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11.发明公开公开(公告)号：US20230327288A1
公开(公告)日：2023-10-12
申请号：US18202293
申请日：2023-05-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Manman WANG , Xiaoming GE
IPC: H01M50/449 , H01M10/0525 , H01M50/431
CPC classification number: H01M50/449 , H01M10/0525 , H01M50/431 , H01M2220/20
Abstract: The present application provides a composite separator, an electrochemical energy storage apparatus, and an electrical apparatus. The composite separator provided in a first aspect of the present application may comprise: a first base film and a second base film; and an anode protection layer located between the first base film and the second base film in a thickness direction of the composite separator, for capturing transition metal ions. The anode protection layer for capturing transition metal ions may be arranged between the first base film and the second base film to prevent the anode protection layer from falling off from an outer surface of the base films during prolonged use, so that the anode protection layer can have more stable anode protection effects in prolonged use of the electrochemical energy storage apparatus, and improve the application performance of the electrochemical energy storage apparatus.
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公开(公告)号：US20230323556A1
公开(公告)日：2023-10-12
申请号：US18334552
申请日：2023-06-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yukun WU , Xiaoming GE
CPC classification number: C25D5/20 , C30B29/02 , H01M4/661 , C30B30/06 , C30B7/12 , C25D1/04 , H01M4/0452 , C25D3/38
Abstract: A method for preparing an electrolytic copper foil includes placing an anode and a cathode to be plated in a twin crystal growth agent containing electroplating solution in an electroplating tank, and, under conditions that the electroplating solution is provided with randomly alternating transitions of one or two of an ultrasonic wave at a frequency f11 and an ultrasonic wave at a frequency f12 and one or two of an ultrasonic wave at a frequency f21 and an ultrasonic wave at a frequency f22, performing direct current electroplating to obtain the electrolytic copper foil, wherein f11>40 kHz, 15 kHz
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13.发明公开公开(公告)号：US20230261209A1
公开(公告)日：2023-08-17
申请号：US18127040
申请日：2023-03-28
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Manman WANG , Xiaoming GE , Chuying OUYANG
CPC classification number: H01M4/808 , H01M4/667 , H01M4/662 , H01M4/0435
Abstract: A current collector may comprise a strength enhancement layer and a current collecting layer, wherein the current collecting layer may be stacked and bonded with the strength enhancement layer, and the current collecting layer may comprise a foam metal portion and a solid metal portion.
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公开(公告)号：US20230137311A1
公开(公告)日：2023-05-04
申请号：US17939096
申请日：2022-09-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Manman WANG , Xiaoming GE
Abstract: This application provides a battery current collector and a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The battery current collector includes a foam metal layer (1) and a strength enhancement layer (2), where the strength enhancement layer (2) is a sheet-shaped metal layer, and the strength enhancement layer (2) and the foam metal layer (1) are stacked and metallurgically bonded, alleviating a problem of poor mechanical performance of current collectors in the related art. The strength enhancement layer (2) and the foam metal layer (1) are connected by metallurgical bonding, which helps ensure not only structural strength of the strength enhancement layer (2) and the foam metal layer (1), but also good conductivity between the strength enhancement layer (2) and the foam metal layer (1). Further, the manner of metallurgical bonding helps reduce production costs.
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公开(公告)号：US20240372110A1
公开(公告)日：2024-11-07
申请号：US18773630
申请日：2024-07-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yujie CHEN , Xiaoming GE , Yulei FAN
Abstract: This application discloses an electrode plate, an electrode assembly, a battery cell, a battery, an electrical device, and an electrode plate manufacturing method and equipment. The electrode plate includes a foamed metal layer. A part of the foamed metal layer is a filled region. Pores of the filled region are filled with a filler. The filler extends continuously from one edge to another edge of the foamed metal layer, the two edges being arranged on two opposite sides along a first preset direction. The first preset direction is perpendicular to a thickness direction of the foamed metal layer. In the electrode plate disclosed in this application, a part of the foamed metal layer is configured as a filling region filled with a filler.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240304946A1
公开(公告)日：2024-09-12
申请号：US18664286
申请日：2024-05-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yulei FAN , Yiheng WANG , Xiaoming GE , Chuying OUYANG
IPC: H01M50/446 , H01M50/403 , H01M50/417 , H01M50/434 , H01M50/457 , H01M50/489
CPC classification number: H01M50/446 , H01M50/403 , H01M50/417 , H01M50/434 , H01M50/457 , H01M50/489
Abstract: A separator includes a first porous base film; a second porous base film; and an intermediate layer arranged between the first porous base film and the second porous base film, wherein the intermediate layer comprises an inorganic phase and an organic phase into which the inorganic phase is embedded, the inorganic phase contains an inorganic particle, the organic phase connects the first porous base film with the second porous base film, and the organic phase contains a base film material and does not contain a binder.
