公开(公告)号：US10527681B2

公开(公告)日：2020-01-07

申请号：US15557372

申请日：2016-03-30

Applicant: GS Yuasa International Ltd.

Inventor： Kazuki Furukawa ,  Hiroki Matsui ,  Seijiro Ochiai ,  Takaaki Iguchi

IPC: G01R31/392 ,  G01R31/374 ,  G01R31/36 ,  H02J7/00

Abstract: It is an object of an embodiment to provide a degradation estimator for an energy storage device, configured to estimate degradation of the energy storage device, an energy storage apparatus, an input-output control device for the energy storage device, and a method for controlling input and output of the energy storage device. The embodiment includes estimating a temporary power decrease rate of the energy storage device in accordance with at least one of an average load, a maximum load, and a ΔSOC obtained from detected current of the energy storage device and detected temperature of the energy storage device.

公开(公告)号：US10516144B2

公开(公告)日：2019-12-24

申请号：US15435176

申请日：2017-02-16

Applicant: GS Yuasa International Ltd. ,  Honda Motor Co., Ltd.

Inventor： Eiji Yuasa ,  Kentaro Shibuya

IPC: H01M2/10 ,  H01M2/20

Abstract: Provides is an energy storage apparatus which includes: a plurality of energy storage devices disposed in a row in a first direction, and a bus bar configured to connect external terminals of energy storage devices to each other, wherein the bus bar includes a first member having a first connection portion connected to the external terminal of one energy storage device and a first extension portion extending from the first connection portion; and a second member having a second connection portion connected to the external terminal of another energy storage device and a second extension portion extending from the second connection portion, and the first extension portion has a first conductive surface, and the second extension portion has a second conductive surface which is made to overlap with the first conductive surface in a separable manner in a state where the second conductive surface faces the first conductive surface.

公开(公告)号：US10476280B2

公开(公告)日：2019-11-12

申请号：US15466790

申请日：2017-03-22

Applicant: GS Yuasa International Ltd.

Inventor： Atsushi Fukushima

IPC: H02J7/00 ,  H01M2/10 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H02J7/34

Abstract: Provided is an energy storage device management device which includes a controller configured to decide a charge voltage to be applied to a plurality of energy storage devices connected in series, wherein the controller is configured to perform deciding the charge voltage based on a difference in charge amount or a voltage difference between the energy storage devices.

公开(公告)号：US20190334158A1

公开(公告)日：2019-10-31

申请号：US16385287

申请日：2019-04-16

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Joo Young Choi ,  Sarmimala Hore

IPC: H01M4/04 ,  H01M10/04 ,  H01M10/0525 ,  H01M2/18 ,  H01M4/139

Abstract: The invention refers to a method for manufacturing an electrode assembly for a battery cell, whereat segments of a first electrode are placed between a continuous first separator sheet and a continuous second separator sheet; segments of a second electrode are placed on an opposite side of the first separator sheet in respect of the segments of the first electrode and on an opposite side of the second separator sheet in respect of the segments of the first electrode such that a tape element is formed; and the tape element is folded such that the segments of the first electrode and the segments of the second electrode are aligned in a stacking direction. The invention also refers to a battery cell, in particular a lithium ion battery cell, comprising an electrode assembly manufactured using the method according to the invention.

公开(公告)号：US10461290B2

公开(公告)日：2019-10-29

申请号：US14469780

申请日：2014-08-27

Applicant: GS Yuasa International Ltd.

Inventor： Satoshi Murakami ,  Shinsuke Yoshitake ,  Hiroaki Kakimura

IPC: H01M2/10

Abstract: According to an embodiment, an electric storage apparatus includes an electric storage device, an abutment arranged in alignment with the electric storage device, wherein the abutment includes at least three members stacked together, each of the members has a positioning part having a first surface forming a recess and a back surface of the first surface forming a projection, the positioning parts of the members are arranged at positions corresponding to one another, and adjacent members are relatively positioned by inserting a positioning part of one of the adjacent members into a positioning part of the other of the adjacent members.

公开(公告)号：US10418611B2

公开(公告)日：2019-09-17

申请号：US15797669

申请日：2017-10-30

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Shogo Waki ,  Hideki Masuda ,  Masahiro Uchida ,  Syun Ito ,  Seiichi Irie

IPC: H01M2/26 ,  H01M2/10

Abstract: An electrochemical device includes a power generating element including a main portion and a terminal portion, the main portion including an electrode prepared by forming an active material layer on a metal foil surface, the terminal portion being provided on a side of the main portion, the terminal portion including layers of metal foils, an outer package including a container and a lid, the container including a side wall and a bottom wall and housing the power generating element, the lid being formed with a terminal, a current collector including a leg portion to which the layers of metal foils are attached, and a movement restricting member being arranged between the terminal portion of the power generating element and an inner surface of the side wall opposite the terminal portion. The movement restricting member includes a holding portion.

