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公开(公告)号：US20240178365A1
公开(公告)日：2024-05-30
申请号：US18420790
申请日：2024-01-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu Xu , Jianfu He , Chenxu Luo , Qian Liu , Yonghuang Ye , Yibo Shang
IPC: H01M4/131 , H01M4/485 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M4/02
CPC classification number: H01M4/131 , H01M4/485 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028
Abstract: Provided is a positive electrode plate, a secondary battery, and a powered device. The positive electrode plate may be a positive electrode plate of a wound cell, and includes a waist region provided close to a waist portion and an end region provided away from the waist portion. The waist region is provided with a first positive electrode film, and the end region is provided with a second positive electrode film. The positive electrode plate may be a positive electrode plate for a laminated cell, which includes a central region provided close to a center and an edge region provided away from the center. The central region is provided with a first positive electrode film, and the edge region is provided with a second positive electrode film.
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公开(公告)号：US11764436B2
公开(公告)日：2023-09-19
申请号：US17889422
申请日：2022-08-17
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Qian Liu , Chengdu Liang , Xiaofu Xu , Quanguo Li , Yonghuang Ye , Haizu Jin
IPC: H01M50/267 , H01M50/51 , H01M50/204 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/02
CPC classification number: H01M50/267 , H01M4/366 , H01M4/505 , H01M4/525 , H01M50/204 , H01M50/51 , H01M2004/028
Abstract: The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first and second type of battery cells are battery cells of different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, and N and M are positive integers; a positive electrode plate of the second battery cell contains two or more positive electrode active materials, and when a dynamic SOC of the second battery cell is in a range from 90% to 98%, a change rate ΔOCV/ΔSOC in an OCV relative to the SOC of the second battery cell satisfies 3≤ΔOCV/ΔSOC≤9, in mV/% SOC, where SOC represents a charge state and OCV represents an open circuit voltage.
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公开(公告)号：US20220416330A1
公开(公告)日：2022-12-29
申请号：US17892621
申请日：2022-08-22
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quanguo LI , Yonghuang YE , Chengdu LIANG , Haizu JIN , Qian LIU , Xiaofu Xu
IPC: H01M16/00 , H01M4/58 , H01M4/505 , H01M4/525 , H01M50/209 , H01M50/489
Abstract: The application relates to a battery module, a manufacturing method and a manufacturing device thereof, a battery pack and a power consumption apparatus. The battery module includes a first-type battery cell and a second-type battery cell having different chemical systems and being electrically connected at least in series, where under the conditions of 25° C. and 100% state of charge (SOC), specific power density P2 of the second-type battery cell is higher than specific power density P1 of the first-type battery cell. Satisfying: 0.04≤(r1/m)/(r2/n)≤14, where, r1 and r2 are resistances per unit area of a positive electrode plate of the first-type battery cell and a positive electrode plate of the second-type battery cell respectively, and m and n are numbers of laminations of the positive electrode plate of the first-type battery cell and the positive electrode plate of the second-type battery cell.
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公开(公告)号：US20240413316A1
公开(公告)日：2024-12-12
申请号：US18808102
申请日：2024-08-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yibo Shang , Xiaofu Xu , Jianfu Pan , Xinyu Zhang , Qian Liu
Abstract: Provided are a positive electrode material and a preparation method thereof, a composite positive electrode material, a positive electrode plate, and a secondary battery. The positive electrode material includes: a core, a first shell layer, and a second shell layer. The first shell layer wraps around a surface of the core. The second shell layer wraps around a surface of the first shell layer. The core includes a lithium manganese iron phosphate material. The first shell layer includes a polyanionic positive electrode material. The polyanionic positive electrode material contains no manganese. The second shell layer includes a hydrophobic conductive material. When ensuring a relatively high energy density of the lithium manganese iron phosphate material, the positive electrode material improves the electrical conductivity of the lithium manganese iron phosphate material, alleviates the problem of hygroscopicity, and reduces manganese dissolution during cycling.
