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公开(公告)号：US20230335790A1
公开(公告)日：2023-10-19
申请号：US18337789
申请日：2023-06-20
Inventor： EIICHI KOGA
IPC: H01M10/0562 , H01M50/55 , H01M50/204
CPC classification number: H01M10/0562 , H01M50/55 , H01M50/204 , H01M10/052
Abstract: A battery includes: a power generation element; a first insulation film; an electrode terminal; and a counter electrode terminal. The power generation element includes an electrode main surface, a counter electrode main surface, and a side surface. The first insulation film includes a first side surface covering portion and a first main surface covering portion. The electrode terminal includes a second side surface covering portion that covers the first side surface covering portion and an electrode contact portion that is connected with the second side surface covering portion and is joined to the electrode main surface. The counter electrode terminal is joined to the counter electrode main surface. The electrode terminal further includes a second main surface covering portion that is connected with the second side surface covering portion and covers the first main surface covering portion.
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公开(公告)号：US20220416310A1
公开(公告)日：2022-12-29
申请号：US17929773
申请日：2022-09-06
Inventor： KAZUYOSHI HONDA , AKIRA KAWASE , EIICHI KOGA , TSUTOMU KOSHIZUKA , TAKESHI YAMASAKI , MASATOSHI NAKAMURA
IPC: H01M10/0585 , H01M10/48
Abstract: A method for manufacturing a laminated battery is a method for manufacturing a laminated battery in which a plurality of unit battery cells each having a negative-electrode layer, a positive-electrode layer are laminated, and a solid electrolyte layer located between the negative-electrode layer and the positive-electrode layer. The method includes laminating the plurality of unit battery cells and collectively compressing, in a direction of laminating, the plurality of unit cells laminated in the laminating. In the laminating, the plurality of unit battery cells are laminated in such an arrangement that two unit battery cells located at both ends in the direction of laminating are both lower in degree of compression than a unit battery cell located between the two unit battery cells.
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公开(公告)号：US20220077546A1
公开(公告)日：2022-03-10
申请号：US17524743
申请日：2021-11-12
Inventor： EIICHI KOGA
IPC: H01M50/512 , H01M50/186 , H01M50/524
Abstract: The present disclosure provides a parallel-connected battery with both high output and high reliability. A battery according to the present disclosure includes a plurality of solid-state battery cells and a connection layer disposed between the plurality of solid-state battery cells. Each of the plurality of solid-state battery cells includes a structure in which a positive-electrode current collector, a positive-electrode active material layer, a solid electrolyte layer containing a solid electrolyte, a negative-electrode active material layer, and a negative-electrode current collector are laminated in this order. The plurality of solid-state battery cells are electrically connected in parallel, and the negative-electrode current collectors of two adjacent solid-state battery cells are laminated via the connection layer.
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公开(公告)号：US20210391617A1
公开(公告)日：2021-12-16
申请号：US17460311
申请日：2021-08-30
Inventor： KAZUYOSHI HONDA , AKIRA KAWASE , EIICHI KOGA , KOUJI NISHIDA , NOBORU MASUDA , TAKESHI YAMASAKI
IPC: H01M50/186 , H01M10/0525 , H01M50/54
Abstract: A laminated battery includes battery cells which are laminated and a current collecting lead. Each of the battery cells has a structure in which a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector are laminated in this order. The battery cells include first and second battery cells adjacent to each other. At least the second battery cell has a side surface inclined with respect to a laminating direction of the battery cells. The first battery cell has a surface facing the second battery cell and including an exposed surface not in contact with the second battery cell. At least part of the exposed surface overlaps at least part of the side surface of the second battery cell viewed from the laminating direction. The current collecting lead is connected to the exposed surface.
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公开(公告)号：US20210391599A1
公开(公告)日：2021-12-16
申请号：US17460310
申请日：2021-08-30
Inventor： KAZUYOSHI HONDA , EIICHI KOGA , AKIRA KAWASE , NOBORU MASUDA , TAKESHI YAMASAKI
IPC: H01M10/0585 , H01M50/531
Abstract: A laminated battery includes a plurality of battery cells which are laminated and a current collecting lead. Each of the plurality of battery cells has a structure in which a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector are laminated in this order. The plurality of battery cells include first and second battery cells adjacent to each other. The first battery cell has a surface that faces the second battery cell and includes an exposed surface not in contact with the second battery cell. At least part of the exposed surface does not overlap the second battery cell when viewed from a laminating direction of the battery cells. The current collecting lead is connected to the exposed surface.
