-
公开(公告)号：US20250023030A1
公开(公告)日：2025-01-16
申请号：US18899621
申请日：2024-09-27
Applicant: Ningde Amperex Technology Limited
Inventor： Zheng YI , Zigui ZHENG , Yuansen XIE
Abstract: A negative electrode active material has a core-shell structure. The negative electrode active material includes a first shell and at least two core material particles located in the first shell. The core material includes hard carbon. The first shell includes a first shell material with a volumetric specific capacity of 800 mAh/cm3 or more.
-
2.发明公开公开(公告)号：US20240239681A1
公开(公告)日：2024-07-18
申请号：US18621509
申请日：2024-03-29
Applicant: Ningde Amperex Technology Limited
Inventor： Zheng YI , Fujin TAN , Zigui ZHENG , Yuansen XIE
CPC classification number: C01G9/006 , H01M4/583 , C01P2002/72 , C01P2002/82 , C01P2004/51 , C01P2004/84 , C01P2006/40 , H01M2004/027
Abstract: A hard carbon material includes a porous skeleton, a first element, and element zinc, where the first element includes at least one of element nitrogen, element sulfur, element boron, element phosphorus or element selenium. A percentage of the first element with respect to a total mass of the hard carbon material is A1%, and a percentage of element zinc with respect to the total mass of the hard carbon material is A2%, where the hard carbon material satisfies 1.5≤A1/A2≤5. When applied to an electrochemical apparatus, the hard carbon material can significantly improve the energy density of the electrochemical apparatus.
-
公开(公告)号：US20240162440A1
公开(公告)日：2024-05-16
申请号：US18390487
申请日：2023-12-20
Applicant: Ningde Amperex Technology Limited
Inventor： Zigui ZHENG , Zheng YI , Peng DU , Yuansen XIE
IPC: H01M4/587 , C01B32/05 , H01M4/133 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M4/02
CPC classification number: H01M4/587 , C01B32/05 , H01M4/133 , H01M10/0525 , H01M10/0567 , H01M10/0568 , C01P2002/74 , C01P2004/03 , C01P2006/11 , C01P2006/12 , C01P2006/40 , H01M2004/021 , H01M2004/027 , H01M2300/0025
Abstract: A negative electrode includes a negative electrode active material layer, the negative electrode active material layer includes negative electrode active material particles, and the negative electrode active material particle includes a porous portion and a nonporous portion with heteroatoms. The heteroatom includes at least one of element boron, nitrogen, fluorine, phosphorus, or sulfur and is located on an interface, and the interface is a region, in the nonporous portion, formed from a bordering position between the nonporous portion and the porous portion to 0.5 μm from the bordering position. The porous portion improves the lithium ion intercalation and deintercalation efficiency. In addition, boron, nitrogen, and other elements doped increase the gram capacity of the negative electrode active material, helping increase the energy density of the electrochemical apparatus.
-
4.发明公开公开(公告)号：US20240113275A1
公开(公告)日：2024-04-04
申请号：US18374006
申请日：2023-09-28
Applicant: Ningde Amperex Technology Limited
Inventor： Zigui ZHENG , Fujin TAN , Zheng YI , Yuansen XIE
IPC: H01M4/04 , H01M4/36 , H01M4/583 , H01M10/0525
CPC classification number: H01M4/0471 , H01M4/0404 , H01M4/366 , H01M4/583 , H01M10/0525 , H01M2004/021
Abstract: A composite material includes a graphite particle. A surface of the graphite particle is provided with a first region and a second region. The first region is made of graphite, and the second region includes a hard carbon layer. A surface area of the first region is denoted as A1 μm2, and a surface area of the second region is denoted as A2 μm2, 0≤A1/A2≤9. A thickness of the hard carbon layer is H nm, 5≤H≤500. By controlling the coating amount and coating area of the hard carbon to satisfy the above relationship, this application can improve energy density, capacity performance, and the like at the same time of enhancing dynamic performance.
