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1. 发明公开

EP4109584A1 BATTERY 审中-公开
公开(公告)号：EP4109584A1
公开(公告)日：2022-12-28
申请号：EP20919835.7
申请日：2020-12-22
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KOGA Eiichi
IPC分类号： H01M4/13 , H01M4/66 , H01M4/70 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M50/50 , H01M50/572
摘要： A battery of the present disclosure includes a first solid-state battery cell and a buffer layer. The first solid-state battery cell includes a positive electrode, a negative electrode and a solid electrolyte layer located between the positive electrode and the negative electrode. The positive electrode or the negative electrode has a current collector. The buffer layer is in contact with a face of the current collector opposite to the solid electrolyte layer. The buffer layer includes a PTC material, a resin and a first metal. The first metal is at least one selected from the group consisting of Sn, Cu, Al, Mg and Zn.

2. 发明公开

EP4033582A1 BATTERY 无效
公开(公告)号：EP4033582A1
公开(公告)日：2022-07-27
申请号：EP20866190.0
申请日：2020-02-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KOGA Eiichi
IPC分类号： H01M10/0585 , H01M4/70 , H01M10/052 , H01M10/0562
摘要： The present disclosure provides a battery with improved reliability. The battery (1000) according to the present disclosure includes an electrode layer (100), a counter electrode layer (200) disposed to face the electrode layer (100), and a solid electrolyte layer (300) located between the electrode layer (100) and counter electrode layer (200). The electrode layer (100) includes an electrode current collector (120) and an electrode active material layer (110) located between the electrode current collector (120) and the solid electrolyte layer (300) and having an area smaller than those of the electrode current collector (120) and the solid electrolyte layer (300) in plan view. In plan view, when a region where the electrode active material layer (110) is located is designated as a first region (10) and a region outside the first region (10) is designated as a second region (20), the solid electrolyte layer (300) covers the outside of the electrode active material layer (110) in plan view and is in contact with the electrode current collector (120) in the second region (20), and the electrode current collector (120) or the solid electrolyte layer (300) includes at least one structural defect portion (700) in a line shape in plan view in the second region (20).

3. 发明公开

EP4339969A2 SOLID ELECTROLYTE, PRODUCTION METHOD FOR SOLID ELECTROLYTE, AND BATTERY 审中-实审
公开(公告)号：EP4339969A2
公开(公告)日：2024-03-20
申请号：EP22807059.5
申请日：2022-02-18
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KOGA Eiichi
IPC分类号： H01B1/06 , H01B13/00 , H01M10/05 , H01M10/0562
摘要： A solid electrolyte of the present disclosure contains Li, M, and X, and, in the solid electrolyte, the coefficient of variation of the M content is 10 or less, and the coefficient of variation of the X content is 15 or less. A method for producing a solid electrolyte according to the present disclosure includes (A) synthesizing a halide containing Li, M, and X, (B) pulverizing the halide, and (C) heat-treating the halide, and the (A), the (B), and the (C) are performed in this order. Here, M is at least one selected from the group consisting of metalloids and metal elements other than Li, and X is at least one selected from the group consisting of F, Cl, Br, and I.

4. 发明公开

EP3940837A1 LAMINATED BATTERY 审中-公开
公开(公告)号：EP3940837A1
公开(公告)日：2022-01-19
申请号：EP19919244.4
申请日：2019-11-13
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： HONDA Kazuyoshi , KAWASE Akira , KOGA Eiichi , NISHIDA Kouji , MASUDA Noboru , YAMASAKI Takeshi
IPC分类号： H01M10/052 , H01M10/0585 , H01M2/26 , H01M2/30
摘要： A laminated battery includes a plurality of battery cells which are laminated and a current collecting lead. Each of the plurality of battery cells includes a positive electrode current collector, a solid electrolyte layer, a positive electrode active material layer disposed between the positive electrode current collector and the solid electrolyte layer, a negative electrode current collector, and a negative electrode active material disposed between the positive electrode active material and the negative electrode current collector. 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.

