公开(公告)号：US11588215B2

公开(公告)日：2023-02-21

申请号：US16964136

申请日：2019-01-30

Applicant: GS Yuasa International Ltd.

Inventor： Hirokazu Kambayashi ,  Shohei Yamao ,  Takuya Aoyama

IPC: H01M50/54 ,  H01M50/40 ,  H01M10/0587

Abstract: An energy storage device includes: an electrode assembly; a case that houses the electrode assembly; and a spacer that is a side spacer disposed between the electrode assembly and the case. The spacer has a rear portion disposed to face the electrode-assembly end portion, a side portion extended in a direction along the side surface of the electrode assembly, and a connection that rotatably connects the side portion to the rear portion.

公开(公告)号：US11579205B2

公开(公告)日：2023-02-14

申请号：US17191162

申请日：2021-03-03

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke Okabe ,  Shota Yamauchi ,  Shuji Hitomi ,  Shigeki Yamate

IPC: G01R31/392 ,  G01R31/382 ,  G01R31/374 ,  G01R31/389

Abstract: Provided is an estimation device including: an acquisition unit that acquires measurement data on an energy storage device; an estimation unit that estimates the amount of deterioration for each deterioration mechanism of the energy storage device based on the acquired measurement data; and an output unit that outputs information based on an estimation result of the estimation unit.

公开(公告)号：US20230040116A1

公开(公告)日：2023-02-09

申请号：US17792353

申请日：2021-02-02

Applicant: GS Yuasa International Ltd.

Inventor： Osamu USHIJIMA

IPC: H01M50/46 ,  H01M50/463

Abstract: An energy storage apparatus includes an energy storage device, a spacer disposed in a predetermined direction of the energy storage device, and an adhesive layer which is disposed between the energy storage device and the spacer and bonds the energy storage device and the spacer to each other. The spacer includes a first protruding portion which is disposed at a position adjacent to the adhesive layer in an intersecting direction which intersects the predetermined direction and projects toward the energy storage device and a second protruding portion which is disposed at a position different from the first protruding portion and projects toward the energy storage device and has a protrusion height lower than that of the first protruding portion.

公开(公告)号：US20230022950A1

公开(公告)日：2023-01-26

申请号：US17787448

申请日：2020-12-22

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Kenta OGI ,  Kei KUMABAYASHI ,  Akihiko MIYAZAKI

IPC: H01M4/133 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131 ,  H01M4/62 ,  H01M50/491 ,  H01M10/0587 ,  H01G11/32 ,  H01G11/46

Abstract: An energy storage device according to one aspect of the present invention includes: a negative electrode including a negative electrode substrate and a negative active material layer layered directly or indirectly on a surface of the negative electrode substrate; and a positive electrode. The negative active material layer contains a negative active material. The negative active material contains non-graphitizable carbon. In one direction of the negative electrode substrate, at least one end edge side of the negative active material layer is thicker than a central portion present between the one end edge side and the other end edge side facing the one end edge side. When a true density of the non-graphitizable carbon is A [g/cm3], an amount of charge B [mAh/g] of the negative electrode in a fully charged state satisfies the following formula 1. −
173
XA+1588
≤
B
≤
-830A+1800

公开(公告)号：US20230009206A1

公开(公告)日：2023-01-12

申请号：US17756509

申请日：2020-12-02

Applicant: GS Yuasa International Ltd.

Inventor： Masakatsu FUJIMATSU ,  Kiyohiro FUJITA ,  Shigeki HATTORI ,  Akimasa SUGIURA

IPC: H02J7/00 ,  H03K17/0812 ,  H02J7/34 ,  H03K17/0814

Abstract: A protection circuit 60 is provided with: switches 61, 62 positioned on a power line PL of an electricity storage element 22 and a load 12; first protection elements 63, 64, 65 connected in parallel with the switches 61, 62 and absorbing surge caused when the switches 61, 62 open and cut off discharge current; and a second protection element 66 connected in parallel with the load and flowing, back to the load, the surge caused when the switches 61, 62 open and cut off the discharge current.

公开(公告)号：US11545717B2

公开(公告)日：2023-01-03

申请号：US16071386

申请日：2017-01-27

Applicant: GS Yuasa International Ltd.

