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公开(公告)号：US11621424B2
公开(公告)日：2023-04-04
申请号：US17042092
申请日：2019-04-24
Inventor： Hiroki Hayashi , Takumi Yamaguchi , Nao Matsumura , Yasuyuki Ito , Motohiro Sakata , Hideo Sakata
IPC: H01M4/133 , H01M4/137 , H01M4/1399 , H01M4/66 , H01M4/02 , H01G11/28 , H01G11/50 , H01M4/04 , H01M50/46
Abstract: An electrochemical device of the present invention includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The positive electrode includes a positive current collector containing aluminum, a positive electrode material layer containing a conductive polymer, and an aluminum oxide layer disposed on a surface of the positive current collector. The aluminum oxide layer contains fluorine.
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公开(公告)号：US20230029282A1
公开(公告)日：2023-01-26
申请号：US17786940
申请日：2020-12-22
Inventor： Kohei Hara , Tooru Matsui , Hirotetsu Suzuki , Motohiro Sakata
IPC: H01M50/409 , H01M10/0587 , H01M10/0565
Abstract: This separator for nonaqueous electrolyte secondary batteries contains a polymer compound and a solid electrolyte, and has a pore volume of 0.06 cm3/gor less.
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公开(公告)号：US11011769B2
公开(公告)日：2021-05-18
申请号：US16331666
申请日：2017-09-05
Inventor： Motohiro Sakata , Takeshi Minamiura , Shinichiro Imura , Hitoshi Ishimoto , Kazuya Yamasaki , Chiho Nobumori , Yukihiro Shimasaki , Tsutomu Fujii
IPC: H01M8/24 , H01M8/22 , H01M8/1004 , H01M4/86 , H01M4/66 , H01M8/0234 , H01M8/0239 , H01M8/0245 , H01M8/1018
Abstract: Provided is a fuel cell catalyst layer including: a fibrous carbon material; catalyst particles; a particulate carbon material; and a proton-conductive resin, wherein a region A including at least the fibrous carbon material in a state of an agglomerated body and a region B including at least the catalyst particles, the particulate carbon material, and the proton-conductive resin are formed, the region A being disposed in an island form in the region B.
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公开(公告)号：US09799455B2
公开(公告)日：2017-10-24
申请号：US14439193
申请日：2013-11-01
Inventor： Chiho Nobumori , Motohiro Sakata , Mitsuhiro Fujita
CPC classification number: H01G9/048 , H01G9/02 , H01G9/042 , H01G9/145 , H01G11/24 , H01G11/26 , Y02E60/13 , Y02T10/7022
Abstract: A capacitor electrode includes a conductive base member and an electrode part electrically connected to the base member. The electrode part contains carbon particles of a first carbon material capable of adsorbing and desorbing ions. The electrode part further contains voids including first voids with diameters of not less than 0.2 μm and not more than 1.0 μm, and second voids with diameters of not less than 0.05 μm and less than 0.2 μm. The value of (VA×VA)/(VB×M) is greater than 0.022, where VA is the sum of the volumes of the first voids, VB is the sum of the volumes of the second voids, and M is the volume of the electrode part per unit weight of the electrode part.
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公开(公告)号：US20240396018A1
公开(公告)日：2024-11-28
申请号：US18695164
申请日：2022-09-02
Inventor： Akihiro Taniguchi , Motohiro Sakata , Kaoru Inoue , Kensuke Nakura
Abstract: A negative electrode for secondary batteries according to one embodiment of the present disclosure comprises a negative electrode collector and a negative electrode mixture layer that is arranged on the negative electrode collector. This negative electrode for secondary batteries is characterized in that: the negative electrode mixture layer comprises a negative electrode active material that contains a carbon material and an Si-based material; the negative electrode mixture layer internally has a plurality of voids; the pore size distribution of the negative electrode mixture layer as determined by a mercury intrusion method has two peak values R1 and R2; and the plurality of voids have an aspect ratio of 2 or more, the aspect ratio being obtained by dividing the length in the major axis direction by the length in the minor axis direction.
