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公开(公告)号：US20250062333A1
公开(公告)日：2025-02-20
申请号：US18720834
申请日：2022-12-22
Inventor： Jin Zhang , Issei Ikeuchi , Mitsuhiro Hibino , Kensuke Nakura
IPC: H01M4/505 , C01G45/12 , H01M10/0525
Abstract: A positive electrode active material for a secondary battery contains a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to the space group Fm-3m. The lithium metal composite oxide contains at least one element A1 selected from the group consisting of Fe, Ca, Cr, Na, Al, Si, Mg, Cu, Zn, Pb, Sb, and W. The content of the element A1 in the lithium metal composite oxide is 10 ppm by mass or more and 1000 ppm by mass or less with respect to the total amount of the lithium metal composite oxide. A lattice constant a, which indicates a length in an a-axis direction of a crystal lattice of the lithium metal composite oxide is 4.09 Å or more and 4.16 Å or less.
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Patent Agency Ranking
公开(公告)号：US20230369579A1
公开(公告)日：2023-11-16
申请号：US18028999
申请日：2021-09-14
Inventor： Jin Zhang , Issei Ikeuchi , Mitsuhiro Hibino , Kensuke Nakura
IPC: H01M4/505 , H01M4/1315 , C01B11/24
CPC classification number: H01M4/505 , C01B11/24 , H01M4/1315 , C01P2006/40
Abstract: A positive electrode active material for a secondary battery including: a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m. The lithium metal composite oxide contains an element A1 of at least one selected from the group consisting of Ca, Al, and Si, and in the lithium metal composite oxide, a total of Ca, Al, and Si contents relative to a total of the lithimn metal composite oxide is 10 to 1000 ppm by mass.
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公开(公告)号：US20230335728A1
公开(公告)日：2023-10-19
申请号：US18028929
申请日：2021-09-14
Inventor： Jin Zhang , Issei Ikeuchi , Mitsuhiro Hibino , Kensuke Nakura
IPC: H01M4/505 , H01M4/1315 , C01G45/12
CPC classification number: H01M4/505 , H01M4/1315 , C01G45/1228 , C01P2006/40 , C01P2002/52 , C01P2002/76
Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock salt structure belonging to a space group Fm-3m, wherein the lithium metal composite oxide includes Ti and a metal element M1 other than Li and Ti. The metal element M1 preferably further includes at least one selected from the group consisting of Fe, Ge, Si, and Ga.
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公开(公告)号：US20230094468A1
公开(公告)日：2023-03-30
申请号：US17799761
申请日：2021-01-21
Inventor： Jin Zhang , Issei Ikeuchi , Mitsuhiro Hibino , Kensuke Nakura
IPC: H01M4/525 , H01M4/505 , H01M4/485 , H01M50/46 , H01M10/0525
Abstract: This positive electrode active material for a non-aqueous electrolyte secondary battery contains a lithium-transition metal composite oxide that has a rock salt-related structure and is represented by the compositional formula LiaMnbMcO2-xFx (in the formula: M is at least one metal element excluding Li and Mn; 2.000
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公开(公告)号：US11038171B2
公开(公告)日：2021-06-15
申请号：US16405385
申请日：2019-05-07
Inventor： Kazuko Asano , Kensuke Nakura , Mitsuhiro Hibino , Jin Zhang
Abstract: An active material for a fluoride ion secondary battery includes a composite fluoride which contains: an alkali metal or NH4; a transition metal; and fluorine.
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公开(公告)号：US20240379952A1
公开(公告)日：2024-11-14
申请号：US18686562
申请日：2022-08-25
Inventor： Jin Zhang , Shogo Esaki , Mitsuhiro Hibino , Kensuke Nakura
Abstract: A positive electrode active material for a secondary battery includes a lithium metal composite oxide having a crystal structure based on a rock-salt structure belonging to a space group Fm-3m. The lithium metal composite oxide contains a first metal element other than Li, and a second metal element other than Li and the first metal element. The first metal element is at least one selected from the group consisting of Gd, Ce, Eu, Sm, and Yb.
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