公开(公告)号：US20240079632A1

公开(公告)日：2024-03-07

申请号：US18262649

申请日：2021-11-10

Applicant: GS Yuasa International Ltd.

Inventor： Kazuya OKABE ,  Ryoichi OKUYAMA

IPC: H01M10/04 ,  H01M50/209

CPC classification number: H01M10/0431 ,  H01M50/209

Abstract: An energy storage device includes a wound electrode assembly containing lithium manganese oxide as a main component in a positive active material, and a case that houses the wound electrode assembly. The wound electrode assembly includes a mixture layer forming portion in which a mixture layer is formed, and a mixture layer non-forming portion located at least at one end in a first direction parallel to a winding axis. In the wound electrode assembly, a ratio of a dimension in the first direction to a dimension in a second direction orthogonal to the first direction in plan view is 1.45 or more.

公开(公告)号：US20150132659A1

公开(公告)日：2015-05-14

申请号：US14599314

申请日：2015-01-16

Applicant: GS Yuasa International Ltd.

Inventor： Kenji TANAKA ,  Kazuaki MATSUO ,  Kazuhide TOZUKA ,  Kazuya OKABE

IPC: H01M4/36 ,  H01M4/66 ,  H01G11/58 ,  H01M4/139 ,  H01G11/28 ,  H01M2/14 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01G11/28 ,  H01G11/58 ,  H01G11/86 ,  H01M2/14 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/13 ,  H01M4/139 ,  H01M4/362 ,  H01M4/62 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/4235 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7011 ,  Y02T10/7022 ,  Y10T428/24488 ,  Y10T428/2495 ,  Y10T428/25 ,  Y10T428/30 ,  Y10T428/31504 ,  Y10T428/31678

Abstract: An electricity-storing device includes a first electrode, a second electrode of opposite polarity as the first electrode, and a separator. The first electrode includes a current collector foil, an active material layer formed on at least one surface of the current collector foil, and an electrical resistance layer formed on the at least one surface of the current collector foil so as to be adjacent to and in direct contact with the active material layer, at least a portion of an interface between the active material layer and the electrical resistance layer including a mixed phase where constituents from the active material layer and the electrical resistance layer intermingle;

Abstract translation: 蓄电装置包括第一电极，与第一电极相反极性的第二电极和隔膜。 第一电极包括集电体箔，形成在集电箔的至少一个表面上的活性材料层，以及形成在集电箔上的至少一个表面上的电阻层， 与活性物质层直接接触，活性物质层和电阻层之间的界面的至少一部分包括混合相，其中来自活性物质层和电阻层的成分相互混合;

公开(公告)号：US20230402666A1

公开(公告)日：2023-12-14

申请号：US18250502

申请日：2021-09-28

Applicant: GS Yuasa International Ltd.

Inventor： Ryoichi OKUYAMA ,  Kazuya OKABE

IPC: H01M10/48 ,  H01M10/42

CPC classification number: H01M10/48 ,  H01M10/4285

Abstract: An abnormality detection method detects abnormality of an assembled battery including energy storage devices by an abnormality detection device. Each energy storage device contains, as a positive active material, lithium iron phosphate and lithium transition metal oxide that allows insertion and extraction reaction of a lithium ion in a potential range higher than that of the lithium iron phosphate. A ratio of an amount of charge based on a total amount of the lithium transition metal oxide to an amount of charge based on a total amount of the positive active material in a charge-discharge range, in which the energy storage device is used, is 5% or more. The abnormality detection device acquires voltage of each of the energy storage devices near a charge end point in the charge-discharge range where the energy storage device is used and detects abnormality in the assembled battery using the acquired voltage of the energy storage devices.

公开(公告)号：US20200235358A1

公开(公告)日：2020-07-23

申请号：US16635917

申请日：2018-08-06

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yoshitaka ISHIDA ,  Hiroshi MUKAI ,  Kazuya OKABE ,  Koichi NISHIYAMA

IPC: H01M2/10 ,  H01M2/16 ,  H01G9/08

Abstract: An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

公开(公告)号：US20240055700A1

公开(公告)日：2024-02-15

申请号：US18267447

申请日：2021-12-02

Applicant: GS Yuasa International Ltd.