-
公开(公告)号：US20220173386A1
公开(公告)日：2022-06-02
申请号：US17440723
申请日：2020-03-05
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor： Zhihuan CHEN , Daoyi JIANG , Hang CUI , Yuansen XIE
IPC: H01M4/36 , H01M10/0525 , H01M4/587 , H01M4/48
Abstract: The present application relates to an anode material, and an electrochemical device and an electronic device using the same. The anode material of the present application includes: a silicon compound SiOx, where x is 0.5-1.5; an oxide MeOy layer, the MeOy layer coating at least a portion of the silicon compound SiOx, where Me includes at least one of Al, Si, Ti, Mn, V, Cr, Co or Zr, where y is 0.5-3; and a carbon nanotube layer, the carbon nanotube layer coating at least a portion of the MeOy layer. The anode material can significantly enhance the cycle performance and rate performance of the electrochemical device, and significantly reduce the impedance of the electrochemical device.
-
Patent Agency Ranking
公开(公告)号：US20220158176A1
公开(公告)日：2022-05-19
申请号：US17585976
申请日：2022-01-27
Applicant: Ningde Amperex Technology Limited
Inventor： Daoyi JIANG , Zhihuan CHEN , Hang CUI , Yuansen XIE
IPC: H01M4/36 , H01M4/485 , H01M4/60 , H01M10/0525 , H01M4/62
Abstract: An anode material includes a lithiated silicon oxide material, an inorganic coating layer, and a polymer coating layer, wherein the inorganic coating layer and the lithiated silicon oxide material at least have Si—O-M bonds therebetween, and M includes at least one of an aluminum element, a boron element, and a phosphorus element. The anode material has high water stability, high first coulombic efficiency, and good cycle stability.
-
公开(公告)号：US20250105265A1
公开(公告)日：2025-03-27
申请号：US18894061
申请日：2024-09-24
Applicant: Ningde Amperex Technology Limited
Inventor： Xin LI , Yisong SU , Yuansen XIE
IPC: H01M4/36 , H01M4/02 , H01M4/38 , H01M4/60 , H01M4/62 , H01M10/0525 , H01M10/0569
Abstract: A negative active material includes a silicon-based composite material. The silicon-based composite material includes a silicon substrate, a conductive agent and a polymer. The conductive agent and the polymer are disposed on at least a portion of a surface of the silicon substrate. The silicon-based composite material has a powder conductivity from 0.03 S/cm to 0.1 S/cm.
-
公开(公告)号：US20240322172A1
公开(公告)日：2024-09-26
申请号：US18613168
申请日：2024-03-22
Applicant: Ningde Amperex Technology Limited
Inventor： Zigui ZHENG , Zheng YI , Fujin TAN , Yuansen XIE
IPC: H01M4/587 , H01M4/02 , H01M10/0525
CPC classification number: H01M4/587 , H01M2004/021 , H01M2004/027 , H01M10/0525
Abstract: A hard carbon material has a pore structure. A scattering vector of the pore structure in a small-angle X-ray scattering spectrum is N1 nm−1, and 0.1≤N1≤7. The hard carbon material exhibits a scattering intensity convex peak. A full-width-at-half-maximum of the convex peak is L1 nm−1, and 0.1≤L1≤3.5. A pore volume of micropores of the hard carbon material measured by a nitrogen adsorption method is V2 cc/g, and 0
-
公开(公告)号：US20240243248A1
公开(公告)日：2024-07-18
申请号：US18619990
申请日：2024-03-28
Applicant: Ningde Amperex Technology Limited
Inventor： Zheng YI , Zigui ZHENG , Yuansen XIE
CPC classification number: H01M4/133 , H01M4/364 , H01M4/587 , H01M2004/021 , H01M2004/027
Abstract: A negative electrode plate includes a negative current collector and a negative active material layer disposed on at least one side of the negative current collector. The negative active material layer includes a negative active material, the negative active material includes graphite and hard carbon, and a ratio of a mass percent ωH of hydrogen to a mass percent ωC of carbon in the hard carbon is 0.02≤ωH/ωC≤0.20. The negative electrode plate enhances the high-temperature cycle performance of the electrochemical device.
-
10.发明公开公开(公告)号：US20240213474A1
公开(公告)日：2024-06-27
申请号：US18601234
申请日：2024-03-11
Applicant: Ningde Amperex Technology Limited
Inventor： Lihong HE , Jia TANG , Jiali DONG , Yuansen XIE
CPC classification number: H01M4/587 , C01B32/20 , C01P2002/74 , C01P2002/82 , C01P2004/03 , C01P2006/40 , H01M2004/021 , H01M2004/027
Abstract: A negative active material includes a carbon material. The carbon material satisfies the following relationship: 6.1
-
-
-
-
-
-
-
-
-
Search Results
51
records
(took 0.021 seconds)
