公开(公告)号：US20190334211A1

公开(公告)日：2019-10-31

申请号：US16506882

申请日：2019-07-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuyoshi HONDA

IPC: H01M10/0585 ,  H01M4/62 ,  H01M4/587 ,  H01M4/66 ,  H01M10/04 ,  H01M4/525 ,  H01M10/0562

Abstract: A battery includes first and second power generating elements laminated to each other. In the first power generating element, the inner layer of a first electrode current collector is in contact with a first electrode active material layer. In the second power generating element, the inner layer of a second electrode current collector is in contact with a second electrode active material layer. The outer layers of the first electrode current collector and the second electrode current collector are in contact with each other. The inner layer of the first electrode current collector contains a first material; the inner layer of the second electrode current collector contains a third material different from the first material; the outer layer of the second electrode current collector contains a second material different from the first material; and the outer layer of the first electrode current collector contains the second material.

公开(公告)号：US20240363978A1

公开(公告)日：2024-10-31

申请号：US18770210

申请日：2024-07-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Koichi HIRANO ,  Eiichi KOGA ,  Kazuhiro MORIOKA ,  Tsutomu KOSHIZUKA ,  Akira KAWASE

IPC: H01M50/533 ,  H01M4/64 ,  H01M10/0562 ,  H01M10/0585 ,  H01M50/591

CPC classification number: H01M50/533 ,  H01M4/64 ,  H01M10/0562 ,  H01M10/0585 ,  H01M50/591

Abstract: A battery includes: a power generating element having a stacked structure of power generating layers and current collectors; and a counter electrode terminal. Each of the power generating layers is sandwiched between two adjacent ones of the current collectors. The current collectors are not in contact with each other. At least one of the current collectors includes a protruding portion protruding beyond an end surface of the power generating layer in a side surface portion of the power generating element and a stacked portion in which the power generating layers are stacked. When the protruding portion and the stacked portion are projected onto a projection plane perpendicular to the main surfaces of the power generating layers, the projected area of the protruding portion is larger than the projected area of the stacked portion. The counter electrode terminal is connected to a main surface of the protruding portion.

公开(公告)号：US20240072392A1

公开(公告)日：2024-02-29

申请号：US18504076

申请日：2023-11-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Eiichi KOGA ,  Koichi HIRANO ,  Akira KAWASE ,  Kazuhiro MORIOKA

IPC: H01M50/54 ,  H01M50/474 ,  H01M50/486

CPC classification number: H01M50/54 ,  H01M50/474 ,  H01M50/486

Abstract: A battery includes: a power generation element including battery cells each of which includes an electrode layer, a counter-electrode layer, and a solid electrolyte layer located between the electrode layer and the counter-electrode layer, and which are electrically connected in parallel and stacked; an insulating member covering an electrode layer at a side surface of the power generation element; and a terminal electrode covering the side surface and the insulating member, and electrically connected to a counter-electrode layer, in which the power generation element includes: a first parallel unit that includes first battery cells and has both ends in a stacking direction at each of which a counter-electrode layer is located; and a second parallel unit that includes second battery cells, has both ends in the stacking direction at each of which an electrode layers is located, and is stacked on the first parallel unit.

公开(公告)号：US20240021959A1

公开(公告)日：2024-01-18

申请号：US18362570

申请日：2023-07-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Akira KAWASE ,  Eiichi KOGA ,  Koichi HIRANO ,  Kazuhiro MORIOKA ,  Kouji NISHIDA

IPC: H01M50/474 ,  H01M50/548 ,  H01M50/533 ,  H01M50/188

CPC classification number: H01M50/474 ,  H01M50/548 ,  H01M50/533 ,  H01M50/188

Abstract: A battery includes: a power generation element that includes a plurality of unit cells each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer. The power generation element includes a first side surface and a second side surface, and in the first side surface, first depressions and first projections are arranged alternately, in the second side surface, second depressions and second projections are arranged alternately, each of the first depressions includes a first inclination surface, and each of the second depressions includes a second inclination surface. The battery further includes: a first insulating member arranged in the first depressions; a second insulating member arranged in the second depressions; a first conductive member; and a second conductive member. The positive electrode layers are electrically connected via the first conductive member, and the negative electrode layers are electrically connected via the second conductive member.

公开(公告)号：US20240021880A1

公开(公告)日：2024-01-18

申请号：US18357849

申请日：2023-07-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Eiichi KOGA ,  Koichi HIRANO ,  Akira KAWASE

IPC: H01M10/0585 ,  H01M50/131 ,  H01M10/0562 ,  H01M4/04

CPC classification number: H01M10/0585 ,  H01M50/131 ,  H01M10/0562 ,  H01M4/043 ,  H01M10/052

Abstract: The battery includes a power generation element including: a positive electrode active material layer containing a positive electrode active material and a first inorganic solid electrolyte; a negative electrode active material layer containing a negative electrode active material and a second inorganic solid electrolyte; and a solid electrolyte layer positioned between the positive electrode active material layer and the negative electrode active material layer and containing a third inorganic solid electrolyte. There are a plurality of voids inside the power generation element, and an internal pressure of the plurality of voids is lower than 1 atm.

