-
公开(公告)号：US20240413308A1
公开(公告)日：2024-12-12
申请号：US18424934
申请日：2024-01-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jingpeng FAN , Qi WU , Zhenguo ZHANG , Qiang CHEN , Dong ZHAO , Na LIU , Jing WANG
Abstract: This application provides a lithium-nickel-manganese-containing composite oxide, a preparation method thereof, and a positive electrode plate, secondary battery, and electric apparatus containing the same. The lithium-nickel-manganese-containing composite oxide has a core-shell structure and includes a core and a shell enveloping surface of the core, where the core includes Lix(NiyMn2-y)1-mMmO4. M includes one or more selected from Mg, elements from group IVB to group VIB, elements from group IIIA to group VA, and lanthanide elements, where 0.95≤x≤1.10, 0.40≤y≤0.60, and 0.001≤m≤0.015. The shell includes lithium aluminum phosphate and optionally includes lithium aluminum phosphate and aluminum phosphate.
-
2.发明公开公开(公告)号：US20230420751A1
公开(公告)日：2023-12-28
申请号：US18466815
申请日：2023-09-13
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhenguo ZHANG , Chang PENG , Sihui WANG , Na LIU , Jingpeng FAN , Dong ZHAO , Zhijie YAO
CPC classification number: H01M10/4235 , H01M4/366 , H01M4/525 , H01M4/505 , H01M4/5825 , H01M10/0568 , H01M2004/021
Abstract: A secondary battery includes a positive electrode sheet having a positive electrode active material and a non-aqueous electrolyte. The positive electrode active material includes a central core material and a modification layer disposed on a surface of the central core material. The modification layer including an orthophosphate with a molecular formula Aa+x[PO4]3−y, where A denotes one or more of Li, Na, K, Rb, Cs, Mg, Ca, Ba, Ni, Fe, Co, Ti, Al, Cr, V, Nb, and W, 1≤a≤6, and ax=3y. The non-aqueous electrolyte includes a fluorinated phosphate with a molecular formula Bb+m[PO1+cF3-c]c−n, where B denotes one or more of Li, Na, K, Rb, Cs, Mg, Ca, and Ba, 1≤b≤2, c denotes 1 or 2, and bm=cn.
-
3.发明公开公开(公告)号：US20240079579A1
公开(公告)日：2024-03-07
申请号：US18508954
申请日：2023-11-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhenguo ZHANG , Xingkai HU , Xiang YIN , Jingpeng FAN , Sihui WANG , Zhijie YAO , Na LIU
CPC classification number: H01M4/505 , C01G45/1242 , H01M2004/028
Abstract: A positive active material, a secondary battery, a battery module, a battery pack, and an electrical device are disclosed. The positive active material includes a spinel-type lithium-manganese-containing composite oxide with a molecular formula of Li1+xAaMbXcMn2−a−b−c−xO4−t. In the molecular formula: A is a doping element for a manganese site of the spinel-type lithium-manganese-containing composite oxide; M is used for combining with O to form a second phase containing a polyoxyanion, and M includes one or more of B, C, N, Si, P, S, or Cl; X includes one or more of Mg, Al, Si, Ca, Sc, Ti, Cr, Fe, Co, Ni, Cu, Zn, or Zr; and the molecular formula satisfies: −0.1≤x≤0.3, 0
-
公开(公告)号：US20230119115A1
公开(公告)日：2023-04-20
申请号：US18085497
申请日：2022-12-20
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jinhua HE , Qi WU , Jingpeng FAN , Qiang CHEN , Yuxiang ZHAO
Abstract: This application provides a positive-electrode active material and a manufacturing method thereof. The positive-electrode active material includes a positive-electrode active material matrix and a coating layer, and the coating layer coats a surface of the positive-electrode active material matrix. The positive-electrode active material matrix is Li1+a[NixCoyMnzMb]O2, where 0
-
Patent Agency Ranking
5.发明公开公开(公告)号：US20240262711A1
公开(公告)日：2024-08-08
申请号：US18500131
申请日：2023-11-02
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhenguo ZHANG , Sihui WANG , Jingpeng FAN , Na LIU
IPC: C01G53/00
CPC classification number: C01G53/54 , C01P2006/40
Abstract: The present application provides a positive electrode active material of Li1+xNiyMzMn2-x-y-zO4-k, −0.1≤x≤0.2, 0.4≤y≤0.6, 0≤z≤0.2, M is one or more of Cr, Mo, Nb, Ru, P, S, Ta, W, Tl, and Ti, and in a first-cycle charging curve of a half battery of the positive electrode active material, a ratio of a charging capacity of 3.5 V-4.4 V to a charging capacity of 3.5 V-4.95 V is A, A meets 0.04≤A≤0.3, a product of k and A meets 0≤kA≤0.015, and the first-cycle charging curve is measured at a rate of 0.1 C. The positive electrode active material of the present application balances high kinetic performance and high chemical stability, and a corresponding secondary battery has both high-rate discharge capability and long-term storage stability.
