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公开(公告)号：US20240262712A1
公开(公告)日：2024-08-08
申请号：US18639987
申请日：2024-04-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jingpeng Fan , Zhenguo Zhang , Na Liu , Qi Wu , Qiang Chen , Dong Zhao , Jing Wang
IPC: C01G53/00
CPC classification number: C01G53/54 , C01P2002/32 , C01P2002/72 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C01P2006/40
Abstract: Provided is a spinel lithium nickel manganese oxide material, in which an XRD pattern of the spinel lithium nickel manganese oxide material satisfies: 0
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公开(公告)号：US20240387819A1
公开(公告)日：2024-11-21
申请号：US18786584
申请日：2024-07-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qiang Chen , Qi Wu , Huan Ni , Chongheng Shen , Shuxing Huan , Dong Zhao , Jingpeng Fan , Jing Wang , Na Liu
Abstract: The present application provides a positive electrode active material and a preparation method thereof. The positive electrode active material of the present application has high compaction density, improved structural stability, high filling degree among particles, good dispersibility, and good material processing performance, which can effectively improve the energy density of a battery, and improve the cycling performance and safety performance of the battery. The present application further provides a secondary battery, a battery module, a battery pack, and an electrical device including the positive electrode active material.
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3.发明公开公开(公告)号：US20240199441A1
公开(公告)日：2024-06-20
申请号：US18412601
申请日：2024-01-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Dong Zhao , Qi Wu , Chongheng Shen , Bangrun Wang , Qiang Chen , Jingpeng Fan , Na Liu
CPC classification number: C01G53/50 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/00 , C01P2002/08 , C01P2004/61 , C01P2004/84 , C01P2006/12 , H01M2004/021 , H01M2004/028
Abstract: This application relates to a positive active material, a method for preparing same, an electrode plate, a secondary battery, and an electrical device. The positive active material includes: a core material, including a lithium-rich manganese-based positive electrode material; and a cladding layer, covering an outer surface of the core material, where the cladding layer includes an oxygen-ion conductor and a lithium-ion conductor.
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Patent Agency Ranking
4.发明公开公开(公告)号：US20230299276A1
公开(公告)日：2023-09-21
申请号：US18323423
申请日：2023-05-25
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Dong Zhao , Qi Wu , Qiang Chen , Jingpeng Fan , Jing Wang , Na Liu
CPC classification number: H01M4/366 , H01M4/5825 , H01M4/587 , H01M4/0471 , H01M2004/028
Abstract: A positive electrode active material and a preparation method thereof, a secondary battery, and an electric apparatus are provided. The positive electrode active material in the present invention includes: a core, where the core is a lithium-containing phosphate; a first coating layer disposed on at least part of surface of the core, where the first coating layer is a carbon coating layer co-doped with titanium and nitrogen; and a second coating layer disposed on at least part of surface of the first coating layer, where the second coating layer includes Li1+xMxTi2−x(PO4)3, where M is at least one element selected from aluminum, lanthanum, indium, zirconium, gallium, and scandium, and 0.2≤x≤0.8. With use of the positive electrode active material of the present invention, a high discharge capacity, excellent rate performance, and excellent cycling performance can be achieved.
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公开(公告)号：US20230282821A1
公开(公告)日：2023-09-07
申请号：US18315511
申请日：2023-05-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhenguo Zhang , Jingpeng Fan , Xingkai Hu , Sihui Wang , Qiang Chen , Na Liu
CPC classification number: H01M4/505 , H01M4/525 , H01M4/131 , C01G53/54 , H01M2004/021
Abstract: A spinel-type nickel-manganese-lithium-containing composite oxide, a preparation method thereof, and a secondary battery and an electric apparatus containing the same are provided. A body material of the spinel-type nickel-manganese-lithium-containing composite oxide is represented by a general formula LixNiyMnzMmO4Qq, and both element P and one or more elements selected from elements Nb, W, and Sb are doped in the body material, where based on mass of the spinel-type nickel-manganese-lithium-containing composite oxide, doping content k of the element P satisfies 0.48 wt %≤k≤3.05 wt %, doping content g of the one or more elements selected from the elements Nb, W, and Sb satisfies 0.05 wt %≤g≤0.31 wt %, and 2≤k/g≤20. The secondary battery provided in this application has good high-temperature storage performance and high-temperature cycling performance.
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公开(公告)号：US20230083478A1
公开(公告)日：2023-03-16
申请号：US17969630
申请日：2022-10-19
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qi WU , Qiang Chen , Jingpeng Fan , Tao Huang , Qisen Huang
Abstract: The present application provides a high-nickel ternary positive electrode active material, which comprises a core Li1+a[LixCoyMnzMb]O2, a fast ionic conductor LiαAlXSiYO4 of a first shell layer, an oxide of an element R of a second shell layer, and a transition layer LipRqOw formed between the first shell layer and the second shell layer. In the high-nickel ternary positive electrode active material of the present application, the surface impurity lithium amount is significantly reduced, and by creatively converting the surface impurity lithium into effective components in the fast ionic conductors LiαAlXSiYO4 and LipRqOw which accelerate the intercalation/deintercalation of lithium ions in the core material, the decomposition and gas production of an electrolyte solution caused by the surface impurity lithium is greatly improved, such that a high-nickel ternary lithium-ion battery has high energy density as well as good cycle performance and safety performance.
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公开(公告)号：US11881582B2
公开(公告)日：2024-01-23
申请号：US18323423
申请日：2023-05-25
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Dong Zhao , Qi Wu , Qiang Chen , Jingpeng Fan , Jing Wang , Na Liu
CPC classification number: H01M4/366 , H01M4/0471 , H01M4/587 , H01M4/5825 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode active material and a preparation method thereof, a secondary battery, and an electric apparatus are provided. The positive electrode active material in the present invention includes: a core, where the core is a lithium-containing phosphate; a first coating layer disposed on at least part of surface of the core, where the first coating layer is a carbon coating layer co-doped with titanium and nitrogen; and a second coating layer disposed on at least part of surface of the first coating layer, where the second coating layer includes Li1+xMxTi2−x(PO4)3, where M is at least one element selected from aluminum, lanthanum, indium, zirconium, gallium, and scandium, and 0.2≤x≤0.8. With use of the positive electrode active material of the present invention, a high discharge capacity, excellent rate performance, and excellent cycling performance can be achieved.
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8.发明公开公开(公告)号：US20230322579A1
公开(公告)日：2023-10-12
申请号：US18326025
申请日：2023-05-31
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qiang Chen , Qi Wu , Jingpeng Fan , Tao Huang , Na Liu
IPC: C01G53/00 , H01M10/0525 , C01G51/00 , H01M50/204
CPC classification number: C01G53/006 , C01G51/006 , H01M10/0525 , H01M50/204 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/40
Abstract: A positive electrode material, including a core and a shell layer are provided. In some embodiments, a molecular formula of the core is Li1+aNixCoyMn1-x-yM1zO2, 0.8≤x
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