公开(公告)号：US20220190386A1

公开(公告)日：2022-06-16

申请号：US17440590

申请日：2020-03-18

Applicant: GS Yuasa International Ltd.

Inventor： Akifumi KIKUCHI

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569

Abstract: A nonaqueous electrolyte for an energy storage device according to an aspect of the present invention includes an imide salt (a), a salt (b) in which a charge center element of an anion is boron and which has an oxalato group, and a difluorophosphate (c), in which a content of the imide salt (a) is 3 or more in terms of molar ratio with respect to a total content of the salt (b) in which the charge center element of the anion is boron and which has the oxalato group and the difluorophosphate (c). A nonaqueous electrolyte for an energy storage device according to another embodiment of the present invention includes an imide salt (a), a salt (b) in which a charge center element of an anion is boron and which has an oxalato group, and a difluorophosphate (c), in which a content of the imide salt (a) is 25 mol % or more with respect to a total content of all ionic compounds.

公开(公告)号：US20220188478A1

公开(公告)日：2022-06-16

申请号：US17440113

申请日：2020-01-29

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Shigeki YAMATE

IPC: G06F30/20 ,  H01M10/48

Abstract: This simulation method includes accepting a simulation condition relating to an electricity storage device; and calculating a short circuit current on the basis of the accepted simulation condition to simulate a thermal phenomenon from the electricity storage device to the outside.

公开(公告)号：US20220137142A1

公开(公告)日：2022-05-05

申请号：US17433181

申请日：2019-06-10

Applicant: GS Yuasa International Ltd.

Inventor： Hirokazu ITO ,  Hiroaki SONE ,  Yuya KIHIRA ,  Kazuo HARUKI

IPC: G01R31/379

Abstract: A lead-acid battery monitoring apparatus includes: sensor units attached to lead-acid batteries connected in series and/or in parallel; and a control unit capable of wireless communication connection with the sensor units. The control unit receives a setting as to whether to prohibit or permit alarm output for each of the lead-acid batteries.

公开(公告)号：US20220137140A1

公开(公告)日：2022-05-05

申请号：US17433185

申请日：2019-07-01

Applicant: GS Yuasa International Ltd.

Inventor： Kenta YOSHIMOTO ,  Shuichi TAKEMOTO ,  Hirokazu ITO ,  Yuya KIHIRA

IPC: G01R31/371 ,  G01R31/382 ,  G01R31/385

Abstract: A storage battery monitoring apparatus includes: monitoring units attached to storage batteries connected in series and/or in parallel; and a management unit capable of wireless communication connection with the monitoring units. By using identification information of a specific monitoring unit included in a message broadcasted from the management unit to the monitoring units, communication between the management unit and the specific monitoring unit is established.

公开(公告)号：US20220085414A1

公开(公告)日：2022-03-17

申请号：US17420333

申请日：2019-12-03

Applicant: GS Yuasa International Ltd.

Inventor： Kazuki KAWAGUCHI ,  Jun OYAMA ,  Taisei SEKIGUCHI ,  Tomonori KAKO

IPC: H01M10/0568 ,  H01M4/587 ,  H01M4/58 ,  H01M10/0525 ,  H01G11/62 ,  H01G11/42 ,  H01G11/50 ,  H01G11/06 ,  H01G11/86

Abstract: One aspect of the present invention is an energy storage device including; a negative electrode containing a negative active material; a positive electrode containing a positive active material; and a nonaqueous electrolyte. The negative active material contains solid graphite particles with an aspect ratio of 1 to 5 as a main component, and the nonaqueous electrolyte contains an imide salt containing phosphorus or sulfur.

公开(公告)号：US11251629B2

公开(公告)日：2022-02-15

申请号：US16498941

申请日：2018-04-05

Applicant: GS Yuasa International Ltd.

Inventor： Atsushi Fukushima

IPC: H02J7/00 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/16

Abstract: An energy storage apparatus includes a plurality of energy storage devices connected in series, a voltage detection circuit that detects voltages of the plurality of energy storage devices, and a discharge circuit that discharges the energy storage devices individually, and a BMU having a control unit, in which the control unit discharges only an energy storage device having a highest voltage among the plurality of energy storage devices. Further, charging is stopped when a first duration elapses in a state that a cell voltage of the energy storage device having the highest voltage exceeds a first voltage threshold, or charging is stopped when a second duration elapses in a state that the cell voltage of the energy storage device having the highest voltage exceeds a second voltage threshold.

公开(公告)号：US11251427B2

公开(公告)日：2022-02-15

申请号：US16771499

申请日：2018-12-14

Applicant: GS Yuasa International Ltd.

Inventor： 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) is 1

公开(公告)号：US20220034970A1

公开(公告)日：2022-02-03

申请号：US17277580

申请日：2019-09-25

Applicant: GS Yuasa International Ltd.

Inventor： Takeyuki SHIRAISHI

IPC: G01R31/367 ,  G01R31/3828 ,  B60L58/12

Abstract: A detector 100, which detects an abnormality of a communication line L1 connecting a moving body controller 30 and an energy storage apparatus 50 that are mounted on a moving body 10, detects occurrence or non-occurrence of the abnormality of the communication line L1 based on at least two pieces of information from: a moving body state signal Sv transmitted from the moving body controller 30 to the energy storage apparatus 50 and stored in the energy storage apparatus 50; a communication state between the moving body controller 30 and the energy storage apparatus 50; and information on the charge and discharge of the energy storage apparatus 50.

公开(公告)号：US20210359373A1

公开(公告)日：2021-11-18

申请号：US16479878

申请日：2018-01-25

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Kohei KADOTA ,  Riku AIKATA

IPC: H01M50/342 ,  H01G9/12 ,  F16K17/16

Abstract: A rupture valve is formed on a wall of a container and has a break line along which a wall thickness of the rupture valve is decreased. The break line has an outer edge line which defines an outer edge of an opening region and a plurality of division lines which divide the opening region. The outer edge line has: a first base line and a second base line formed discontinuously such that the first base line and the second base line extend in a first direction, and are formed in a spaced-apart manner in a second direction orthogonal to the first direction; a first support portion forming line formed on a breaking portion of the first base line and extending from the first base line toward the second base line; and a second support portion forming line formed on a breaking portion of the second base line.

公开(公告)号：US11128155B2

公开(公告)日：2021-09-21

申请号：US16619365

申请日：2018-05-29

Applicant: GS Yuasa International Ltd.

Inventor： Yuki Imanaka

IPC: H02J7/00 ,  H01M10/42

Abstract: A battery management system (BMS) is provided, which includes: an on-off switch provided in a current path connecting an assembled battery and electrical equipment; a controller that switches the on-off switch to an off-state when an abnormality in the assembled battery is expected; and a bypass route connected in parallel with the on-off switch and having at least one of a parasitic diode that allows current to flow only in a direction of charging the assembled battery and a parasitic diode that allows current to flow only in a direction of discharging the assembled battery. A second excitation coil is connected in series with the parasitic diode and the parasitic diode 50B in the bypass route, the second excitation coil switching the on-off switch to an on-state with magnetic flux by flow of current with a predetermined current value.