公开(公告)号：US10388933B2

公开(公告)日：2019-08-20

申请号：US15652424

申请日：2017-07-18

Applicant: GS Yuasa International Ltd.

Inventor： Tsuyoshi Hidaka ,  Yasuyuki Iwashima ,  Masanori Kogure

IPC: H01M2/22 ,  H01M2/30 ,  H01G9/008 ,  H01G9/08 ,  H01M10/0525 ,  H01M2/10 ,  H01M2/20

Abstract: An energy storage apparatus includes: energy storage devices each of which has a container and an electrode terminal; a connecting member which is connected to the electrode terminal of one of the energy storage devices and is connected to an external conductive member; and a restricting portion which is in contact with the container, which said one energy storage device includes, and is in contact with the connecting member to restrict the connecting member from moving by an external force.

公开(公告)号：US10381630B2

公开(公告)日：2019-08-13

申请号：US15535893

申请日：2015-12-25

Applicant: GS Yuasa International Ltd.

Inventor： Shun Ito

IPC: H01M2/34 ,  H01M2/06 ,  H01M2/26 ,  H01M10/0525 ,  H01G11/70 ,  H01G11/72 ,  H01G11/74 ,  H01M2/30 ,  H01G11/16 ,  H01G11/76 ,  H01G11/82 ,  H01G11/84 ,  H01M2/04 ,  H01M2/12 ,  H01M10/052

Abstract: An energy storage device includes: a casing 30 having an opening; an energy storage element 20 housed in the casing 30; a lid plate 40 mounted in the opening of the casing 30; a positive electrode terminal member 100 and a negative electrode terminal member 71 integrally fixed to the lid plate 40 in an insulation state by an insulating synthetic resin; a positive electrode current collector 60P configured to electrically connect the energy storage element 20 and the positive electrode terminal member 100 to each other; and a negative electrode current collector 60N configured to electrically connect the energy storage element 20 and the negative electrode terminal member 71 to each other, wherein an easy-to-break portion 65 is formed on at least either one of the positive electrode terminal member 100 or the positive electrode current collector 60P.

公开(公告)号：US20190221833A1

公开(公告)日：2019-07-18

申请号：US16330483

申请日：2017-09-06

Applicant: GS Yuasa International Ltd.

Inventor： Ryosuke SHIMOKAWA ,  Tomonori KAKO ,  Shota ITO ,  Kazuki KAWAGUCHI

IPC: H01M4/139 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/62

CPC classification number: H01M4/139 ,  H01G11/24 ,  H01G11/86 ,  H01M4/13 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/13

Abstract: An energy storage device is provided that has improved power performance at low temperature. In the present embodiment, an energy storage device is provided that includes an electrode having an active material layer, the active material layer contains at least active material particles, the particles contained in the active material layer gives a volume-based particle size frequency distribution that has a first peak and a second peak appearing in a particle size larger than a particle size of the first peak, and particles having particle sizes equal to or smaller than a particle size Dx have a volume proportion of 49% or more and 62% or less in a volume of whole particles contained in the active material layer, with the particle size Dx defined as a particle size at a local minimum frequency between the first peak and the second peak in the particle size frequency distribution.

公开(公告)号：US10336196B2

公开(公告)日：2019-07-02

申请号：US15602719

申请日：2017-05-23

Applicant: GS Yuasa International Ltd.

Inventor： Takeshi Nakamoto ,  Takeyuki Shiraishi

IPC: H02J7/00 ,  B60L11/02 ,  G01R31/374 ,  G01R31/382 ,  G01R31/3842 ,  H01M10/42 ,  H01H47/22 ,  H02J7/14 ,  H02J9/00 ,  G01R31/00 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/48 ,  B60L50/50 ,  B60L50/10 ,  B60L58/13

Abstract: A power control method of an electric storage apparatus that includes an output terminal, an electric storage device connected to the output terminal via a power supply route in the electric storage apparatus, and a monitoring apparatus including a detector, a communication unit, and a controller, includes detecting a variation value corresponding to an amount of charge of the electric storage device, shutting down the power supply route in the electric storage apparatus, which connects the electric storage device to the output terminal, and causing the communication unit to receives an input signal from outside.