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1.发明公开公开(公告)号：US20240113294A1
公开(公告)日：2024-04-04
申请号：US18530347
申请日：2023-12-06
Inventor： YUSUKE NISHIO , KAZUYA HASHIMOTO , IZURU SASAKI
IPC: H01M4/525 , H01M4/36 , H01M4/38 , H01M4/485 , H01M10/0562
CPC classification number: H01M4/525 , H01M4/366 , H01M4/382 , H01M4/485 , H01M10/0562 , H01M2004/028
Abstract: The positive electrode active material includes a complex oxide represented by Formula (1): LiNixMe1-xO2 where x satisfies 0.5≤x
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公开(公告)号：US20240088360A1
公开(公告)日：2024-03-14
申请号：US18508275
申请日：2023-11-14
Inventor： KAZUYA HASHIMOTO , YUTA SUGIMOTO , IZURU SASAKI
IPC: H01M4/36 , H01M4/525 , H01M4/62 , H01M10/0562
CPC classification number: H01M4/366 , H01M4/525 , H01M4/62 , H01M10/0562 , H01M2004/028
Abstract: The coated active material of the present disclosure includes an active material and a coating layer coating at least a part of the surface of the active material. The coated active material has a supernatant transmittance of greater than 64% and less than 93%. The supernatant transmittance is a transmittance of light with a wavelength of 550 nm measured for a supernatant liquid obtained by dispersing and precipitating the coated active material in a solvent. The supernatant liquid is placed in a quartz cell with a 10 mm optical path length and devoted to measurement of the transmittance.
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公开(公告)号：US20240079569A1
公开(公告)日：2024-03-07
申请号：US18506170
申请日：2023-11-10
Inventor： KENJI NAGAO , YUTA SUGIMOTO , KAZUYA HASHIMOTO , IZURU SASAKI
IPC: H01M4/36 , H01M4/525 , H01M4/62 , H01M10/0562 , H01M10/42
CPC classification number: H01M4/366 , H01M4/525 , H01M4/62 , H01M10/0562 , H01M10/4235 , H01M2004/028
Abstract: A coated active material including: a positive electrode active material; a second coating layer; and a first coating layer outside the second coating layer, in which a percentage of change from S1 to S2 is −78.0% or greater and −15.0% or less and/or a percentage of change from S3 to S4 is −77.0% or greater and −12.0% or less, where S1 is a sum of dV/dD over a range of pore diameters of 2 nm to 100 nm of the active material coated with the second coating layer; S2 is a sum of dV/dD over a range of pore diameters of 2 nm to 100 nm of the coated active material; S3 is dV/dD at a pore diameter of 3 nm of the active material coated with the second coating layer; and S4 is dV/dD at a pore diameter of 3 nm of the coated active material.
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公开(公告)号：US20240194878A1
公开(公告)日：2024-06-13
申请号：US18588072
申请日：2024-02-27
Inventor： YUTA SUGIMOTO , KAZUYA HASHIMOTO
IPC: H01M4/62 , H01M4/02 , H01M4/36 , H01M10/0525 , H01M10/0562
CPC classification number: H01M4/62 , H01M4/366 , H01M10/0525 , H01M10/0562 , H01M2004/028 , H01M2300/0071 , H01M2300/008 , H01M2300/0091 , H01M2300/0094
Abstract: A positive electrode material includes a positive electrode active material, a first solid electrolyte, and a second solid electrolyte. The first solid electrolyte contains Li, Ti, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li or Ti, and X is at least one selected from the group consisting of F, Cl, Br, and I. A ratio of a volume of the first solid electrolyte to a total volume of the first solid electrolyte and the second solid electrolyte is greater than or equal to 4% and less than or equal to 50%.
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公开(公告)号：US20240079646A1
公开(公告)日：2024-03-07
申请号：US18504122
申请日：2023-11-07
Inventor： KENJI NAGAO , YUTA SUGIMOTO , KAZUYA HASHIMOTO , IZURU SASAKI
IPC: H01M10/0562 , H01M4/131 , H01M4/36 , H01M4/485 , H01M4/525 , H01M10/052
CPC classification number: H01M10/0562 , H01M4/131 , H01M4/366 , H01M4/485 , H01M4/525 , H01M10/052 , H01M2300/008
Abstract: A coated active material includes a positive electrode active material and a coating layer coating at least a portion of a surface of the positive electrode active material. The coating layer includes a first coating layer and a second coating layer. The first coating layer is located outside of the second coating layer. A percentage of change in specific surface area from a specific surface area of the positive electrode active material coated with the second coating layer to a specific surface area of the coated active material is greater than or equal to −62.8% and less than or equal to +3.79%.
