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公开(公告)号：US20250006895A1
公开(公告)日：2025-01-02
申请号：US18694558
申请日：2022-06-15
Inventor： Shogo Esaki , Ryuichi Natsui , Kensuke Nakura
Abstract: An electrode for secondary batteries according to one embodiment of the present disclosure is provided with a collector and a mixture layer that is arranged on the collector, and is characterized in that: the mixture layer contains an electrode active material that comprises a metal element, a water-insoluble additive and a water-soluble additive; the water-soluble additive contains a polysaccharide; and the particle diameter of the polysaccharide is larger than the particle diameter of the electrode active material.
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Patent Agency Ranking
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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公开(公告)号：US20240208840A1
公开(公告)日：2024-06-27
申请号：US18288487
申请日：2022-04-28
Inventor： Hiroki Saito , Shogo Esaki , Mitsuhiro Hibino
CPC classification number: C01G45/1228 , H01M4/364 , H01M4/505 , C01P2002/20 , C01P2002/70 , C01P2006/40 , H01M2004/028
Abstract: A composite oxide comprising lithium and a transition metal, wherein at least a portion of the composite oxide has a crystal lattice of a hexagonal lattice, and an electron beam diffraction image obtained by irradiating an electron beam from a direction includes a first diffraction spot group and a second diffraction spot group, n being an integer of 1 or more, the first diffraction spot group has a {−3 1 8/n} spot and a {1 2 2/n} spot that appear in correspondence with a period of a unit lattice of the hexagonal lattice, and the second diffraction spot group has six spots that appear between a central {0 0 0} spot and the {−3 1 8/n} spot with a 1/7 period, and six spots that appear between the central {0 0 0} spot and the {1 2 2/n} spot with a 1/7 period.
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公开(公告)号：US20240021813A1
公开(公告)日：2024-01-18
申请号：US18267359
申请日：2021-12-23
Inventor： Shogo Esaki , Ryuichi Natsui , Junko Matsushita , Mitsuhiro Hibino , Kensuke Nakura
IPC: H01M4/525 , H01M4/505 , H01M4/58 , H01M10/0569 , H01M10/0568 , H01M10/0525
CPC classification number: H01M4/525 , H01M4/505 , H01M4/582 , H01M10/0569 , H01M10/0568 , H01M10/0525 , H01M2004/027
Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present invention contains a lithium transition metal composite oxide which is represented by composition formula LixMnyNizTiaMbO2-cFc (wherein M represents at least one element that is selected from among P, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, Bi and Al; 1.0
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公开(公告)号：US20250140863A1
公开(公告)日：2025-05-01
申请号：US18719420
申请日：2022-10-17
Inventor： Shogo Esaki , Mitsuhiro Hibino , Kensuke Nakura
Abstract: Provided are: a secondary battery electrode in which elution of a metal component is suppressed; and a secondary battery using this electrode. This secondary battery comprises a positive electrode and a negative electrode. At least the positive electrode or the negative electrode includes a collector, and a composite layer disposed on a surface of the collector. The composite layer includes an electrode active material containing an elemental metal, a compound having a terminal CN group, an electroconductive material, a water-insoluble additive, and a water-soluble additive. The water-insoluble additive contains a polysaccharide.
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公开(公告)号：US20240304803A1
公开(公告)日：2024-09-12
申请号：US18275333
申请日：2022-02-02
Inventor： Shogo Esaki , Ryuichi Natsui , Junko Matsushita , Mitsuhiro Hibino , Kensuke Nakura
CPC classification number: H01M4/505 , C01G53/50 , C01P2002/52 , C01P2006/40 , H01M2004/028
Abstract: The positive electrode active material for non-aqueous electrolyte secondary batteries which is an example of one embodiment includes a lithium-transition metal composite oxide represented by the compositional formula LixMnyNizSiaMfO2-αFα (in the formula, M is at least one element selected from Na, K, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ge, Sn, Pb, Sc, Ti, V, Cr, Fe, Co, Cu, Zn, Ru, Rh, Re, Pd, Ir, Ag, Bi, Sb, B, Al, Ga, In, P, Zr, Hf, Nb, Mo, and W, x+y+z+a+f≤2+A, 1.0
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