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公开(公告)号：US20240178396A1
公开(公告)日：2024-05-30
申请号：US18284205
申请日：2022-03-30
Inventor： Kosuke Kuroda , Youichirou Uka , Koh Masahara , Tomohiro Harada , Rina Yamamoto
IPC: H01M4/62 , C09D5/24 , C09D7/40 , C09D7/45 , C09D7/61 , C09D7/65 , C09D139/06 , H01M4/131 , H01M4/525
CPC classification number: H01M4/622 , C09D5/24 , C09D7/45 , C09D7/61 , C09D7/65 , C09D7/70 , C09D139/06 , H01M4/131 , H01M4/525 , H01M4/625
Abstract: A disclosed conductive material dispersion liquid includes a conductive material including carbon nanotubes, dispersants, and a polar aprotic solvent. The dispersants include a polyvinylpyrrolidone-based compound and a cellulose derivative.
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公开(公告)号：US20220216460A1
公开(公告)日：2022-07-07
申请号：US17604144
申请日：2020-04-24
Inventor： Kosuke Kuroda , Hiroshi Kawada , Atsushi Fukui
Abstract: A positive electrode active material for a secondary battery according to an embodiment contains: a first composite oxide component represented by general formula Liα[LixMnyCozMe(1−x−y−z)]O2 (in the formula, Me is at least one selected from among Ni Fe, Ti, Bi, Nb, W, Mo, and Ta, 0.5
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公开(公告)号：US20220216467A1
公开(公告)日：2022-07-07
申请号：US17604654
申请日：2020-04-16
Inventor： Hiroshi Kawada , Kosuke Kuroda , Atsushi Fukui
Abstract: This lithium transition metal composite oxide, which configures a secondary battery positive electrode active material, is a composite oxide represented by general formula Liα[LixMnyCozMe(1-x-y-z)]O2 (in the formula, Me is at least one species selected from Ni, Fe, Ti, Bi and Nb, and 0.5
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公开(公告)号：US12119490B2
公开(公告)日：2024-10-15
申请号：US17263670
申请日：2019-02-21
Inventor： Kosuke Kuroda , Hiroshi Kawada , Atsushi Fukui
CPC classification number: H01M4/525 , C01G53/42 , H01M4/364 , H01M4/366 , H01M4/505 , H01M4/582 , H01M10/0525 , C01P2002/54 , C01P2004/80 , C01P2006/40 , H01M2004/028
Abstract: Provided is a positive electrode active material including a first lithium oxide represented by Li2+xNi1−yA1yO2−zA2z, where −0.5≤x≤0.3, 0≤y≤0.1, and 0≤z≤0.3. Here, at least one of y and z is not 0. A1 includes at least one selected from the group consisting of Ga, Bi, Ba, Y, Sn, Ca, W, and Ta. A2 includes at least one selected from the group consisting of halogen elements and S.
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公开(公告)号：US12191480B2
公开(公告)日：2025-01-07
申请号：US17604144
申请日：2020-04-24
Inventor： Kosuke Kuroda , Hiroshi Kawada , Atsushi Fukui
Abstract: A positive electrode active material for a secondary battery according to an embodiment contains: a first composite oxide component represented by general formula Liα[LixMnyCozMe(1−x−y−z)]O2 (in the formula, Me is at least one selected from among Ni Fe, Ti, Bi, Nb, W, Mo, and Ta, 0.5
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240162415A1
公开(公告)日：2024-05-16
申请号：US18284686
申请日：2022-03-30
Inventor： Kosuke Kuroda , Youichirou Uka , Koh Masahara , Rina Yamamoto , Tomohiro Harada
CPC classification number: H01M4/364 , H01M4/525 , H01M4/583 , H01M4/623 , H01M2004/028 , H01M4/13 , H01M4/661
Abstract: A disclosed positive electrode for a nonaqueous electrolyte secondary battery includes a positive-electrode current collector and a positive-electrode mixture layer on a surface of the positive-electrode current collector. The positive-electrode mixture layer includes a positive-electrode active material, a conductive material, and binders. The binders include a polyvinylpyrrolidone-based compound and a cellulose derivative.
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公开(公告)号：US12230794B2
公开(公告)日：2025-02-18
申请号：US17604654
申请日：2020-04-16
Inventor： Hiroshi Kawada , Kosuke Kuroda , Atsushi Fukui
Abstract: This lithium transition metal composite oxide, which configures a secondary battery positive electrode active material, is a composite oxide represented by general formula Liα[LixMnyCozMe(1-x-y-z)]O2 (in the formula, Me is at least one species selected from Ni, Fe, Ti, Bi and Nb, and 0.5
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公开(公告)号：US20220376244A1
公开(公告)日：2022-11-24
申请号：US17772409
申请日：2020-10-13
Inventor： Kosuke Kuroda , Mitsuhiro Hibino
IPC: H01M4/525 , H01M4/485 , H01M4/505 , H01M10/0525
Abstract: The positive electrode active material for a secondary battery includes a lithium-transition metal composite oxide. The lithium-transition metal composite oxide is represented by the general formula Liα[LixMnyCozMe(1−x−y−z)]O2 (in the formula, Me is at least one selected from Ni, Fe, Ti, Bi, and Nb, 0.5
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公开(公告)号：US20210296646A1
公开(公告)日：2021-09-23
申请号：US17263670
申请日：2019-02-21
Inventor： Kosuke Kuroda , Hiroshi Kawada , Atsushi Fukui
Abstract: Provided is a positive electrode active material including a first lithium oxide represented by Li2+xNi1−yA1yO2−zA2z, where −0.5≤x≤0.3, 0≤y≤0.1, and 0≤z≤0.3. Here, at least one of y and z is not 0. A1 includes at least one selected from the group consisting of Ga, Bi, Ba, Y, Sn, Ca, W, and Ta. A2 includes at least one selected from the group consisting of halogen elements and S.
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公开(公告)号：US20210288320A1
公开(公告)日：2021-09-16
申请号：US17262482
申请日：2019-02-21
Inventor： Hiroshi Kawada , Kosuke Kuroda , Atsushi Fukui
Abstract: A positive electrode material for secondary batteries, the material including a Li-rich transition metal oxide having a lithium-to-oxygen atomic ratio: Li/O of 0.8 or more, and a dicarboxylic acid and/or an anhydride of the dicarboxylic acid.
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