公开(公告)号：US12266931B2

公开(公告)日：2025-04-01

申请号：US17755821

申请日：2020-11-06

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki Endo ,  Masao Yokoyama

IPC: H02J3/00 ,  G06Q50/06 ,  H02J3/32

Abstract: A calculation device 20 is linked with an electric power system 1 and optimizes energy utilization efficiency of a grid S1 including a power storage device 15. The calculation device 20 determines the range of a final charge state of a prediction target section of the power storage device 15 on the basis of power demand prediction for the next and following sections, and assesses, through the optimization calculation for the prediction target section, whether or not the final charge state of the section falls within the range.

公开(公告)号：US12261466B2

公开(公告)日：2025-03-25

申请号：US17927218

申请日：2021-04-14

Applicant: GS Yuasa International Ltd.

Inventor： Hirokazu Ito ,  Yuya Kihira ,  Kazuo Haruki ,  Ibuki Watano

IPC: G01R31/36 ,  H02J7/00

Abstract: A storage battery monitoring device according to an aspect of the present invention includes: a plurality of monitoring units attached to a plurality of storage batteries connected in series and/or in parallel; and a management unit capable of wirelessly communicating with the plurality of monitoring units. The management unit sequentially selects identification information about the plurality of monitoring units stored previously, and transmits a connection request message including identification information about a selected monitoring unit to the plurality of monitoring units through wireless communication in order to establish communication with the selected monitoring unit. The management unit further updates identification information about another monitoring unit to identification information about one monitoring unit through the wireless communication when the another monitoring unit is replaced with the one monitoring unit.

公开(公告)号：US20250079497A1

公开(公告)日：2025-03-06

申请号：US18580488

申请日：2022-06-23

Applicant: GS Yuasa International Ltd.

Inventor： Yuto YAMAKAWA ,  Takashi OKAJIMA

IPC: H01M10/04 ,  H01G11/30 ,  H01M4/36 ,  H01M10/058

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 therebetween, in which the electrode assembly is in a state where a load is applied to the electrode assembly in a stacking direction, the positive electrode contains a positive active material, tungsten, boron, sulfur, phosphorus, silicon, titanium, nitrogen, germanium, aluminum, zirconium or a different element which is a combination thereof is present on a surface of the positive active material, and a creep strain after a load of 2 MPa is held for 60 seconds at a temperature of 65° C. in the separator is 0.20 or less.

公开(公告)号：US20250047210A1

公开(公告)日：2025-02-06

申请号：US18836255

申请日：2023-02-06

Applicant: GS Yuasa International Ltd.

Inventor： Akiteru CHIBA

IPC: H02M3/335 ,  H02M1/00 ,  H02M3/00

Abstract: A plurality of half-bridge LLC converters including a resonance circuit including resonant capacitors Cr1 to Crn are included as a circuit element 10, and a resonant capacitor Crk (k is a natural number of 1 to n) of each of the circuit element 10 has one end connected in series to a resonant reactor Lr and a primary winding N of a transformer T, and another end connected to the resonant capacitor Crk of another one of the circuit elements 10 so as to construct a k-dimensional multiphase LLC converter having a phase difference of 360°/Pk by Pk (Pk is any natural number of two or more) of the circuit elements 10, secondary windings S of a transformer of the circuit element 10 operating in the same phase are connected in series and the secondary windings are star-connected.

公开(公告)号：US12218375B2

公开(公告)日：2025-02-04

申请号：US17418915

申请日：2019-06-20

Applicant: GS Yuasa International Ltd.

Inventor： Masamitsu Tononishi ,  Makoto Yoda

IPC: H01M50/293 ,  H01M50/244 ,  H01M50/209 ,  H01M50/227 ,  H01M50/276

Abstract: An energy storage apparatus includes: an energy storage device including a case in which a joining portion is formed; and a support member which is arranged so as to extend in an elongated shape along the joining portion at a position outside the case and along the joining portion in a side surface portion of the case, and supports the side surface portion.

公开(公告)号：US20240426920A1

公开(公告)日：2024-12-26

申请号：US18551500

申请日：2022-03-09

Applicant: GS Yuasa International Ltd.