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Patent Agency Ranking
公开(公告)号：US20210358663A1
公开(公告)日：2021-11-18
申请号：US17286909
申请日：2019-12-02
Inventor： YOSHIKO HIGASHI , EIICHI KOGA
Abstract: A varistor includes an effective layer having first and second surfaces opposite to each other, a first ineffective layer stacked on the first surface of the effective layer, a second ineffective layer stacked on the second surface of the effective layer, and an external electrode. The effective layer includes a ceramic layer having a polycrystalline structure including crystal particles exhibiting voltage nonlinear characteristics, and internal electrodes stacked alternately on the ceramic layer. The thickness of the second ineffective layer is equal to or more than 1.1 times a thickness of the first ineffective layer and equal to or smaller than 6 times the thickness of the first ineffective layer. This varistor has a small size and excellent surge resistance.
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公开(公告)号：US20210305579A1
公开(公告)日：2021-09-30
申请号：US17343631
申请日：2021-06-09
Inventor： EIICHI KOGA
IPC: H01M4/64 , H01M50/531 , H01M10/0562 , H01M10/0585 , H01M50/543
Abstract: A battery according to the present disclosure includes a plurality of cells that are electrically connected in parallel. Each of the plurality of cells includes a positive electrode layer, a negative electrode layer, a current collector that is in contact with the positive electrode layer or the negative electrode layer, and an electrolyte layer disposed between the positive electrode layer and the negative electrode layer. A side surface of the current collector includes an exposed portion exposed from the electrolyte layer and a shielded portion shielded by the electrolyte layer, and an area of the shielded portion is larger than an area of the exposed portion.
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公开(公告)号：US20250087746A1
公开(公告)日：2025-03-13
申请号：US18961151
申请日：2024-11-26
Inventor： EIICHI KOGA
IPC: H01M10/0562 , C01F7/54
Abstract: The solid electrolyte material of the present disclosure is a solid electrolyte material containing Li, Al, and F, comprising an amorphous substance containing Li, Al, and F. The solid electrolyte material of the present disclosure may further comprise a crystalline phase containing Li, Al, and F. The solid electrolyte material production method of the present disclosure comprises: (A) synthesizing a compound comprising a crystalline phase containing Li, Al, and F; and (B) performing a treatment to disturb the crystal of the compound. The compound may be mechanochemically treated in the step (B).
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公开(公告)号：US20250070225A1
公开(公告)日：2025-02-27
申请号：US18946944
申请日：2024-11-14
Inventor： NORIYUKI UCHIDA , EIICHI KOGA
IPC: H01M10/04
Abstract: A battery including: a battery cell including a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode; and a first pressing member in a plate shape provided above the battery cell to press the battery cell, in which the first pressing member includes a first surface in a planar shape that faces the battery cell, and a second surface in a convex shape that opposes the first surface.
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公开(公告)号：US20240274860A1
公开(公告)日：2024-08-15
申请号：US18641248
申请日：2024-04-19
Inventor： KAZUYOSHI HONDA , AKIRA KAWASE , KAZUHIRO MORIOKA , EIICHI KOGA , KOICHI HIRANO
IPC: H01M10/04 , H01M10/0585 , H01M50/209 , H01M50/51 , H01M50/519
CPC classification number: H01M10/0436 , H01M10/0585 , H01M50/209 , H01M50/51 , H01M50/519
Abstract: A battery includes: a power generation element including at least one battery cell each having a laminated structure of a positive electrode layer, a negative electrode layer, and a solid electrolyte layer located between the positive electrode layer and the negative electrode layer, in which the at least one battery cell is each provided with a through hole penetrating in a direction of lamination, a sectional area of the through hole in the positive electrode layer in a direction perpendicular to the direction of lamination is larger than a sectional area of the through hole in the negative electrode layer in the direction perpendicular to the direction of lamination, and an inner wall of the through hole is inclined with respect to the direction of lamination.
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