公开(公告)号：EP3890073A1

公开(公告)日：2021-10-06

申请号：EP19891097.8

申请日：2019-10-10

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： OSHIMA Tatsuya ,  SASAKI Izuru ,  SUGIMOTO Yuta ,  NISHIYAMA Seiji ,  SAKAIDA Masashi ,  KAWASE Akira

IPC分类号： H01M4/58 ,  H01M4/136 ,  H01M10/0585

摘要： The present disclosure provides a negative electrode material that can improve the cycle characteristics of a battery. The negative electrode material according to the present disclosure contains a reduced form of a solid electrolyte material. The solid electrolyte material is denoted by Formula (1): Li α M β X γ . Herein, in Formula (1), each of α, β, and γ is a value greater than 0, M represents at least one element selected from the group consisting of metal elements except Li and semimetals, and X represents at least one element selected from the group consisting of F, CI, Br, and I.

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.

公开(公告)号：EP4084115A1

公开(公告)日：2022-11-02

申请号：EP20904769.5

申请日：2020-04-14

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： MORIOKA Kazuhiro ,  KAWASE Akira

IPC分类号： H01M4/13 ,  H01M10/0562 ,  H01M10/0585

摘要： The present disclosure provides a highly-reliable battery. A battery (50) according to the present disclosure includes an electrode layer (10), a counter-electrode layer (20) placed opposite to the electrode layer (10), and a solid electrolyte layer (30) located between the electrode layer (10) and the counter-electrode layer (20). The electrode layer (10) includes a collector(11), an electrode active material layer (12) located between the collector (11) and the solid electrolyte layer (30), and an insulating layer (13) located between the collector (11) and the electrode active material layer (12) at ends of the electrode layer (10). The counter-electrode layer (20) has a counter-electrode active material layer (22) placed opposite to the electrode active material layer (12). The electrode active material layer (12) has a region that does not overlap the insulating layer (13) in plan view. A side surface of the insulating layer (13) and a side surface of the electrode active material layer (12) are flush with each other.

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.