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公开(公告)号：US20240243378A1
公开(公告)日：2024-07-18
申请号：US18622536
申请日：2024-03-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Shisong LI , Baohua XU , Hongwu SHANG , Zi WANG
CPC classification number: H01M10/488 , B05C5/0245 , B05C5/027 , B05C9/04 , H01M4/0404
Abstract: A battery electrode plate includes an electrode plate body, and each of two surfaces of the electrode plate body is provided with an active material layer. The battery electrode plate further includes an identification layer. The identification layer is arranged on at least one surface, and the coatings on the two surfaces are different in shape or position.
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公开(公告)号：US20230411587A1
公开(公告)日：2023-12-21
申请号：US18234386
申请日：2023-08-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiyang WU , Wang ZHANG , Shisong LI , Chao GUO , Chao YANG
CPC classification number: H01M4/0435 , B05C11/025
Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.
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公开(公告)号：US20230369560A1
公开(公告)日：2023-11-16
申请号：US18357478
申请日：2023-07-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Lei LU , Zheng WANG , Shisong LI
CPC classification number: H01M4/0435 , H01M4/623 , H01M4/5825 , H01M4/625 , H01M4/505 , H01M4/525 , H01M4/131 , H01M4/1391 , H01M2004/021
Abstract: An electrode plate and a preparation method thereof are described. The electrode plate includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the electrode active material layer has a maximum porosity on an outer surface side thereof. The electrode plate in this application has the maximum porosity on the outer surface side of the electrode active material layer, which can significantly increase an infiltration rate of electrolyte to the electrode plate.
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4.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：US20240178362A1
公开(公告)日：2024-05-30
申请号：US18438393
申请日：2024-02-09
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Diwu LI , Hongwu SHANG , Shisong LI , Huan CHE , Zhenguang TANG , Linchen LIAO
CPC classification number: H01M4/0404 , B05C9/04 , B05C9/08 , H01M4/0409
Abstract: An electrode plate manufacturing apparatus includes a first coating device configured to apply a first active material coating on a first side of a current collector; a perforating device configured to perforate the current collector from a second side of the current collector, the second side being opposite to the first side; and a second coating device configured to apply a second active material coating on the second side of the current collector, where the perforating device is located downstream of the first coating device along a travel path of the current collector, and the second coating device is located downstream of the perforating device along the travel path of the current collector.
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Patent Agency Ranking
公开(公告)号：US20230356258A1
公开(公告)日：2023-11-09
申请号：US18222483
申请日：2023-07-17
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yang LIU , Huan CHE , Shisong LI , Yalong QING
IPC: B05C5/02
CPC classification number: B05C5/0258
Abstract: A coating extrusion head may include an extrusion head body and at least one pressure regulating assembly. The extrusion head body may be provided with a coating slot and an accommodating cavity which may be in communication with each other. The at least one pressure regulating assembly may be arranged in the accommodating cavity, and the pressure regulating assembly may be configured to be expandable in a first direction perpendicular to the coating slot.
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公开(公告)号：US20210119197A1
公开(公告)日：2021-04-22
申请号：US17137047
申请日：2020-12-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhiyang WU , Wang ZHANG , Shisong LI , Chao GUO , Chao YANG
IPC: H01M4/04
Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.
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8.发明公开公开(公告)号：US20240282967A1
公开(公告)日：2024-08-22
申请号：US18651763
申请日：2024-05-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Changyuan HU , Lei LU , Yalong WANG , Zheng WANG , Kaiming DENG , Linzhen YU , Shisong LI , Shunhao DAI
CPC classification number: H01M4/622 , H01M4/0411 , H01M4/5825 , H01M2004/021 , H01M2004/028
Abstract: A secondary battery is disclosed. The secondary battery includes a first binder and a second binder, the first binder includes at least one of polyvinylidene fluoride, rubber, epoxy resin, polyurethane, and acrylate, and the second binder includes at least one of polytetrafluoroethylene, polyimide, polypropylene, polyethylene, ethylene vinyl acetate copolymer, and styrene-ethylene-butylene-styrene block copolymer.
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公开(公告)号：US20240207915A1
公开(公告)日：2024-06-27
申请号：US18601998
申请日：2024-03-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xuyong LIU , Jingjing PU , Hongwu SHANG , Shisong LI , Shengwu ZHANG
CPC classification number: B21D1/02 , B21D37/04 , H01M4/0435
Abstract: A flattening device includes a main roller and a plurality of sleeves. The plurality of sleeves are sleeved on the main roller at intervals in an axial direction of the main roller. At least one of the sleeves is detachably connected to the main roller, so that positions of the sleeves in the axial direction of the main roller are adjustable, and the sleeves are in contact with the electrode plate to flatten the electrode plate when the electrode plate passes through the sleeves.
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公开(公告)号：US20240204164A1
公开(公告)日：2024-06-20
申请号：US18416904
申请日：2024-01-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Fang LUO , Huan CHE , Tao NIE , Wei CHEN , Shisong LI
CPC classification number: H01M4/0471 , F26B3/30 , F26B21/004 , H01M4/139
Abstract: The present disclosure relates to the field of battery production device technologies, and more particularly, to an oven and a battery assembly line production device. The oven at least includes a first oven unit, a second oven unit, a third oven unit, and a fourth oven unit that are sequentially connected in series in a conveying direction of the electrode plate. Based on drying physical characteristics of the electrode plate, the first oven unit and the third oven unit are internally provided with air nozzles and infrared heaters for drying the electrode plate by hot air and infrared rays. The second oven unit and the fourth oven unit are internally provided with the air nozzles for drying the electrode plate by hot air.
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