公开(公告)号：US20220094021A1

公开(公告)日：2022-03-24

申请号：US17421667

申请日：2020-01-23

Applicant: GS Yuasa International Ltd.

Inventor： Takaaki ISHIKAWA

IPC: H01M50/507 ,  H01M50/547

Abstract: An energy storage apparatus includes a plurality of energy storage devices and bus bars. The plurality of energy storage devices include four energy storage devices arranged in two rows and two columns in a Z-axis direction and an X-axis direction and arranged with long side surfaces a facing the Z-axis direction. Each of the four energy storage devices includes an electrode terminal at an end portion in a Y-axis direction. The bus bar includes four connecting portions connected to the respective electrode terminals of the four energy storage devices, a curved portion extending in the X-axis direction, and notch portions extending along the Z-axis direction from end edges in the Z-axis direction. The curved portion is arranged at a position in the Z-axis direction between two connecting portions arranged in the Z-axis direction among the four connecting portions.

公开(公告)号：US11283136B2

公开(公告)日：2022-03-22

申请号：US14863927

申请日：2015-09-24

Applicant: GS Yuasa International Ltd.

Inventor： Akihiko Miyazaki ,  Sumio Mori ,  Tomonori Kako

IPC: H01M2/16 ,  H01M50/449 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/058 ,  H01M50/403

Abstract: An energy storage device includes a positive electrode provided with a positive composite layer containing a positive active material, a negative electrode provided with a negative composite layer containing a negative active material, and a separator partitioning between the positive electrode and the negative electrode, wherein the separator includes a substrate uniaxially drawn into a sheet shape and a coating layer coating at least one of surfaces of the substrate, and the coating layer has an anisotropic structure with orientation in a direction different from a drawing direction of the substrate.

公开(公告)号：US20220077535A1

公开(公告)日：2022-03-10

申请号：US17418496

申请日：2019-12-05

Applicant: GS Yuasa International Ltd.

Inventor： Tsuyoshi HIDAKA ,  Yasuyuki IWASHIMA ,  Shun SASAKI

IPC: H01M50/289 ,  H01M50/209 ,  H01M50/296 ,  H01M50/505

Abstract: An energy storage apparatus includes an energy storage device, a spacer disposed on a first direction side of the energy storage device, and a bus bar connected to the energy storage device, and at least a part of the bus bar is disposed inside the spacer.

公开(公告)号：US11217782B2

公开(公告)日：2022-01-04

申请号：US16090727

申请日：2017-04-03

Applicant: GS Yuasa International Ltd.

Inventor： Shota Ito ,  Tomonori Kako ,  Kazuki Kawaguchi

IPC: H01M4/02 ,  H01M4/36 ,  H01M4/131 ,  H01G11/24 ,  H01G11/86 ,  H01M4/04 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/1397 ,  H01M4/1391

Abstract: An energy storage device includes a positive electrode having a positive active material layer containing an active material in the form of particles. The positive active material layer contains primary particles of the active material and secondary particles formed by aggregation of a plurality of primary particles. The proportion of primary particles relative to all particles of the active material in the positive active material layer is 5% or more and 40% or less. An method for producing an energy storage device includes preparing a positive electrode having a positive active material layer by forming a positive active material layer from a composite containing at least secondary particles of an active material, and assembling an energy storage device using the prepared positive electrode. In the preparation of the positive electrode, the positive active material layer is pressed to deagglomerate some of the secondary particles into primary particles, and the proportion of primary particles relative to all particles of the active material in the positive active material layer is adjusted to 5% or more and 40% or less.

公开(公告)号：US20210399292A1

公开(公告)日：2021-12-23

申请号：US17464463

申请日：2021-09-01

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

Inventor： Taisei Inoue ,  Daisuke Nishikawa ,  Manabu Yamamoto ,  Katsuya Inoue

IPC: H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/525 ,  C01G53/00

Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0

公开(公告)号：US11205775B2

公开(公告)日：2021-12-21

申请号：US16060690

申请日：2016-12-08

Applicant: GS Yuasa International Ltd.