Inventor： Hirofumi IMAIZUMI ,  Tetsuro MATSUMOTO ,  Kayo YAMASAKI

IPC: G01R31/367 ,  G01R31/392 ,  G01R31/396

Abstract: An abnormality detection device includes: a creation unit that creates learning data from measurement data of an energy storage device; a storage unit that stores a model learned to output a score corresponding to whether or not abnormal measurement data is included in the measurement data when the measurement data is input using the created learning data; a detection unit that detects an abnormality or a sign of abnormality of the energy storage device based on a score output by inputting the measurement data to the model; and a determination unit that determines electric power distribution using an electric power adjustment function of the energy storage device based on the abnormality or the sign of abnormality.

公开(公告)号：US20240413500A1

公开(公告)日：2024-12-12

申请号：US18699515

申请日：2022-10-12

Applicant: GS Yuasa International Ltd.

Inventor： Hironori AIDA ,  Ryoichi OKUYAMA

IPC: H01M50/564 ,  H01G11/74 ,  H01G11/78 ,  H01M10/04 ,  H01M50/105 ,  H01M50/538 ,  H01M50/547

Abstract: An energy storage device includes: an electrode assembly that is formed by stacking a plurality of plates and is elongated in a first direction; a container that accommodates the electrode assembly and is elongated in the first direction; and a first terminal that is electrically connected to the electrode assembly. The container includes a side surface portion at an end portion of the container in the first direction. The side surface portion includes: a first terminal mounting portion on which the first terminal is mounted; and a first recessed portion that is formed at a position different from a position where the first terminal mounting portion is disposed.

公开(公告)号：US20240402255A1

公开(公告)日：2024-12-05

申请号：US18694923

申请日：2022-08-25

Applicant: GS Yuasa International Ltd.

Inventor： Hirokazu ITO ,  Syuichi TAKEMOTO ,  Kenta YOSHIMOTO ,  Masayuki IWASAKI ,  Kazuo HARUKI ,  Tatsuya INOUE ,  Tsutomu UENO ,  Takafumi AKAGI ,  Yuya YAMASHITA

IPC: G01R31/371 ,  G01R31/396 ,  H02J7/00

Abstract: A management device includes: a first communication unit that receives state data of an energy storage device; a second communication unit that receives identification data transmitted from a host device; an external terminal to which a switch is connected and which receives an input from the switch; a state detection unit that detects a state of the switch via the external terminal; and a processing unit that stores the identification data in a storage unit when the second communication unit receives the identification data and the state detection unit detects that the switch is in a specific state, in which the state data received by the first communication unit is transmitted to the host device or another device in association with the identification data stored in the storage unit.

公开(公告)号：US20240396438A1

公开(公告)日：2024-11-28

申请号：US18694377

申请日：2022-09-16

Applicant: GS Yuasa International Ltd.

Inventor： Akiteru CHIBA ,  Keita ISHIKURA

IPC: H02M1/42 ,  H02M1/00 ,  H02M7/217

Abstract: A power factor correction circuit includes a series circuit in which a reactor L and a control switch Q1 are connected in series to both ends of a rectifier circuit 2 that rectifies input voltage of an AC power supply, a series circuit in which a synchronous rectification switch Q2 and an output capacitor C1 are connected to two main terminals of the control switch, and a control circuit 10 that alternately turns on and off the control switch and the synchronous rectification switch so that output voltage of the output capacitor becomes a first predetermined value and controls ON time of the control switch so that a peak value of current flowing through the control switch is proportional to input voltage. The control circuit turns on and off the control switch and the synchronous rectification switch so as to adjust a reverse excitation amount for reverse excitation of the reactor by causing current flowing through the reactor to reversely flow from the output voltage side to the input voltage side, and the reverse excitation amount is adjusted to a second predetermined value regardless of input voltage Vi.

公开(公告)号：US12155082B2

公开(公告)日：2024-11-26

申请号：US17598745

申请日：2020-03-18

Applicant: GS Yuasa International Ltd.

Inventor： Yasutaka Miyawaki

IPC: H01M50/00 ,  H01M10/0525 ,  H01M50/204 ,  H01M50/291 ,  H01M50/293 ,  H01M50/296 ,  H01G9/08 ,  H01M50/209 ,  H01M50/224 ,  H01M50/264 ,  H01M50/284

Abstract: An energy storage apparatus includes an energy storage device including a case, a spacer including a spacer main body portion arranged on a first side in a first direction of the energy storage device, and a side member including a side main body portion arranged on a first side in a second direction intersecting the first direction of the energy storage device.