公开(公告)号：US20240356043A1

公开(公告)日：2024-10-24

申请号：US18693359

申请日：2022-09-21

Applicant: GS Yuasa International Ltd.

Inventor： Yuya ITAMI ,  Hideto WATANABE ,  Hiromasa MURAMATSU ,  Heisuke NISHIKAWA

IPC: H01M4/62 ,  H01G11/26 ,  H01G11/30 ,  H01G11/52 ,  H01G11/74 ,  H01G11/86 ,  H01M4/02 ,  H01M4/134 ,  H01M10/0587

CPC classification number: H01M4/628 ,  H01G11/26 ,  H01G11/30 ,  H01G11/52 ,  H01G11/74 ,  H01G11/86 ,  H01M4/134 ,  H01M10/0587 ,  H01M2004/027

Abstract: An energy storage device according to one aspect of the present invention includes: an electrode assembly including a positive electrode, a negative electrode, and a separator; and a nonaqueous electrolyte, in which the negative electrode includes: a negative substrate; a first layer disposed directly or indirectly on the separator side of the negative substrate and containing a metal of gold, platinum, or a combination thereof; and a second layer disposed on the separator side of the first layer, containing a polymer having lithium ion conductivity and a lithium salt, and capable of regulating passage of the nonaqueous electrolyte, and the negative electrode further includes a lithium metal layer disposed between the negative substrate and the first layer.

公开(公告)号：US12100838B2

公开(公告)日：2024-09-24

申请号：US17274668

申请日：2019-09-10

Applicant: GS Yuasa International Ltd.

Inventor： Kenta Ogi ,  Fumiya Nakano ,  Ryosuke Shimokawa ,  Shota Ito ,  Masaki Masuda ,  Taro Yamafuku ,  Kei Kumabayashi ,  Akihiko Miyazaki

IPC: H01M4/587 ,  H01G11/32 ,  H01G11/78 ,  H01G11/86 ,  H01M4/02 ,  H01M4/133 ,  H01M4/1393 ,  H01M50/574 ,  H01M50/578

CPC classification number: H01M4/587 ,  H01G11/32 ,  H01G11/78 ,  H01G11/86 ,  H01M4/133 ,  H01M4/1393 ,  H01M50/574 ,  H01M50/578 ,  H01M2004/021 ,  H01M2004/027

Abstract: An aspect of the present invention is an energy storage device including an electrode assembly that has a negative electrode and a positive electrode, where the negative electrode contains a negative electrode substrate and a negative active material, and has a negative active material layer disposed in an unpressed shape along at least one surface of the negative electrode substrate, the negative active material includes solid graphite particles as a main component, and the solid graphite particles have an aspect ratio of 1 or more and 5 or less.

公开(公告)号：US20240310450A1

公开(公告)日：2024-09-19

申请号：US18576980

申请日：2022-06-16

Applicant: GS Yuasa International Ltd.

Inventor： Shuhei SATO ,  Nan UKUMORI ,  Ryosuke TAKEHANA

IPC: G01R31/3842 ,  G01R31/392 ,  G01R31/396

CPC classification number: G01R31/3842 ,  G01R31/392 ,  G01R31/396

Abstract: An estimation device includes: an acquisition unit configured to acquire time-series data of a current and a voltage of an energy storage device; an electricity amount calculation unit configured to calculate time-series data of an electricity amount based on the time-series data of the current acquired by the acquisition unit; a generation unit configured to generate a partial charge-discharge profile of the energy storage device based on the time-series data of the acquired voltage and the time-series data of the calculated electricity amount; and an estimation unit configured to estimate an entire discharge characteristic of the energy storage device based on the partial charge-discharge profile.

公开(公告)号：US12088083B2

公开(公告)日：2024-09-10

申请号：US17756447

申请日：2020-12-02

Applicant: GS Yuasa International Ltd.

Inventor： Masakatsu Fujimatsu

IPC: H02H3/18 ,  H02H1/00

CPC classification number: H02H3/18 ,  H02H1/0007

Abstract: A protection circuit 100 of an energy storage apparatus 20 equipped with external terminals 58A, 58B, the protection circuit 100 being equipped with a reflux circuit 110 connected in parallel to a load 12 connected between the external terminals, and also equipped with a switching circuit 120, wherein: the reflux circuit 110 is equipped with a reflux element 111 which causes an induced current produced when the current to the load 12 is blocked to return to the load 12, and a semiconductor switch 115 which is connected in series to the reflux element 111; and the switching circuit 120 switches the semiconductor switch 115 from conducting to blocking after a delay of a prescribed interval from when a reverse voltage is applied to the external terminals 58A, 58B.

公开(公告)号：US20240288503A1

公开(公告)日：2024-08-29

申请号：US18563639

申请日：2022-04-13

Applicant: GS Yuasa International Ltd.

