公开(公告)号：US12140614B2

公开(公告)日：2024-11-12

申请号：US17802095

申请日：2021-03-10

Applicant: GS Yuasa International Ltd.

Inventor： Yuki Ueda

IPC: G01R19/165 ,  H01M10/48

Abstract: An energy storage apparatus 20 includes: energy storage devices B1 to B4; a cutoff switch 40 that cuts off current of the energy storage device; a parallel circuit 70 including a rectifier element 75 in which a discharge direction is set to a forward direction, the parallel circuit 70 being connected in parallel to the cutoff switch 40; a first current sensor 50 that measures the current of the energy storage devices B1 to B4; a discharge circuit 90 that discharges an inspection current to the first current sensor 50 through a discharge path including the parallel circuit 70 using the energy storage device as a power source; and a controller 80. The controller 80 determines whether the first current sensor 50 correctly measures the current based on a measurement value of the inspection current Ib.

公开(公告)号：US20240363911A1

公开(公告)日：2024-10-31

申请号：US18556438

申请日：2022-03-17

Applicant: GS Yuasa International Ltd.

Inventor： Ryuichi ITO

IPC: H01M10/42 ,  F02N11/08 ,  G07C5/08 ,  H01M10/48 ,  H01M50/574

CPC classification number: H01M10/425 ,  G07C5/0808 ,  H01M10/48 ,  H01M50/574 ,  F02N11/0862 ,  H01M2010/4271 ,  H01M2200/00 ,  H01M2220/20

Abstract: An energy storage apparatus 50 includes an energy storage cell 62, a current interruption device 53 that interrupts a current I to the energy storage cell 62 and a control unit 121. The control unit 121 interrupts a current by opening the current interruption device 53 in a case where abnormality of the energy storage apparatus 50 is detected together with a vehicle crash, and resumes the supply of electricity to a vehicle, which has been crashed, by closing the current interruption device 53 in a case where the abnormality is no longer detected.

公开(公告)号：US12103426B2

公开(公告)日：2024-10-01

申请号：US17045638

申请日：2019-04-11

Applicant: GS Yuasa International Ltd.

Inventor： Takeyuki Shiraishi

IPC: H02J7/00 ,  B60L58/12 ,  B60R16/033 ,  H01M10/48

CPC classification number: B60L58/12 ,  B60R16/033 ,  H01M10/48

Abstract: An energy storage apparatus includes: an energy storage device; an acquisition unit (current sensor) that acquires information with which the use of the energy storage device can be determined; and a management unit that manages the energy storage device in a set management mode. The management unit sets the management mode of the energy storage device in accordance with the information acquired by the acquisition unit.

公开(公告)号：US20240264245A1

公开(公告)日：2024-08-08

申请号：US18563192

申请日：2022-04-13

Applicant: GS Yuasa International Ltd.

Inventor： Satoshi KUNITA ,  Yuki IMANAKA

IPC: G01R31/54 ,  B60R16/033 ,  H01M50/583 ,  H02J7/00

CPC classification number: G01R31/54 ,  B60R16/033 ,  H01M50/583 ,  H02J7/0036

Abstract: An energy storage apparatus for a moving body includes: an energy storage cell; an external terminal for connecting the energy storage apparatus to the moving body; a current interruption device provided to a connection line that connects the energy storage cell and the external terminal, the current interruption device being configured to interrupt a current of the energy storage cell; a first parallel circuit connected in parallel to the current interruption device and the energy storage cell; and a control unit, wherein the first parallel circuit includes a resistor and a switch that is connected to the resistor in series, and the control unit is configured to determine, in a state where the current interruption device is switched to an open state and the switch of the first parallel circuit is switched to a closed state, an electrical connection state of the energy storage apparatus to the moving body based on a current that flows from the moving body via the external terminal and the first parallel circuit.

公开(公告)号：US20240249049A1

公开(公告)日：2024-07-25

申请号：US18561362

申请日：2022-04-11

Applicant: GS Yuasa International Ltd.

Inventor： Shoko HIRANO ,  Shigeki YAMATE ,  Naoto NISHIMURA

IPC: G06F30/32 ,  G01R31/367 ,  G01R31/3842

CPC classification number: G06F30/32 ,  G01R31/367 ,  G01R31/3842

Abstract: In a generation method for an energy storage device model, in order to simulate a transient actual voltage behavior when an actual current flows in an actual energy storage device for a predetermined period, a parameter in an energy storage device model is adjusted such that a transient model voltage behavior, which is a behavior when a model current equivalent to the actual current flows in the energy storage device model for a predetermined period, approaches the actual voltage behavior. In the generation method for an energy storage device model, in the adjustment, the parameter is changed so as to simulate a state transition of the energy storage device model accompanied by the flow of the model current.