Inventor： Kazuo Haruki ,  Hiroyasu Koyama

IPC: H01M50/298 ,  H01M50/209 ,  H01M50/293 ,  H01M50/507 ,  H01M50/51 ,  H01M50/291 ,  H01M50/284 ,  H01M50/271 ,  H01M50/517

Abstract: An energy storage apparatus, which includes a plurality of energy storage devices, includes: a bus bar which connects the energy storage devices to each other; a wiring; a wiring positioning member, which includes a plurality of guide portions; and a connector holding member, wherein a part of the plurality of guide portions positions the connecting holding member, and wherein an other part of the plurality of guide portions forms a path of the wiring.

公开(公告)号：US11545662B2

公开(公告)日：2023-01-03

申请号：US16771281

申请日：2018-12-14

Applicant: GS Yuasa International Ltd.

Inventor： Daisuke Endo ,  Hiromasa Muramatsu

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/505 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/02

Abstract: Disclosed is a positive active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide, in which the lithium transition metal composite oxide has an α-NaFeO2 structure, a molar ratio Li/Me of Li and a transition metal (Me) of 1.05≤Li/Me≤1.4, and a porosity of 5 to 15%.

公开(公告)号：US20220407123A1

公开(公告)日：2022-12-22

申请号：US17642056

申请日：2020-09-08

Applicant: GS Yuasa International Ltd.

Inventor： Akira WADA

IPC: H01M10/42 ,  H01M50/505

Abstract: An energy storage apparatus includes: an energy storage device; a substrate in which a through hole penetrating a main surface is formed; a through member that penetrates the through hole; and a lateral member disposed lateral to the substrate and covering a side surface of the substrate. The lateral member includes an opening through which at least one of two portions of the through member, the two portions sandwiching the through hole, is visually recognizable from the outside.

公开(公告)号：US20220404420A1

公开(公告)日：2022-12-22

申请号：US17765597

申请日：2020-10-02

Applicant: GS Yuasa International Ltd.

Inventor： Muhammad Syahid Fitri Bin Azahar ,  Yasuyuki HAMANO

IPC: G01R31/379 ,  G01R31/367 ,  G01R31/392

Abstract: An estimation device includes: a derivation unit (31) configured to derive a derivation history based on a current and a voltage of a lead-acid battery and a temperature of the lead-acid battery; a first specifying unit 31 configured to specify a specific gravity of an electrolyte solution; a second specifying unit (31) configured to specify at least one degree out of: a first degree of softening of a positive electrode material; a second degree of corrosion of a positive electrode grid; a third degree of sulfation of a negative electrode; and a fourth degree of shrinkage of a negative electrode material based on the specified specific gravity, the derived derivation history, and at least one relationship selected from the group consisting of: a first relationship between the specific gravity and a first history, and the first degree; a second relationship between the specific gravity and a second history; and the second degree; a third relationship between the specific gravity and a third history; and the third degree; and a fourth relationship between a fourth history and the fourth degree; and an estimation unit (31) configured to estimate a degree of deterioration of the lead-acid battery based on the specified at least one degree.

公开(公告)号：US20220384920A1

公开(公告)日：2022-12-01

申请号：US17770263

申请日：2020-10-22

Applicant: GS yuasa International Ltd.

Inventor： Tsuyoshi HIDAKA ,  Tomohiro KAWAUCHI ,  Toshiki KUSUNOKI ,  Yasutaka MIYAWAKI ,  Masaaki MIMA

IPC: H01M50/553 ,  H01M50/209 ,  H01M50/507 ,  H01M50/519

Abstract: An energy storage apparatus includes an energy storage unit including a plurality of energy storage devices, a first power cable connected to one of a positive electrode connection terminal of the energy storage unit and a negative electrode connection terminal of the energy storage unit and extending from an end portion of the energy storage unit to an outside of the energy storage unit, and a second power cable connected to the other of the positive electrode connection terminal and the negative electrode connection terminal and extending from the end portion of the energy storage unit to the outside of the energy storage unit. The first power cable includes a first connector. The second power cable includes a second connector including a structure which allows direct connection to the first connector. The first power cable is placed in a posture which inhibits connection between the first connector and the second connector.