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17.发明公开公开(公告)号：US20240291118A1
公开(公告)日：2024-08-29
申请号：US18649394
申请日：2024-04-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Manman WANG , Feng LIU , Xiaoming GE
IPC: H01M50/536 , B23K20/10 , H01M4/02 , H01M4/04 , H01M4/66 , H01M4/80 , H01M50/534
CPC classification number: H01M50/536 , B23K20/103 , H01M4/0435 , H01M4/661 , H01M4/808 , H01M50/534 , H01M2004/021 , H01M2004/027 , H01M2220/20
Abstract: This application provides a negative electrode plate and a method for preparing same. In the method, a metal foil is connected to a foamed metal current collector by roll welding, so as to form the negative electrode plate. The metal foil forms a tab of the negative electrode plate, and the foamed metal current collector includes a foamed metal layer of a porosity of 60% to 99%, and optionally 80% to 85%. The method reduces or avoids flying metal chips and cold solder joints, and improves mechanical strength and electrical conductivity of the electrode plate. This application also provides a negative electrode plate prepared by the method, a secondary battery containing the negative electrode plate, and an electrical device.
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18.发明公开公开(公告)号：US20240222597A1
公开(公告)日：2024-07-04
申请号：US18602149
申请日：2024-03-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yujie CHEN , Xiaoming GE , Yiheng WANG
IPC: H01M4/13 , H01M4/02 , H01M10/0525
CPC classification number: H01M4/13 , H01M2004/021 , H01M2004/027 , H01M10/0525 , H01M2220/20
Abstract: The present application provides a negative electrode sheet, an electrode assembly, a battery cell, a battery, and an electrical device, belonging to the field of battery technology. The negative electrode sheet includes a porous matrix and a first insulator. The porous matrix has a first surface area in its thickness direction. A first insulator clads at least a partial metal surface of the first surface area. The negative electrode sheet with this structure makes it difficult for lithium ions to obtain electrons on the surface of the porous matrix during use, which can effectively alleviate precipitation of lithium metal and formation of dendritic crystals on the surface of the negative electrode sheet.
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19.发明公开公开(公告)号：US20240097209A1
公开(公告)日：2024-03-21
申请号：US18526525
申请日：2023-12-01
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yukun WU , Xiaoping ZHANG , Xiaoming GE
CPC classification number: H01M10/4235 , H01M50/46 , H01M10/0525
Abstract: This application provides a battery cell, a battery, an electric apparatus, and a manufacturing method and device of battery cell. The battery cell includes an end cover and a housing, the end cover and the housing forming an accommodating cavity; an electrode assembly accommodated in the accommodating cavity; an insulator configured to isolate the end cover from the electrode assembly; and a protective film fitting around outer circumference of the electrode assembly, the protective film and the insulator being fit together. The protective film and the insulator being fit together does not require hot-melt connection during assembly, thereby avoiding drawing in over-melting, falling off in under-melting, and the like of the protective film caused by hot-melt connection.
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20.发明公开公开(公告)号：US20240092211A1
公开(公告)日：2024-03-21
申请号：US18523933
申请日：2023-11-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qifan ZOU , Xihui WANG , Wenzhu XU , Xiaoming GE
Abstract: The present application provides a method and a device for charging a secondary battery, a computer storage medium and electronic equipment. The charging method includes steps of: sending first charge information to a charging source by a battery management system, the first charge information includes a first charge power; performing a constant-power charging on the secondary battery by the charging source according to the first charge power; sending a plurality of pulse discharge information to the charging source by the BMS when a battery status parameter reaches a first predetermined value, each pulse discharge information includes a discharge power and a discharge duration; and performing multiple constant-power pulse discharges on the secondary battery by the charging source according to the discharge power and the discharge duration in the plurality of pulse discharge information.
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