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Patent Agency Ranking
公开(公告)号：US20240204247A1
公开(公告)日：2024-06-20
申请号：US18588075
申请日：2024-02-27
Inventor： YUTA SUGIMOTO , KAZUYA HASHIMOTO
IPC: H01M10/0562 , H01M4/02 , H01M4/131 , H01M10/052
CPC classification number: H01M10/0562 , H01M4/131 , H01M10/052 , H01M2004/028 , H01M2300/008 , H01M2300/0094
Abstract: A positive electrode material includes a positive electrode active material, a coating layer, and a second solid electrolyte. The coating layer contains a first solid electrolyte and coats at least a portion of a surface of the positive electrode active material. The first solid electrolyte contains Li, Ti, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li or Ti, and X is at least one selected from the group consisting of F, Cl, Br, and I. The second solid electrolyte is in indirect contact with the positive electrode active material with the coating layer disposed therebetween. A ratio of a volume of the first solid electrolyte to a total volume of the first solid electrolyte and the second solid electrolyte is greater than or equal to 4% and less than or equal to 45%.
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公开(公告)号：US20240162484A1
公开(公告)日：2024-05-16
申请号：US18418288
申请日：2024-01-21
Inventor： YUTA SUGIMOTO , KAZUYA HASHIMOTO
IPC: H01M10/0562 , H01M4/02 , H01M4/58 , H01M10/0525
CPC classification number: H01M10/0562 , H01M4/5825 , H01M10/0525 , H01M2004/028 , H01M2300/0068 , H01M2300/0071
Abstract: A positive electrode material includes a positive electrode active material, a first solid electrolyte, and a second solid electrolyte. The first solid electrolyte contains Li, Zr, M, and X. M is at least one selected from the group consisting of metalloid elements and metal elements other than Li. X is at least one selected from the group consisting of F, Cl, Br, and I. The second solid electrolyte has a different composition than the first solid electrolyte. A ratio of a volume of the first solid electrolyte to a total volume of the first solid electrolyte and the second solid electrolyte is greater than or equal to 3% and less than or equal to 60%.
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公开(公告)号：US20240079571A1
公开(公告)日：2024-03-07
申请号：US18508182
申请日：2023-11-13
Inventor： KAZUYA HASHIMOTO , YUTA SUGIMOTO , IZURU SASAKI
IPC: H01M4/36 , H01M4/525 , H01M4/62 , H01M10/0562
CPC classification number: H01M4/366 , H01M4/525 , H01M4/62 , H01M10/0562 , H01M2004/028
Abstract: A coated active material of the present disclosure includes an active material and a coating layer coating at least a part of the surface of the active material. The coating layer includes a first coating material. The coated active material has a supernatant NV rate of less than 23%, where the supernatant NV rate is a ratio of the NV value of a supernatant liquid to the mass content ratio of the first coating material in a dispersing liquid obtained by dispersing the coated active material in a solvent, and the NV value of the supernatant liquid is a ratio of the mass of a non-volatile component to the mass of the supernatant liquid obtained by precipitating the coated active material by leaving the dispersing liquid to stand.
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公开(公告)号：US20240079570A1
公开(公告)日：2024-03-07
申请号：US18507037
申请日：2023-11-11
Inventor： YUTA SUGIMOTO , KAZUYA HASHIMOTO , AKINOBU MIYAZAKI , KENJI NAGAO , IZURU SASAKI
IPC: H01M4/36 , H01M4/525 , H01M4/62 , H01M10/0562
CPC classification number: H01M4/366 , H01M4/525 , H01M4/62 , H01M10/0562 , H01M2004/028
Abstract: A coated active material includes a positive electrode active material and a coating layer coating at least a portion of a surface of the positive electrode active material. The coating layer includes a first coating layer, which contains a first solid electrolyte, and a second coating layer, which contains a base material. The first coating layer is located outside of the second coating layer. The first solid electrolyte contains Li, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li, and X is at least one selected from the group consisting of F, Cl, Br, and I. A ratio of a specific surface area of the coated active material to a specific surface area of the positive electrode active material coated with the second coating layer is less than or equal to 42%.
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公开(公告)号：US20230197960A1
公开(公告)日：2023-06-22
申请号：US18153354
申请日：2023-01-12
Inventor： IZURU SASAKI , TAKASHI KUBO , KAZUYA HASHIMOTO
IPC: H01M4/62 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0562
CPC classification number: H01M4/62 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/0562 , H01M2004/028
Abstract: A positive-electrode material includes a positive-electrode active material and a coating layer coating at least partially the surface of the positive-electrode active material and containing a first solid electrolyte. The first solid electrolyte is represented by Composition formula (1): Liα1M1β1X1γ1 . . . Formula (1) where, in Composition formula (1), α1, β1, and γ1 are each independently a positive real number, M1 includes calcium, yttrium, and at least one rare-earth element other than yttrium, and X1 includes at least one selected from the group consisting of F, Cl, Br, and I.
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