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Patent Agency Ranking
公开(公告)号：US20240363847A1
公开(公告)日：2024-10-31
申请号：US18580806
申请日：2022-07-01
Inventor： Saifullah Badar , Hirotetsu Suzuki , Motohiro Sakata
CPC classification number: H01M4/48 , H01M2004/021 , H01M2004/027
Abstract: A negative electrode active material for a secondary battery includes Si-containing particles, wherein the Si-containing particles include a silicon compound phase, a silicon phase dispersed in the silicon compound phase, and a silicon nitride phase dispersed in the silicon. compound phase, and the silicon compound phase is at least one of a silicon oxide phase and a silicate phase.
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公开(公告)号：US20240347718A1
公开(公告)日：2024-10-17
申请号：US18292653
申请日：2022-07-27
Inventor： Keisuke Asaka , Motohiro Sakata
CPC classification number: H01M4/525 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode for a secondary battery including a positive electrode current collector with a positive electrode mixture layer provided its surface, wherein the positive electrode mixture layer includes first positive electrode active material particles having a first average particle size D1 and second positive electrode active material particles having a second average particle size D2, D1>D2 is satisfied, and D1 is 10 μm or more, the second positive electrode active material particles are included more in a second region than in the first region, a first region is nearer to the positive electrode current collector than the second region, 50% or more of the surface of the positive electrode current collector is a pressed-in region, and the pressed-in region is a region where the first positive electrode active material particles are pressed in to a depth of 10% or more of D1.
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公开(公告)号：US12068108B2
公开(公告)日：2024-08-20
申请号：US17293525
申请日：2019-12-02
Inventor： Motohiro Sakata , Nao Matsumura , Masatoshi Takeshita
CPC classification number: H01G11/48 , H01G11/52 , H01G11/54 , H01M4/608 , H01M2004/028
Abstract: An electrochemical device electrode includes a conductive polymer as an active material. The conductive polymer has a grain shape, and an intensity distribution pattern obtained by X-ray diffraction measurement with respect to the conductive polymer has a first peak in which a diffraction angle 2θ ranges from 18° to 21°, inclusive, and a second peak in which a diffraction angle 2θ ranges from 24° to 26°, inclusive.
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公开(公告)号：US20240204179A1
公开(公告)日：2024-06-20
申请号：US18555821
申请日：2022-04-12
Inventor： Tooru Matsui , Keisuke Asaka , Hirotetsu Suzuki , Motohiro Sakata , Kensuke Nakura
IPC: H01M4/36 , H01M4/62 , H01M10/0525
CPC classification number: H01M4/366 , H01M4/623 , H01M4/625 , H01M10/0525
Abstract: Provided is a non-aqueous electrolyte secondary battery with enhanced discharging performance. A non-aqueous electrolyte secondary battery according to one aspect of the present disclosure is provided with an electrode having: a current collector; and a mixture layer that is formed on a surface of the current collector and that contains an active material, a conducting agent, and a binding agent. The mixture layer contains a first mixture layer facing the current collector and a second mixture layer laminated on a surface of the first mixture layer. A short-circuit resistance R1 of the first mixture layer and a short-circuit resistance R2 of the second mixture layer satisfy the relationship R1
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20.发明公开公开(公告)号：US20240186530A1
公开(公告)日：2024-06-06
申请号：US18285557
申请日：2022-04-12
Inventor： Tooru Matsui , Keisuke Asaka , Hirotetsu Suzuki , Motohiro Sakata , Kensuke Nakura
IPC: H01M4/74 , H01M4/02 , H01M4/04 , H01M4/80 , H01M10/052 , H01M10/0587
CPC classification number: H01M4/747 , H01M4/0404 , H01M4/0435 , H01M4/806 , H01M10/0587 , H01M2004/021 , H01M10/052
Abstract: Provided is a nonaqueous electrolyte secondary battery having improved discharge characteristics. A nonaqueous electrolyte secondary battery according to one aspect of the present disclosure comprises an electrode including a current collector and a mixture layer that is formed on a surface of the current collector and that contains an active material. The current collector includes an electron conductive layer having a gap on the surface in contact with the mixture layer, and an electrolytic solution is present inside the electron conductive layer.
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