery cells. The support member includes a recess. One battery cell of the battery cells extends into and is supported in the recess.
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