公开(公告)号：US20240072381A1

公开(公告)日：2024-02-29

申请号：US18504096

申请日：2023-11-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M50/512 ,  H01M10/04 ,  H01M50/186 ,  H01M50/593

CPC classification number: H01M50/512 ,  H01M10/04 ,  H01M50/186 ,  H01M50/593

Abstract: A battery includes: a power generation element including battery cells which are electrically connected in parallel and stacked, and 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; an electrode insulating layer covering an electrode layer among the electrode layers at a side surface of the power generation element; and a counter-electrode terminal covering the 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：US20240128450A1

公开(公告)日：2024-04-18

申请号：US18392953

申请日：2023-12-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Eiichi KOGA ,  Kazuhiro MORIOKA ,  Yasutaka TSUTSUI

IPC: H01M4/525 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/617 ,  H01M10/653 ,  H01M10/654 ,  H01M50/54 ,  H01M50/557

CPC classification number: H01M4/525 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/617 ,  H01M10/653 ,  H01M10/654 ,  H01M50/54 ,  H01M50/557

Abstract: A battery includes: an electrode layer; a counter electrode layer, which is a counter electrode for the electrode layer; a solid electrolyte layer between the electrode layer and the counter electrode layer; and an electrode current collector electrically coupled to the electrode layer. The solid electrolyte layer includes a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. Moreover, a second density, which is of the second solid electrolyte material in the second region, is higher than a first density, which is of the first solid electrolyte material in the first region.

公开(公告)号：US20190131676A1

公开(公告)日：2019-05-02

申请号：US16152414

申请日：2018-10-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Eiichi KOGA

IPC: H01M10/659 ,  H01M4/66

CPC classification number: H01M10/659 ,  H01M4/66 ,  H01M4/665 ,  H01M4/668 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/0525

Abstract: A battery includes a first current collector, a laminate disposed on a first region of a surface of the first current collector, a thermal-expandable layer disposed on a second region of the surface of the first current collector, and a second current collector disposed on both of the laminate and the thermal-expandable layer. The laminate includes a first active material layer disposed on the first region, an electrolyte layer disposed on the first active material layer, and a second active material layer disposed on the electrolyte layer. A thermal expansion ratio of the thermal-expandable layer is greater than a thermal expansion ratio of the laminate.

公开(公告)号：US20250105350A1

公开(公告)日：2025-03-27

申请号：US18977151

申请日：2024-12-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Eiichi KOGA ,  Yoshiko HIGASHI

IPC: H01M10/0562 ,  H01M4/38

Abstract: A solid electrolyte according to the present disclosure contains Li, Pr, Zr, O, and M and includes a crystalline phase having a garnet-type crystal structure, wherein the M is at least one selected from the group consisting of Sb, Bi, As, Ge, and Te. An electricity storage device according to the present disclosure may be, for example, a battery. The battery includes a positive electrode, a negative electrode, and an electrolyte layer provided between the positive electrode and the negative electrode. At least one selected from the group consisting of the positive electrode, the negative electrode, and the electrolyte layer may include the solid electrolyte according to the present disclosure.

公开(公告)号：US20240014519A1

公开(公告)日：2024-01-11

申请号：US18471066

申请日：2023-09-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Eiichi KOGA ,  Noriyuki UCHIDA

IPC: H01M50/533 ,  H01M50/536 ,  H01M50/184 ,  H01M50/193 ,  H01M50/174 ,  H01M50/528 ,  H01M10/0585

CPC classification number: H01M50/533 ,  H01M50/536 ,  H01M50/184 ,  H01M50/193 ,  H01M50/174 ,  H01M50/528 ,  H01M10/0585 ,  H01M2300/0065

Abstract: A battery of the present disclosure includes: a battery element, the battery element including a first electrode, a solid electrolyte layer, and a second electrode; an insulating member; a lead terminal; and a first solder material. The insulating member encloses the battery element and the first solder material. The lead terminal is electrically connected to the battery element. The first solder material is positioned between the insulating member and the lead terminal.

公开(公告)号：US20230387525A1

公开(公告)日：2023-11-30

申请号：US18364992

申请日：2023-08-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M50/186 ,  H01M10/0562 ,  H01M10/0585

CPC classification number: H01M50/186 ,  H01M10/0585 ,  H01M10/0562

Abstract: The battery includes: a power generation element including a negative electrode active material layer, a positive electrode active material layer, and a solid electrolyte layer positioned between the negative electrode active material layer and the positive electrode active material layer; a sealing material that seals a first surface, which is a side surface of the power generation element; and a negative electrode current collector positioned on a side of the negative electrode active material layer in the power generation element. In the battery, a void surrounded by the sealing material, the first surface, and the negative electrode current collector is present, and the internal pressure of the void is lower than 1 atm. The negative electrode current collector includes a first recess curved to be recessed toward the void.

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：US20240274331A1

公开(公告)日：2024-08-15

申请号：US18570016

申请日：2022-06-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiko HIGASHI ,  Eiichi KOGA

IPC: H01C7/12 ,  H01C7/18

CPC classification number: H01C7/12 ,  H01C7/18

Abstract: A surge-absorbing element includes: an element body having a pair of end surfaces opposite to each other and a plurality of side surfaces; at least one pair of internal electrodes; and at least one pair of external electrodes disposed on the pair of end surfaces. The element body includes a functioning portion having voids and including polycrystal structures including a plurality of crystal particles which exhibit voltage non-linearity characteristics and an outer shell part covering the functioning portion. The internal electrodes face each other via the functioning portion. The external electrodes include at least one pair of primary external electrodes disposed on the end surfaces and at least one pair of secondary external electrodes disposed on, and electrically connected to, the primary external electrodes. Each of the secondary external electrodes has an elastic modulus lower than an elastic modulus of each of the primary external electrodes.

公开(公告)号：US20240079658A1

公开(公告)日：2024-03-07

申请号：US18506350

申请日：2023-11-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Eiichi KOGA

IPC: H01M10/0585 ,  H01M4/36 ,  H01M4/62 ,  H01M4/66 ,  H01M50/204 ,  H01M50/533 ,  H01M50/534 ,  H01M50/54

CPC classification number: H01M10/0585 ,  H01M4/366 ,  H01M4/62 ,  H01M4/661 ,  H01M50/204 ,  H01M50/533 ,  H01M50/534 ,  H01M50/54 ,  H01M2300/0065

Abstract: A battery of the present disclosure includes a first electrode layer, a first solid electrolyte layer, and a second electrode layer in this order. The first electrode layer includes: a first active material layer; a second active material layer positioned between the first active material layer and the first solid electrolyte layer, the second active material layer having the same polarity as the first active material layer has; and a second solid electrolyte layer positioned between the first active material layer and the second active material layer. The second solid electrolyte layer is continuous with the first solid electrolyte layer. A stacked battery of the present disclosure includes a plurality of the batteries, and the plurality of batteries are stacked so as to be electrically connected in series or in parallel.

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.