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公开(公告)号：US20230411682A1
公开(公告)日：2023-12-21
申请号：US18460633
申请日：2023-09-04
Inventor： SHUZO TSUCHIDA , AMI OKABE , AKIHIRO HORIKAWA
IPC: H01M10/0562 , H01M4/04
CPC classification number: H01M10/0562 , H01M4/0404 , H01M2004/028
Abstract: An all-solid battery has a structure in which a cathode current collector, a cathode layer that contains cathode active materials constituted by a plurality of particles and solid electrolytes constituted by a plurality of particles, a solid-electrolyte layer that contains solid electrolytes, an anode layer that contains anode active materials and solid electrolytes, and an anode current collector are stacked in this order. The cathode layer includes a region where the plurality of particles constituting the solid electrolytes are filled or continuously densely packed in a sliced surface in a case where an end of the cathode layer is sliced, and a distance between two adjacent particles having a positional relationship across the region among the plurality of particles constituting the cathode active material is 2 times or more than an average particle size of the cathode active materials.
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公开(公告)号：US20230093941A1
公开(公告)日：2023-03-30
申请号：US17929752
申请日：2022-09-06
Inventor： TOSHIYUKI KOJIMA , AKIHIRO HORIKAWA , SHUZO TSUCHIDA
IPC: H01M4/04
Abstract: A powder layer composite includes a current collector, and a powder layer formed on the current collector and having a film thickness of 50 μm or more. The powder layer contains a powder made of at least one type of particle material. A concentration of a solvent contained in the powder layer is 50 ppm or less. A variation in a weight per unit area of the powder layer is 10% or less in an optional region with 30 mm×30 mm in the powder layer.
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公开(公告)号：US20220200044A1
公开(公告)日：2022-06-23
申请号：US17522964
申请日：2021-11-10
Inventor： SHUZO TSUCHIDA , AKIHIRO HORIKAWA , TAKESHI KOIWASAKI
IPC: H01M10/0562 , H01M10/0585
Abstract: All-solid-state battery 100 has a structure in which positive electrode current collector 6, positive electrode layer 20 containing positive electrode active material 3 and solid electrolyte 1, solid electrolyte layer 10 containing solid electrolyte 2, negative electrode layer 30 containing negative electrode active material 4 and solid electrolyte 5, and negative electrode current collector 7 are stacked in this order. Solid electrolyte 2 contains first material 21 and second material 22 having an ionic conductivity lower than an ionic conductivity of first material 21. First material 21 includes first particles 40, and at least a part of a surface of first particles 40 is covered with second material 22.
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公开(公告)号：US20190103613A1
公开(公告)日：2019-04-04
申请号：US16137075
申请日：2018-09-20
Inventor： SHUZO TSUCHIDA , RYOUHEI SEKI , YASUHIRO UEYAMA
IPC: H01M4/92 , H01M4/86 , H01M8/1058 , H01M8/1004
Abstract: A catalyst layer, includes: a carrier; metal particles located over the carrier; an underlayer located on the carrier; and an ionomer-based layer located over the underlayer, wherein the underlayer includes a polymer material, and covers at least parts of the metal particles, and the ionomer-based layer includes a proton-conducting resin. A fuel cell electrode includes the catalyst layer, and a fuel cell including the above catalyst layer. A method for producing a catalyst layer, includes: bringing at least one first solution including a polymer material into contact with a metal-particle-supported carrier to form an underlayer; and bringing a second solution including a proton-conducting resin into contact with the metal-particle-supported carrier to coat said metal-particle-supported carrier with the proton-conducting resin.
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公开(公告)号：US20220200045A1
公开(公告)日：2022-06-23
申请号：US17529340
申请日：2021-11-18
Inventor： SHUZO TSUCHIDA , AKIHIRO HORIKAWA
IPC: H01M10/0562 , H01M4/36 , H01M10/0525 , H01M4/139 , H01M4/04 , H01M4/62
Abstract: All-solid-state battery 100 has a structure in which positive electrode current collector 7, positive electrode layer 20 containing positive electrode active material 3, solid electrolyte 1 including a plurality of first particles having a first average particle diameter, and solid electrolyte 2 composed of a plurality of second particles having second average particle diameter larger than the first average particle diameter, solid electrolyte layer 10 containing solid electrolyte 6, negative electrode layer 30 containing negative electrode active material 4 and solid electrolyte 5, and negative electrode current collector 8 are stacked in this order, in which at least a part of solid electrolyte 1 serves as a cover layer 11 covering at least a part of a surface of positive electrode active material 3, and at least one of the plurality of second particles are partially embedded in cover layer 11.
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Patent Agency Ranking
公开(公告)号：US20220085381A1
公开(公告)日：2022-03-17
申请号：US17402613
申请日：2021-08-16
Inventor： AMI OKABE , SHUZO TSUCHIDA , AKIHIRO HORIKAWA
Abstract: An electrode includes a collector, and an active material mixture layer located on the collector and containing first particles, second particles, first active material particles, and second active material particles. The active material mixture layer includes a first mixture layer located on the collector and containing the first particles and the first active material particles, and a second mixture layer located on the first mixture layer and containing the second particles and the second active material particles. The active material mixture layer has a boundary in which the first active material particles and the second active material particles are in contact with each other in a discontinuous state at least in part, in a cross-sectional view of the electrode.
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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：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：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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公开(公告)号：US20240421358A1
公开(公告)日：2024-12-19
申请号：US18817288
申请日：2024-08-28
Inventor： SHUZO TSUCHIDA , TOSHIYUKI KOJIMA
IPC: H01M10/0585 , H01M4/02 , H01M4/133 , H01M4/1393 , H01M4/36 , H01M4/62
Abstract: All-solid-state battery (100) has a structure in which positive electrode current collector (7), positive electrode layer (20) including positive electrode active material (2) and solid electrolyte (1), solid electrolyte layer (10) including solid electrolyte (5), negative electrode layer (30) including negative electrode active material (3) and solid electrolyte (4), and negative electrode current collector (8) are stacked in this order. Negative electrode active material (3) includes a plurality of flat active material particles having a structure of a plurality of stacked pieces of graphite. Negative electrode layer (30) has, in a cross section, active material orientation region (14) including two or more of a plurality of flat active material particles that are adjacently oriented. The major axis of each of the two or more flat active material particles has an angle of 0° or more and 30° or less with respect to the thickness direction of negative electrode layer (30).
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