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5.发明授权公开(公告)号：US12087957B2
公开(公告)日：2024-09-10
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 , H01M10/613 , H01M10/6556 , H01M50/103 , H01M50/209 , H01M50/291
CPC classification number: H01M50/242 , H01M10/613 , H01M10/6556 , H01M50/103 , H01M50/209 , H01M50/291 , H01M2220/20
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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Patent Agency Ranking
6.发明授权公开(公告)号：US11990592B2
公开(公告)日：2024-05-21
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 , H01M10/04 , H01M10/647 , H01M10/6556
CPC classification number: H01M10/617 , H01M10/04 , H01M10/647 , H01M10/6556 , H01M2220/20
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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公开(公告)号：US11749999B2
公开(公告)日：2023-09-05
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 , H01M4/131 , H01M4/525 , H01M10/446 , H01M50/51 , 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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公开(公告)号：US20230163296A1
公开(公告)日：2023-05-25
申请号：US18149672
申请日：2023-01-04
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Quanguo Li , Yonghuang Ye , Chengdu Liang , Haizu Jin , Qian Liu , Fajun Huang , Xiaofu Xu
IPC: H01M4/525 , H01M4/505 , H01M10/0525 , H01M10/054
CPC classification number: H01M4/525 , H01M4/505 , H01M10/0525 , H01M10/054
Abstract: A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔRB/ΔRA≤3.50, and 0.10 mΩ/100 cycles≤ΔRA≤0.40 mΩ/100 cycles, where ΔRA is a discharge resistance growth rate of the first cell, and ΔRB is a discharge resistance growth rate of the second cell; and IMPB
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公开(公告)号：US20240322589A1
公开(公告)日：2024-09-26
申请号：US18672378
申请日：2024-05-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaofu Xu , Yibo Shang , Jianfu Pan , Jingxuan Sun , Qian Liu , Yonghuang Ye
CPC classification number: H02J7/007182 , H01M4/364 , H01M4/582 , H01M4/5825 , H01M10/0525 , H01M10/44 , H01M10/48 , H02J7/0048 , H01M2004/028
Abstract: Embodiments of the present application provide a charging control method and a charging control apparatus of a lithium-ion battery. The charging control method includes: performing charging control on the lithium-ion battery for the ith time, so that a battery capacity value of the lithium-ion battery at a target charging cut-off voltage is 0.95C0 to 1.05C0, where C0 is a nominal capacity of the lithium-ion battery, and the target charging cut-off voltage is less than or equal to the nominal voltage of the lithium-ion battery. The charging control method and the charging control apparatus according to the embodiments of the present application are beneficial to keeping the quantity of active lithium unchanged, thereby achieving the effect of automatically supplementing the battery capacity along with aging.
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10.发明授权公开(公告)号：US12068468B2
公开(公告)日：2024-08-20
申请号：US17892621
申请日：2022-08-22
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quanguo Li , Yonghuang Ye , Chengdu Liang , Haizu Jin , Qian Liu , Xiaofu Xu
IPC: H01M10/052 , H01M4/505 , H01M4/525 , H01M4/58 , H01M16/00 , H01M50/209 , H01M50/489 , H01M4/02
CPC classification number: H01M16/00 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M50/209 , H01M50/489 , H01M2004/028
Abstract: The application relates to a battery module, a manufacturing method and a manufacturing device thereof, a battery pack and a power consumption apparatus. The battery module includes a first-type battery cell and a second-type battery cell having different chemical systems and being electrically connected at least in series, where under the conditions of 25° C. and 100% state of charge (SOC), specific power density P2 of the second-type battery cell is higher than specific power density P1 of the first-type battery cell. Satisfying: 0.04≤(r1/m)/(r2/n)≤14, where, r1 and r2 are resistances per unit area of a positive electrode plate of the first-type battery cell and a positive electrode plate of the second-type battery cell respectively, and m and n are numbers of laminations of the positive electrode plate of the first-type battery cell and the positive electrode plate of the second-type battery cell.
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