5. 发明公开

EP4280334A1 BATTERY AND LAMINATED BATTERY 审中-实审
公开(公告)号：EP4280334A1
公开(公告)日：2023-11-22
申请号：EP21919533.6
申请日：2021-10-26
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KOGA Eiichi
IPC分类号： H01M10/0562 , H01M10/0585 , H01M50/202 , H01M50/204 , H01M50/547 , H01M50/55 , H01M50/572
摘要： A battery includes: a power generation element including at least one battery cell including an electrode layer, a counter electrode layer, and a solid electrolyte layer positioned between the electrode layer and the counter electrode layer; a first insulation film; an electrode terminal electrically connected to the electrode layer; and a counter electrode terminal electrically connected to the counter electrode layer. The power generation element includes an electrode main surface that is a main surface formed of a surface of the electrode layer, a counter electrode main surface that faces the electrode main surface and is a main surface formed of a surface of the counter electrode layer, and a side surface that connects the electrode main surface and the counter electrode main surface. The first insulation film includes a first side surface covering portion that covers the side surface and a first main surface covering portion that is connected with the first side surface covering portion and covers the counter electrode main surface. 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.

6. 发明公开

EP4216333A1 BATTERY AND LAMINATED BATTERY 审中-实审
公开(公告)号：EP4216333A1
公开(公告)日：2023-07-26
申请号：EP21869099.8
申请日：2021-08-19
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KOGA Eiichi
IPC分类号： H01M10/0585 , H01M10/052 , H01M10/0562 , H01M50/548
摘要： A battery includes: a power generation element that includes at least one battery cell including an electrode layer, a counter electrode layer, and a solid electrolyte layer positioned between the electrode layer and the counter electrode layer; an electrode insulation film; a counter electrode insulation film; an electrode terminal that is electrically connected to the electrode layer; and a counter electrode terminal that is electrically connected to the counter electrode layer. The power generation element includes an electrode main surface that is a main surface formed of a surface of the electrode layer, a counter electrode main surface that is a main surface facing the electrode main surface and formed of a surface of the counter electrode layer, and a side surface. The electrode insulation film includes a first side surface covering portion that covers a part of the side surface and an electrode main surface covering portion that covers the electrode main surface. The counter electrode insulation film includes a second side surface covering portion that covers another part of the side surface and a counter electrode main surface covering portion that covers the counter electrode main surface. The electrode terminal includes a counter electrode insulation film covering portion that covers the second side surface covering portion and an electrode contact portion that is in contact with the electrode main surface. The counter electrode terminal includes an electrode insulation film covering portion that covers the first side surface covering portion and a counter electrode contact portion that is in contact with the counter electrode main surface.

7. 发明公开

EP3940847A1 LAMINATED BATTERY 审中-公开
公开(公告)号：EP3940847A1
公开(公告)日：2022-01-19
申请号：EP19919400.2
申请日：2019-11-13
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： HONDA Kazuyoshi , KOGA Eiichi , KAWASE Akira , MASUDA Noboru , YAMASAKI Takeshi
IPC分类号： H01M10/0562 , H01M10/0585 , H01M2/26
摘要： A laminated battery includes a plurality of battery cells which are laminated and a current collecting lead. Each of the plurality of battery cells includes a positive electrode current collector, a solid electrolyte layer, a positive electrode active material layer disposed between the positive electrode current collector and the solid electrolyte layer, a negative electrode current collector, and a negative electrode active material disposed between the positive electrode active material and the negative electrode current collector. The plurality of battery cells include a first battery cell and a second battery cell that are adjacent to each other. The first battery cell has a surface facing the second battery cell. The surface facing the second battery cell includes an exposed surface that is 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 plurality of battery cells. The current collecting lead is connected to the exposed surface.

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