Inventor： Kazuya OKABE ,  Ryoichi OKUYAMA

IPC: H01M10/658 ,  H01M50/24 ,  H01M50/249

CPC classification number: H01M10/658 ,  H01M50/24 ,  H01M50/249 ,  H01M2220/20

Abstract: An energy storage apparatus includes an energy storage unit including a first energy storage device and a second energy storage device that are arranged in a first direction. The first energy storage device includes a concave part in which a surface of the first energy device, the surface opposite to the second energy storage device is recessed. The energy storage unit further includes: a first adhesive body that is disposed in the concave part between the first energy storage device and the second energy storage device and adheres to the first energy storage device and the second energy storage device; and a spacer that is disposed between the first energy storage device and the second energy storage device at a position different from the first adhesive body in a second direction intersecting with the first direction.

公开(公告)号：US20250015469A1

公开(公告)日：2025-01-09

申请号：US18697935

申请日：2022-09-21

Applicant: GS Yuasa International Ltd.

Inventor： Kazuya OKABE ,  Ryoichi OKUYAMA

IPC: H01M50/609 ,  H01M50/673

Abstract: A method for manufacturing an energy storage device according to one aspect of the present invention includes: degassing an inside of an element case in which an electrode assembly including a positive electrode and a negative electrode is housed and a plurality of electrolyte solution filling ports are provided on one surface; and injecting the electrolyte solution from one electrolyte solution filling case filled with the electrolyte solution into the inside of the degassed element case through the plurality of electrolyte solution filling ports.

公开(公告)号：US20240429503A1

公开(公告)日：2024-12-26

申请号：US18273984

申请日：2022-01-21

Applicant: GS Yuasa International Ltd.

Inventor： Ryoichi OKUYAMA ,  Kazuya OKABE

IPC: H01M50/15 ,  H01M10/04 ,  H01M50/103 ,  H01M50/169 ,  H01M50/547

Abstract: An energy storage device includes: an electrode assembly formed by winding a plurality of plates; and a rectangular parallelepiped case housing the electrode assembly. The case is constructed by welding: a lid formed of a pair of short side surfaces of the case, which face each other in a winding-axis direction, and an other one surface of the case; and a case body formed of three surfaces, except for the pair of short side surfaces and the other one surface, of the case.

公开(公告)号：US20240097179A1

公开(公告)日：2024-03-21

申请号：US18274211

申请日：2022-01-25

Applicant: GS Yuasa International Ltd.

Inventor： Kazuya OKABE ,  Ryoichi OKUYAMA

IPC: H01M10/0525 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/531

CPC classification number: H01M10/0525 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/531

Abstract: An energy storage device includes: an electrode assembly formed by winding a plurality of plates; and a case housing the electrode assembly. The electrode assembly includes: a body including a flat portion and a pair of curved portions sandwiching the flat portion; and a plurality of tabs, each tab formed by stacking a plurality of pieces of plates with the same polarity out of the plurality of plates, and protrude as a pair from each of both end faces of the body in a winding-axis direction. At least one tab of the plurality of tabs includes a bent portion continuous with the curved portion, and a pair of extended portions extended from the bent portion and continuous with the flat portion.

公开(公告)号：US20160276704A1

公开(公告)日：2016-09-22

申请号：US15071044

申请日：2016-03-15

Applicant: GS Yuasa International Ltd.

Inventor： Kazuya OKABE ,  Yudai KATO

IPC: H01M10/0525 ,  H01M10/0587 ,  H01M10/0585 ,  H01M2/16 ,  H01M2/26

CPC classification number: H01M2/263 ,  H01M2/22 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0587 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: Provided is an energy storage device which includes an electrode assembly in which electrode plates are stacked; and a current collector connected to an end portion of the electrode assembly, wherein the end portion of the electrode assembly includes: an electrode plate welded portion at which the stacked electrode plates are welded to each other in a stacking direction and not joined to the current collector; and a current collector joined portion which is joined to the current collector and is arranged adjacently to the electrode plate welded portion in a current collector extending direction that intersects with the stacking direction.

Abstract translation: 提供一种能量存储装置，其包括其中电极板被堆叠的电极组件; 以及与电极组件的端部连接的集电体，其中电极组件的端部包括：电极板焊接部分，堆叠电极板在层叠方向上彼此焊接并且不接合到电流 集电极; 集电体接合部，与集电体接合并且与与堆叠方向相交的集电体延伸方向与电极板焊接部相邻配置。