公开(公告)号：US20220181741A1

公开(公告)日：2022-06-09

申请号：US17590537

申请日：2022-02-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA

IPC: H01M50/30 ,  H01M10/48

Abstract: A battery system includes a container including a first outlet; a power generation element contained in the container and disposed inside the container; a measurement unit that measures a gas concentration inside the container; a first opening and closing unit connected to the first outlet; and a control unit that controls the first opening and closing unit. The measurement unit measures the gas concentration while the first opening and closing unit is in a closed state, and the control unit sets the first opening and closing unit to an open state after the gas concentration has exceeded a first threshold.

公开(公告)号：US20240063431A1

公开(公告)日：2024-02-22

申请号：US18499015

申请日：2023-10-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Eiichi KOGA ,  Koichi HIRANO ,  Akira KAWASE ,  Kazuhiro MORIOKA

IPC: H01M10/0562 ,  H01M10/058 ,  H01M50/531

CPC classification number: H01M10/0562 ,  H01M10/058 ,  H01M50/531

Abstract: A battery includes: a power generation element including a plurality of battery cells each of which includes an electrode layer, a counter-electrode layer, and a solid electrolyte layer located between the electrode layer and the counter-electrode layer, the plurality of battery cells being electrically connected in parallel and stacked; an interlayer located between a pair of two adjacent battery cells; an electrode insulating layer covering an electrode layer among the electrode layers at a first side surface of the power generation element; and a counter-electrode terminal covering the first side surface and the electrode insulating layer, and electrically connected to a counter-electrode layer among the counter-electrode layers.

公开(公告)号：US20230387473A1

公开(公告)日：2023-11-30

申请号：US18446261

申请日：2023-08-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Akira KAWASE ,  Eiichi KOGA ,  Koichi HIRANO ,  Kazuhiro MORIOKA ,  Kouji NISHIDA

IPC: H01M10/0585 ,  H01M50/54 ,  H01M50/533 ,  H01M50/543 ,  H01M10/052

CPC classification number: H01M10/0585 ,  H01M50/54 ,  H01M50/533 ,  H01M50/543 ,  H01M10/052

Abstract: A battery includes a power generation element that includes a plurality of unit cells each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer, the unit cells are stacked in a direction normal to a main surface, in a side surface of the power generation element, one electrode layer of the positive electrode layer and the negative electrode layer in each of the unit cells protrudes more than the other electrode layer such that depressions and projections are provided, each of the depressions includes a first inclination surface that is an end surface of the other electrode layer, and the battery further includes: one or more conductive members in contact with a corresponding one of the projections; an insulating member that covers the side surface; and one or more extraction electrodes that are in contact with the one or more conductive members.

公开(公告)号：US20220416290A1

公开(公告)日：2022-12-29

申请号：US17929768

申请日：2022-09-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi HONDA ,  Akira KAWASE ,  Eiichi KOGA

IPC: H01M10/04 ,  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, and a solid electrolyte layer located between the negative-electrode layer and the positive-electrode layer are laminated. The method includes measuring respective characteristics of the plurality of unit battery cells, adjusting respective effective areas of the plurality of unit battery cells on the basis of the respective characteristics of the plurality of unit battery cells measured in the measuring so that respective battery capacities of the plurality of unit battery cells fall within a predetermined range of value, and laminating the plurality of unit battery cells, the effective areas of the plurality of unit battery cells being adjusted in the adjusting.

公开(公告)号：US20210020994A1

公开(公告)日：2021-01-21

申请号：US17060738

申请日：2020-10-01

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuyoshi HONDA

IPC: H01M10/0583 ,  H01M10/04 ,  H01M10/0585 ,  H01M4/66

Abstract: A battery manufacturing method uses a battery manufacturing apparatus, including an electrode layer forming unit, a counter electrode layer forming unit, and a current collector folding unit that folds a first current collector. The battery manufacturing method includes forming (a11) a first electrode layer in contact with the first electroconductive portion by the electrode layer forming unit, forming (a12) a second electrode layer in contact with the second front face region by the electrode layer forming unit, and forming (b11) the first counter electrode layer, which is the counter electrode of the first electrode layer, in contact with the first front face region by the counter electrode layer forming unit. The method also includes folding (c11) the first fold region by the current collector folding unit, and folding (d11) the first insulating portion by the current collector folding unit.