Inventor： Akifumi Kikuchi

IPC: H01M4/485 ,  H01M4/131 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/02 ,  H01M4/62 ,  H01M4/505 ,  H01M4/525

Abstract: One aspect of the present invention is a nonaqueous electrolyte energy storage device including a positive electrode containing a positive composite, the positive composite containing a positive active material, a phosphorus atom and an aluminum atom, in which in a spectrum of the positive composite as measured by X-ray photoelectron spectroscopy, a peak position of P2p is at 134.7 eV or less, and a peak height ratio of Al2p to P2p (Al2p/P2p) is 0.1 or more.

公开(公告)号：US11183675B2

公开(公告)日：2021-11-23

申请号：US16635829

申请日：2018-07-30

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Bernd Reinsch ,  Leonore Glanz ,  Calin Iulius Wurm ,  Harald Bauer ,  Wolfgang Weydanz

IPC: H01M4/04 ,  H01M4/139 ,  H01M4/62

Abstract: The invention relates to a method for producing an electrode (E) for an electrochemical cell, in particular for a lithium cell. In order to produce a homogeneous mixture allowing the time-saving, cost-effective production, for example by dry coating, of an electrode (E) with improved properties and/or with a layer thickness significantly greater than 100 μm, for example for vehicle batteries, in particular for electric and/or hybrid vehicles, in said method at least one binder (B) and at least one particulate fibrillation auxiliary agent (F) are mixed in a mixing process with a high shear load, the at least one binder (B) being fibrillated (fB), and at least one electrode component (E1) is then added to the at least one fibrillated binder (B) in a mixing process with a low shear load. The invention also relates to an electrode (E) produced in this manner and to an electrochemical cell equipped with an electrode (E) of this type.

公开(公告)号：US20210357551A1

公开(公告)日：2021-11-18

申请号：US17265435

申请日：2019-08-27

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Shigeki YAMATE

IPC: G06F30/20

Abstract: A development support device, a terminal device, a development support method, and a computer program are provided. A receiving unit that receives a simulation condition of a power storage device from a terminal device after user authentication of the terminal device, a simulation execution unit that simulates behavior of the power storage device based on the received simulation condition, and a transmission unit that transmits a simulation result by the simulation execution unit to the terminal device are included.

公开(公告)号：US20210351430A1

公开(公告)日：2021-11-11

申请号：US17307070

申请日：2021-05-04

Applicant: GS Yuasa International Ltd.

Inventor： Yoshiyuki HONDA ,  Akio KAWAI

IPC: H01M10/04 ,  H01M50/103

Abstract: A method for manufacturing an energy storage device according to one aspect of the present invention includes inserting an electrode assembly into a case while causing an insulating member having a sheet-like shape to follow a surface of the electrode assembly in which electrodes are layered. The insulating member includes a first portion corresponding to a first surface of the electrode assembly in a first direction which is a direction of a short side surface of the case and a thickness direction of the electrode assembly, a second portion corresponding to a first end surface which is an end surface of the electrode assembly in a second direction orthogonal to the first direction, a third portion corresponding to a second surface of the electrode assembly in the first direction, and a first extending portion extending from the first portion.

公开(公告)号：US20210336288A1

公开(公告)日：2021-10-28

申请号：US17371713

申请日：2021-07-09

Applicant: GS Yuasa International Ltd.

Inventor： Kenji KAWATE ,  Takao Maki ,  Takeshi Kawahara

IPC: H01M10/0525 ,  H01M50/10 ,  H01M4/505 ,  H01M10/0587 ,  H01M50/147 ,  H01M50/40 ,  H01M10/04 ,  H01M50/531 ,  H01G11/78 ,  H01M50/543 ,  H01M4/38 ,  H01M4/64 ,  H01M50/463 ,  H01M4/02

Abstract: An energy storage device includes an electrode body in which an electrode is stacked, a container in which the electrode body is accommodated, a cover plate structure including a cover plate that closes the container, and a spacer that is attached to the electrode body. The spacer includes a positioning unit that positions the cover plate structure. An engaging unit, engaging with the positioning unit, is provided in the cover plate structure.