-
6.发明公开公开(公告)号：US20230395796A1
公开(公告)日：2023-12-07
申请号：US18325996
申请日：2023-05-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qi WU , Qiang CHEN , Yuxiang ZHAO , Jingpeng FAN , Qisen HUANG
IPC: H01M4/525 , H01M10/0525 , H01M4/36 , H01M4/04 , H01M4/505
CPC classification number: H01M4/525 , H01M10/0525 , H01M4/366 , H01M4/0471 , H01M4/505 , H01M2220/20 , H01M2004/028
Abstract: A modified high-nickel ternary positive electrode material includes an inner core and inner and outer coating layers. The inner core includes a high-nickel ternary positive electrode material matrix, the matrix being doped with M1, M2, and W. M1 is one of Mo, Zr, Ti, Sb, Nb, and Te. M2 is one of Mg, Al, Ca, Zn, and Sr. Chemical formula of the high-nickel ternary positive electrode material matrix is Li1+a[NixCoyMnzM1bM2cWd]O2. 0.65≤x
-
7.发明公开公开(公告)号：US20240199439A1
公开(公告)日：2024-06-20
申请号：US18322010
申请日：2023-05-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qi WU , Chongheng SHEN , Qiang CHEN , Jingpeng FAN , Yuxiang ZHAO , Qisen HUANG
CPC classification number: C01G53/006 , C01G53/04 , H01M4/505 , H01M4/525 , C01P2002/72 , C01P2004/03 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2004/84 , C01P2006/11 , C01P2006/12 , C01P2006/40 , H01M2004/021 , H01M2004/028 , H01M10/0525
Abstract: This application relates to a ternary precursor for making a material for positive electrodes in lithium batteries. In the ternary precursor, primary particles or whiskers of the ternary precursor are distributed in a radial direction. A deformation stacking fault probability fD of the ternary precursor is ≤2.5%. This application further relates to a preparation method of the ternary precursor, a ternary positive electrode material, a secondary battery, a battery module, a battery pack, and an electric apparatus.
-
公开(公告)号：US20240079565A1
公开(公告)日：2024-03-07
申请号：US18384665
申请日：2023-10-27
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jing WANG , Qiang CHEN , Qi WU , Dong ZHAO , Jingpeng FAN , Na LIU
CPC classification number: H01M4/366 , H01M4/131 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0565 , H01M2004/028
Abstract: A modified positive electrode material includes an inner core and a cladding layer. The inner core is a positive electrode material, and the cladding layer includes a polymer electrolyte body and a ferroelectric ceramic material dispersed in the polymer electrolyte body.
-
9.发明公开公开(公告)号：US20240014386A1
公开(公告)日：2024-01-11
申请号：US18472030
申请日：2023-09-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Dong ZHAO , Qi WU , Jingpeng FAN , Qiang CHEN , Jing WANG , Na LIU
CPC classification number: H01M4/366 , H01M4/505 , H01M4/525 , H01M4/0471 , H01M2004/028
Abstract: A positive electrode material includes a core including a lithium-rich manganese-based positive electrode material, and a coating layer enveloping outer surface of the core and including a composite material of a transition metal oxoacid salt and carbon. The transition metal in the transition metal oxoacid salt is selected from at least one of Ti, Mo, W, V, Ta, Nb or Nd and the composite material has a mesh structure.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