公开(公告)号：US20240234847A9

公开(公告)日：2024-07-11

申请号：US18277932

申请日：2022-02-16

Applicant: GS Yuasa International Ltd. ,  Blue Energy Co., Ltd.

Inventor： Yudai KAWASOE ,  Yuta OHSUGI ,  Taisei SEKIGUCHI ,  Kazushi NITTA

IPC: H01M10/52 ,  H01M4/133 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/136 ,  H01M50/489

CPC classification number: H01M10/52 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/136 ,  H01M50/489 ,  H01M4/133

Abstract: An energy storage device according to an aspect of the present invention includes: an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed therebetween; an electrolyte solution; and a sealable case for housing the electrode assembly and the electrolyte solution, in which a compressive modulus of elasticity of the separator is 15 MPa or more and an inside of the case is in a negative pressure state.

公开(公告)号：US20240234791A1

公开(公告)日：2024-07-11

申请号：US18285024

申请日：2022-03-29

Applicant: GS Yuasa International Ltd.

Inventor： Kie TANAKA

IPC: H01M10/04 ,  H01M10/0585 ,  H01M50/443 ,  H01M50/449 ,  H01M50/489

CPC classification number: H01M10/0468 ,  H01M10/0585 ,  H01M50/443 ,  H01M50/449 ,  H01M50/489 ,  H01M2220/20

Abstract: An energy storage device according to one aspect of the present invention includes: an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed between the positive electrode and the negative electrode; an electrolyte solution; and a case which houses the electrode assembly and the electrolyte solution, in which the electrode assembly is in a state where a load is applied, a pressure P0 (MPa) applied to the electrode assembly in a discharged state, and a strain A obtained when the separator is compressed in a thickness direction under an environment of 45° C. at a pressure of 2 MPa satisfy the following Formula 1.









P
0

(

1
-
A

)

公开(公告)号：US20240178391A1

公开(公告)日：2024-05-30

申请号：US18283299

申请日：2022-03-17

Applicant: GS Yuasa International Ltd.

Inventor： Yasuyuki FURUYA ,  Tsubasa MATSUYOSHI ,  Yasuhiro SOGO

IPC: H01M4/587 ,  H01M4/133 ,  H01M4/02

CPC classification number: H01M4/587 ,  H01M4/133 ,  H01M2004/021

Abstract: A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode containing a polyanionic positive active material; and a negative electrode containing non-graphitic carbon, in which a ratio A/B of a specific surface area A (m2/g) of the polyanionic positive active material to an average particle size B (μm) of the non-graphitic carbon is 4 or more.

公开(公告)号：US11996575B2

公开(公告)日：2024-05-28

申请号：US17253555

申请日：2019-06-21

Applicant: GS Yuasa International Ltd.

Inventor： Yoshimasa Toshioka

IPC: H01M50/242 ,  H01G9/008 ,  H01G9/26 ,  H01M10/658 ,  H01M50/209 ,  H01M50/264 ,  H01M50/291 ,  H01M50/50 ,  H01M50/521

CPC classification number: H01M50/242 ,  H01G9/008 ,  H01G9/26 ,  H01M10/658 ,  H01M50/209 ,  H01M50/264 ,  H01M50/291 ,  H01M50/50 ,  H01M50/521

Abstract: In an embodiment, a plurality of energy storage devices arranged in a first direction, an adjacent member sandwiched between the energy storage devices, a holding member that holds the energy storage devices and the adjacent member, an insulating member sandwiched between the energy storage devices and the holding member, a bus bar, and a bus bar holding member that holds the bus bar and is arranged along the plurality of energy storage devices are provided, in which the bus bar holding member has an elastic deformation portion, and the elastic deformation portion abuts on one of the adjacent member and the insulating member, and presses the bus bar holding member against the other of the adjacent member and the insulating member.

公开(公告)号：US20240170646A1

公开(公告)日：2024-05-23

申请号：US18284936

申请日：2022-03-14

Applicant: GS Yuasa International Ltd.

Inventor： Daisuke ENDO

IPC: H01M4/36 ,  C01B25/45 ,  C01G53/00 ,  H01M4/02 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M50/209 ,  H01M50/51

CPC classification number: H01M4/364 ,  C01B25/45 ,  C01G53/50 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M50/209 ,  H01M50/51 ,  C01P2006/40 ,  H01M2004/028

Abstract: A positive active material for a nonaqueous electrolyte energy storage device according to one aspect of the present invention contains a lithium transition metal compound having a polyanion structure and represented by a general formula LiMPO4 (M is one or more elements selected from Fe, Mn, Ni, and Co) or Li3V2(PO4)3, and a lithium transition metal composite oxide having an α-NaFeO2 type crystal structure and represented by a general formula Li1+αMe1−αO2 (0