Inventor： Yuki IMANAKA ,  Seiji TAKAI

IPC: G01R31/387 ,  G01R31/36

CPC classification number: G01R31/387 ,  G01R31/3648

Abstract: A correction device that corrects a measured value of a current of an energy storage cell or an assembled battery is configured to calculate a correction value of the measured value of the current based on an SOC difference between a first SOC of the energy storage cell or the assembled battery estimated based on an integrated value of the measured values of the current and a second SOC of the energy storage cell or the assembled battery estimated based on a voltage of the energy storage cell or the assembled battery and is configured to correct the measured value of the current based on the calculated correction value.

公开(公告)号：US20240274947A1

公开(公告)日：2024-08-15

申请号：US18566665

申请日：2022-05-24

Applicant: GS Yuasa International Ltd.

Inventor： Koki MAEDA ,  Yasuyuki IWASHIMA ,  Atsuyuki KONISHI ,  Takuma KAWAI

IPC: H01M50/242 ,  H01M50/249 ,  H01M50/271

CPC classification number: H01M50/242 ,  H01M50/271 ,  H01M50/249

Abstract: An energy storage apparatus includes an energy storage device including a case, an outer case in which the energy storage device is accommodated, and a plate-shaped first plate-shaped member aligned with the energy storage device in a first direction and disposed along the outer case, in which the case includes a case body and a case lid body that are joined to each other, the case body and the case lid body are disposed and aligned in a second direction intersecting with the first direction, and the first plate-shaped member includes a plate-shaped member protrusion that protrudes in the first direction and extends toward an end edge of the plate-shaped member in the second direction.

公开(公告)号：US20240274793A1

公开(公告)日：2024-08-15

申请号：US18566915

申请日：2022-06-08

Applicant: GS Yuasa International Ltd.

Inventor： Ryo Harada

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585

CPC classification number: H01M4/364 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2004/028 ,  H01M2300/0068

Abstract: An all-solid-state electrochemical device according to one aspect of the present invention includes: a positive active material layer; an isolation layer; and a negative active material layer, in which the positive active material layer includes a sulfur-carbon composite, the sulfur-carbon composite contains sulfur and porous carbon, and the carbon has an average pore size of 0.5 nm or more and 3.0 nm or less and an average particle size of 0.1 μm or more and 30.0 μm or less.

公开(公告)号：US20240258561A1

公开(公告)日：2024-08-01

申请号：US18289845

申请日：2022-04-19

Applicant: GS Yuasa International Ltd.

Inventor： Akihiro FUKUSHIMA ,  Katsuya NISHII

IPC: H01M10/0562 ,  C04B35/547

CPC classification number: H01M10/0562 ,  C04B35/547 ,  C04B2235/3865 ,  C04B2235/444 ,  C04B2235/446 ,  H01M2300/008

Abstract: A sulfide solid electrolyte according to an aspect of the present invention includes a crystal structure and contains, as constituent elements, one, or two or more divalent elements A, one, or two or more halogen elements X, and a nitrogen element, and the divalent element A and the halogen element X make a combination such that a compound A0.5X composed of the divalent element A and the halogen element X is higher in hydration energy than LiI.

公开(公告)号：US20240255579A1

公开(公告)日：2024-08-01

申请号：US18560835

申请日：2022-03-07

Applicant: GS Yuasa International Ltd.

Inventor： Yusuke YOSHIOKA

IPC: G01R31/3835 ,  B60R16/033 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC classification number: G01R31/3835 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0047 ,  B60R16/033 ,  H01M2220/20

Abstract: A determination method is provided, which determines a charging reception performance and/or a discharging performance of an energy storage apparatus. The method includes: acquiring an open circuit voltage of the energy storage apparatus after electricity is supplied with an assumed electricity supply pattern based on a charging state of the energy storage apparatus at a point of time of determination; acquiring a change in voltage attributed to the assumed electricity supply pattern after electricity is supplied with the assumed electricity supply pattern based on an internal resistance, a charging state and a temperature at the point of time of determination; acquiring a change in voltage attributed to electricity supply history before the electricity is supplied with the assumed electricity supply pattern based on a polarization component before the electricity is supplied with the assumed electricity supply pattern.

公开(公告)号：US20240243448A1

公开(公告)日：2024-07-18

申请号：US18560289

申请日：2022-03-17

Applicant: GS Yuasa International Ltd.

Inventor： Yu MATSUMOTO ,  Masaki OYA

IPC: H01M50/574 ,  B60R16/033 ,  H01M10/42 ,  H02J7/00

CPC classification number: H01M50/574 ,  B60R16/033 ,  H01M10/425 ,  H02J7/0029 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

Abstract: An in-vehicle energy storage apparatus 50 includes: an energy storage cell 62; a current interruption device 53 configured to interrupt a current to the energy storage cell 62; and a control unit 130, wherein the control unit 130 is configured to, in a case where the energy storage apparatus 50 is charged with electricity in a not-in-vehicle state, interrupt the current to the energy storage cell 62 by the current interruption device 53 after the energy storage apparatus 50 is charged with electricity.