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公开(公告)号：US20220149354A1
公开(公告)日：2022-05-12
申请号：US17431907
申请日：2020-02-26
发明人： Jun OMURA , Daisuke WASHIDA , Tetsuya MITSUMOTO , Hitohiko IDE , Yasuo KOMODA , Yasuhiro SHIBATA , Yasunori TABIRA , Tomoyuki MAEDA
IPC分类号： H01M4/36 , H01M10/0562
摘要： An active material is provided for use in a solid-state battery. The active material exhibits at least one peak in the range of 0.145 to 0.185 nm and at least one peak in the range of 0.280 to 0.310 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure thereof. In the particle size distribution, by volume, of the active material obtained through a particle size distribution measurement by laser diffraction scattering method, the ratio of the absolute value of the difference between the mode diameter of the active material and the D10 of the active material (referred to as the “mode diameter” and the “D10” respectively) to the mode diameter in percentage terms, (|mode diameter−D10|/mode diameter)×100, satisfies 0%
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2.发明公开公开(公告)号：US20230365784A1
公开(公告)日：2023-11-16
申请号：US18025831
申请日：2021-09-14
发明人： Toshihiro HOSOI , Yoshihiro YONEDA , Tetsuro SATO , Hitohiko IDE , Hiromi MATSUURA , Kouichi KAWARATANI
CPC分类号： C08K9/02 , B32B15/20 , C08K3/22 , C08K3/30 , B32B15/01 , B32B2250/02 , B32B2264/1022 , B32B2264/403 , C08K2201/005 , C08K2003/3045 , B32B2264/104 , B32B2307/206 , B32B2307/748 , B32B2457/16 , B32B2264/302 , B32B2264/303 , B32B2264/305
摘要： A resin composition is provided including: coated particles, each including a core containing a metal oxide and a coating layer containing an aluminum hydrous oxide and provided on a surface of the core; and a resin. The metal oxide is represented by MxOy, where M represents at least one element selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, Ca, and Bi, and x and y each represent a number determined from a stoichiometric ratio according to the valence of the metal element M. The resin composition has an atomic ratio Al/(M+Al) of 0.05 or more and 0.7 or less, as determined by XPS for the particles contained in the resin composition.
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公开(公告)号：US20170317348A1
公开(公告)日：2017-11-02
申请号：US15654745
申请日：2017-07-20
IPC分类号： H01M4/38 , H01M4/134 , C01B33/02 , H01M10/0525
CPC分类号： H01M4/386 , C01B33/02 , H01M4/134 , H01M4/38 , H01M10/0525
摘要： A negative electrode active material for nonaqueous secondary batteries is disclosed. The active material contains a silicon solid solution having one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon as a solute element. The solute element is present more on the crystal grain boundaries of the silicon solid solution than inside the grains.
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公开(公告)号：US20240139804A1
公开(公告)日：2024-05-02
申请号：US18282269
申请日：2022-02-02
发明人： Mizuki AKIZAWA , Hitohiko IDE , Takafumi SASAKI
CPC分类号： B22F1/0551 , B22F1/056 , B22F9/24 , C22C9/00 , B22F2301/10 , B22F2304/058 , B22F2998/10 , B22F2999/00
摘要： Copper particles are provided mainly containing a copper element. In the copper particles, a ratio (S1/B) of a first crystallite size S1 to a particle size B is 0.23 or less, where the first crystallite size is obtained using Scherrer equation from a full width at half maximum of a peak derived from (111) plane of copper in X-ray diffraction measurement, and the particle size is calculated from a BET specific surface area. In the copper particles, a ratio (S1/S2) of the first crystallite size S1 to a second crystallite size S2 is 1.35 or less, where the second crystallite size is obtained using Scherrer equation from a full width at half maximum of a peak derived from (220) plane of copper in X-ray diffraction measurement. A method for manufacturing the copper particles is also provided.
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公开(公告)号：US20230074796A1
公开(公告)日：2023-03-09
申请号：US17987974
申请日：2022-11-16
发明人： Jun OMURA , Daisuke WASHIDA , Tetsuya MITSUMOTO , Hitohiko IDE , Yasuo KOMODA , Yasuhiro SHIBATA , Yasunori TABIRA , Tomoyuki MAEDA
IPC分类号： H01M4/36 , H01M10/0562
摘要： An active material is provided for use in a solid-state battery. The active material exhibits at least one peak in the range of 0.145 to 0.185 nm and at least one peak in the range of 0.280 to 0.310 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure thereof. In the particle size distribution, by volume, of the active material obtained through a particle size distribution measurement by laser diffraction scattering method, the ratio of the absolute value of the difference between the mode diameter of the active material and the D10 of the active material (referred to as the “mode diameter” and the “D10” respectively) to the mode diameter in percentage terms, (|mode diameter - D10 / mode diameter) x 100, satisfies 0%
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公开(公告)号：US20210288307A1
公开(公告)日：2021-09-16
申请号：US17258678
申请日：2019-07-23
发明人： Yuki NAKAYAMA , Daisuke WASHIDA , Hitohiko IDE
IPC分类号： H01M4/131 , H01M4/36 , H01M10/0525
摘要： The present invention provides a positive electrode active material with which an increase in the interface resistance between the positive electrode active material and a sulfide solid electrolyte over time can be suppressed and also the interface resistance is low. The positive electrode active material of the present invention includes particles that have core particles containing a complex oxide of lithium and a metal element and a coating layer arranged on the surface of the core particles, and is used in a solid-state battery containing a sulfide solid electrolyte. The coating layer is composed of an oxide containing Li and M, where M represents one or two or more elements selected from the group consisting of B, Nb, Ti, Zr, Ta, Zn, W, and Al, or M is B when M represents one element. The molar ratio of Li/M on the surface of the coating layer, as obtained by X-ray photoelectron spectroscopy, is from 0.85 to 3.95.
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公开(公告)号：US20210234158A1
公开(公告)日：2021-07-29
申请号：US17056339
申请日：2019-09-27
发明人： Daisuke WASHIDA , Hitohiko IDE , Tetsuya MITSUMOTO , Jun OMURA , Yasuo KOMODA , Yasuhiro SHIBATA , Yasunori TABIRA , Tomoyuki MAEDA
IPC分类号： H01M4/36 , H01M4/62 , H01M10/0562 , H01M10/0585 , H01M4/525 , H01M4/505
摘要： Disclosed is an active material that can reduce an interface resistance with a sulfide solid electrolyte and improve the battery performance. The active material exhibits at least one peak in the range of from 0.145 nm to 0.185 nm and at least one peak in the range of from 0.28 nm to 0.31 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure of the active material. The active material is for use in a solid-state battery. The active material preferably has a core particle, and a coating layer located on the surface of the core particle.
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