公开(公告)号：US20240176929A1

公开(公告)日：2024-05-30

申请号：US18552813

申请日：2022-03-25

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Motonobu MURAKAMI ,  Shota YAMAUCHI ,  Shigeki YAMATE

IPC: G06F30/20

CPC classification number: G06F30/20

Abstract: Provided are an estimation device, an estimation method, and a computer program.
An estimation device includes: an acquisition unit configured to acquire data relating to a strain generated in an energy storage device; and an estimation unit configured to estimate an internal stress in the energy storage device based on the data acquired by the acquisition unit using a simulation model that expresses a dynamic state inside the energy storage device.

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：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：US20220276311A1

公开(公告)日：2022-09-01

申请号：US17638027

申请日：2020-08-27

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Shigeki YAMATE

IPC: G01R31/374 ,  G01R31/367 ,  G01R31/389 ,  G01R31/392

Abstract: This estimation device is provided with: an acquiring unit which acquires a measurement result from a temperature sensor for measuring temperature at a specific location to which heat generated by an electrical storage device is transmitted; and an observer which, in accordance with input of the measurement result, estimates the temperature at a location where the temperature sensor has not performed measurement.

公开(公告)号：US20190195958A1

公开(公告)日：2019-06-27

申请号：US16322249

申请日：2017-08-03

Applicant: GS Yuasa International Ltd.

Inventor： Keita SUZUKI ,  Shigeki YAMATE

IPC: G01R31/382 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/48

CPC classification number: G01R31/382 ,  G01R31/36 ,  H01M10/04 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/48

Abstract: Provided is an energy storage device state estimation device (100) for estimating a state of an energy storage device (200), the energy storage device state estimation device (100) including: a temperature estimation part (110) configured to estimate a temperature of the energy storage device (200); and a state estimation part (120) configured to estimate a state of the energy storage device (200) using the temperature of the energy storage device (200), wherein the temperature estimation part (110) is configured such that the energy storage device (200) is divided into a plurality of regions, the respective regions are set as internal regions, a region outside the energy storage device (200) adjacently disposed to the internal region is set as an external region, and a temperature of the energy storage device (200) is estimated using an internal heat transfer amount which is a transfer amount of heat between the two internal regions disposed adjacently to each other and an external heat transfer amount which is a transfer amount of heat between the internal region and the external region disposed adjacently to each other.

公开(公告)号：US20220187139A1

公开(公告)日：2022-06-16

申请号：US17440122

申请日：2020-03-18

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Shigeki YAMATE

IPC: G01K1/20 ,  H01M10/48 ,  H02J7/00

Abstract: The present invention provides an estimation device and an estimation method. The present invention comprises: an input unit to which are inputted an element temperature measured for some power storage elements among a plurality of power storage elements that constitute a power storage device, and an environment temperature of the power storage device; and an estimation unit that estimates the temperature of the power storage elements on the basis of a heat balance model for the power storage elements, the heat balance model being represented using the element temperature and the environment temperature.

公开(公告)号：US20210293892A1

公开(公告)日：2021-09-23

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 ,  G01R31/389 ,  G01R31/374 ,  G01R31/382

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：US20160195588A1

公开(公告)日：2016-07-07

申请号：US14905137

申请日：2014-06-18

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yuichi IKEDA ,  Yohei TAO ,  Shigeki YAMATE

IPC: G01R31/36 ,  H01M10/42 ,  H01M10/48

CPC classification number: G01R31/3679 ,  G01R31/36 ,  G01R31/3648 ,  G01R31/3662 ,  G01R31/44 ,  H01M10/4257 ,  H01M10/48 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/30 ,  H02J7/00 ,  H02J7/04

Abstract: A deterioration state detection apparatus for detecting a deterioration state of capacity enabling charge or discharge of a nonaqueous electrolyte secondary battery includes: an acquisition unit that acquires a capacitance of the nonaqueous electrolyte secondary battery: and a determination unit that determines the deterioration state of capacity enabling charge or discharge of the nonaqueous electrolyte secondary battery, from change of the acquired capacitance.

Abstract translation: 一种用于检测能够进行非水电解质二次电池的充电或放电的容量的劣化状态的劣化状态检测装置，包括：获取非水电解质二次电池的电容的获取单元，以及确定能力的劣化状态的判定单元 非水电解质二次电池的充电或放电由所获取的电容的变化引起。

公开(公告)号：US20220188481A1

公开(公告)日：2022-06-16

申请号：US17598727

申请日：2020-03-25

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Shigeki YAMATE

IPC: G06F30/20 ,  H01M10/42

Abstract: A development support device includes a receiver that receives selection information about a degradation mechanism of a power storage device from a terminal device after user authentication of the terminal device, a simulation execution unit that simulates degradation of the power storage device by using the selected degradation mechanism based on the received selection information, and a transmitter that transmits a simulation result by the simulation execution unit or a simulation program executed in simulating the degradation of the power storage device to the terminal device.

公开(公告)号：US20220188479A1

公开(公告)日：2022-06-16

申请号：US17440579

申请日：2020-03-18

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke OKABE ,  Hiroyuki ENOMOTO ,  Shigeki YAMATE

IPC: G06F30/20 ,  H01M6/36 ,  H01M6/50

Abstract: The present invention provides a simulation method, a simulation device, and a simulation program. A method for simulating a cell in which the electrolyte is a molten salt, the simulation method involving simulating the behavior of the cell and including a process for raising the temperature of the molten salt.