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11.发明申请公开(公告)号：US20220199974A1
公开(公告)日：2022-06-23
申请号：US17522968
申请日：2021-11-10
Inventor： TOSHIYUKI KOJIMA , AKIHIRO HORIKAWA
IPC: H01M4/36 , H01M10/0562 , H01M4/04 , H01M10/0585
Abstract: Positive electrode active material 2 is used for positive electrode layer 20 of all-solid-state battery 100, and contains plural secondary particles 2b in each of which plural primary particles 1a are aggregated. Plural of secondary particles 2b contain impregnation particles, the impregnation particles each being a secondary particle having a region impregnated with solid electrolyte 1 in a gap between plural primary particles 1a. The region impregnated with solid electrolyte 1 is a region in which solid electrolyte 1 is impregnated in a distance of 1 μm or more from an outer periphery of the impregnation particle toward an inside of the impregnation particle.
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公开(公告)号：US20200212499A1
公开(公告)日：2020-07-02
申请号：US16714604
申请日：2019-12-13
Inventor： AKIHIRO HORIKAWA , KAZUFUMI MIYATAKE , MOTOHIRO OKOCHI
IPC: H01M10/0585 , H01M4/13 , H01M4/36 , H01M10/0525
Abstract: An all-solid battery includes a positive-electrode layer having a positive-electrode current collector and a positive-electrode mixture layer, a negative-electrode layer having a negative-electrode current collector and a negative-electrode mixture layer, and a solid electrolyte layer. The positive-electrode mixture layer contains a positive-electrode active material and a solid electrolyte. The solid electrolyte layer is disposed between the positive-electrode mixture layer and the negative-electrode mixture layer. In the positive-electrode mixture layer, the active material volume proportion is larger and the porosity is smaller in a portion closer to the positive-electrode current collector than in a portion far from the positive-electrode current collector.
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公开(公告)号：US20240416381A1
公开(公告)日：2024-12-19
申请号：US18818661
申请日：2024-08-29
Inventor： TOSHIYUKI KOJIMA , AKIHIRO HORIKAWA , SHUZO TSUCHIDA
Abstract: A powder coating device includes first-stage squeegee (11) and second-stage squeegee (12) that adjust a thickness of supplied powder (3), in which first-stage squeegee (11) and second-stage squeegee (12) vibrate at a natural frequency at a frequency from 2 kHz to 300 kHz inclusive, and second-stage squeegee (12) is shifted from first-stage squeegee (11) by a quarter wavelength of the natural frequency in a width direction of powder (3) supplied to a surface of sheet (4).
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公开(公告)号：US20230405632A1
公开(公告)日：2023-12-21
申请号：US18460725
申请日：2023-09-05
Inventor： AKIHIRO HORIKAWA , TOSHIYUKI KOJIMA
CPC classification number: B05C11/042 , B05C19/04
Abstract: A powder coating device including: a powder feeder that feeds powder onto a surface of a base material; a squeegee that is disposed to form a gap with respect to the base material and has a surface in contact with the powder fed onto the surface of the base material, the squeegee being configured to adjust a thickness of a powder layer composed of the powder fed onto the surface of the base material by the powder feeder and move relative to the base material in a state where an inclination angle of the surface of the squeegee with respect to a normal direction of the surface of the base material is changeable; a powder inclination angle detector that detects an angle between a surface of the powder layer and the base material; anda first controller that adjusts the inclination angle of the surface of the squeegee in contact with the powder based on the inclination angle of the powder layer detected by the powder inclination angle detector.
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Patent Agency Ranking
15.发明申请公开(公告)号：US20220080434A1
公开(公告)日：2022-03-17
申请号：US17396645
申请日：2021-08-06
Inventor： MOTOHIRO OKOCHI , AKIHIRO HORIKAWA , TOSHIYUKI KOJIMA
Abstract: A powder layer composite includes a base and a powder layer having a thickness of 100 μm or less and disposed on the base. An average of a total value of a number of powder aggregates having a long diameter of 500 μm or greater and a number of pinholes having a long diameter of 500 μm or greater, in any of a plurality of different regions of 20 mm×20 mm on a surface of the powder layer, is 0.2 pieces/cm2 or less.
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公开(公告)号：US20200243914A1
公开(公告)日：2020-07-30
申请号：US16739110
申请日：2020-01-09
Inventor： SHUZO TSUCHIDA , KAZUFUMI MIYATAKE , AKIHIRO HORIKAWA
IPC: H01M10/0585 , H01M10/0525
Abstract: A solid-state battery that exhibits improved battery performance includes: a positive-electrode collector; a negative-electrode collector; a positive electrode layer formed on the positive-electrode collector and containing a positive-electrode active material and a solid electrolyte; a negative electrode layer formed on the negative-electrode collector and containing a negative-electrode active material and a solid electrolyte; and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer and containing a solid electrolyte. At least one of the solid electrolyte and the solid electrolyte partly represents a porous solid electrolyte.
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公开(公告)号：US20200212498A1
公开(公告)日：2020-07-02
申请号：US16706629
申请日：2019-12-06
Inventor： YOSHIRO KITAMURA , KATSUJI SUMIMOTO , AKIHIRO HORIKAWA
IPC: H01M10/0585 , H01M10/0525 , H01M10/0562
Abstract: An all-solid battery is formed by laminating a first current collector, a positive-electrode layer, a solid electrolyte layer, a negative-electrode layer, and a second current collector in this order. The positive-electrode fine particle layer contains positive-electrode active material fine particles having a particle diameter smaller than that of the positive-electrode active material and is formed on a side surface of the positive-electrode layer. The negative-electrode fine particle layer contains negative-electrode active material fine particles having a particle diameter smaller than that of the negative-electrode active material and is formed on a side surface of the negative-electrode layer.
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公开(公告)号：US20200212479A1
公开(公告)日：2020-07-02
申请号：US16714593
申请日：2019-12-13
Inventor： TOSHIYUKI KOJIMA , AKIHIRO HORIKAWA , MOTOHIRO OKOCHI , KAZUFUMI MIYATAKE
IPC: H01M10/0562 , H01M4/36
Abstract: An all-solid battery includes a positive-electrode layer, a negative-electrode layer, and a solid electrolyte layer. The positive-electrode layer includes a positive-electrode current collector, a positive-electrode bonding layer that contains at least a conductive agent comprising non-metal and is formed on the positive-electrode current collector, and a positive-electrode mixture layer that contains at least a positive-electrode active material and a solid electrolyte and is formed on the positive-electrode bonding layer. The negative-electrode layer includes a negative-electrode current collector and a negative-electrode mixture layer that contains at least a negative-electrode active material and the solid electrolyte. The solid electrolyte layer is disposed between the positive-electrode mixture layer and the negative-electrode mixture layer and contains the solid electrolyte. A concentration of a binder contained in the positive-electrode mixture layer is less than or equal to 100 ppm and a concentration of a solvent contained in the positive-electrode mixture layer is less than or equal to 50 ppm.
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19.发明申请公开(公告)号：US20200212435A1
公开(公告)日：2020-07-02
申请号：US16719962
申请日：2019-12-18
Inventor： MOTOHIRO OKOCHI , AKIHIRO HORIKAWA , SHUZO TSUCHIDA
IPC: H01M4/36 , H01M10/0565
Abstract: A negative electrode active substance is used for a negative electrode layer of an all-solid battery and contains a plurality of secondary particles. The plurality of secondary particles contain impregnated particles which are secondary particles having a polymer solid electrolyte region impregnated with the polymer solid electrolyte therein and an active material region.
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