公开(公告)号：US20220373608A1

公开(公告)日：2022-11-24

申请号：US17754230

申请日：2020-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Ryosuke TAKEHANA ,  Nan UKUMORI

IPC: G01R31/392 ,  G01R31/382 ,  G01R31/374 ,  H02J7/00

Abstract: An estimation device 4 is provided with: an acquisition unit 41 for acquiring time-series data about an SOC of a power storage element; a specification unit 41 for specifying a fluctuation range of the SOC in the time-series data and an SOC representative value representing an SOC region in the fluctuation range; and an estimation unit 41 for estimating a shape change of the power storage element on the basis of the specified fluctuation range and the specified representative value.

公开(公告)号：US11502369B2

公开(公告)日：2022-11-15

申请号：US16479878

申请日：2018-01-25

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Kohei Kadota ,  Riku Aikata

IPC: F16K17/16 ,  H01M50/342 ,  H01G9/12 ,  H01M50/103 ,  H01M50/15 ,  H01M50/147

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：US20220349941A1

公开(公告)日：2022-11-03

申请号：US17765249

申请日：2020-10-02

Applicant: GS Yuasa International Ltd.

Inventor： Yasunori MIZOGUCHI ,  Yasuyuki HAMANO

IPC: G01R31/367 ,  G01R31/392 ,  G01R31/3842 ,  G01R31/374 ,  H02J7/00 ,  H01M10/48 ,  H01M10/42

Abstract: An estimation device includes: a derivation unit (31) configured to derive a derivation history based on a current, a voltage of a lead-acid battery and a temperature of the lead-acid battery; a specifying unit (31) configured to specify one or more physical quantities based on the derivation history, and one or more relationships selected from a first relationship between a first history and an amount of positive active material, a second relationship between a second history and a specific surface area of a positive electrode material, a third relationship between a third history and bulk density of the positive active material, a fourth relationship between a fourth history and positive active material particles in a cluster size, a fifth relationship between a fifth history and a cumulative amount of lead sulfate of a negative electrode material, a sixth relationship between a sixth history and a specific surface area of the negative electrode material, a seventh relationship between a seventh history and a corrosion amount of a positive electrode grid, an eighth relationship between an eighth history and resistivity of a positive electrode plate, and a ninth relationship between a ninth history and resistivity of a negative electrode plate; and an estimation unit (31) configured to estimate a degree of deterioration of the lead-acid battery.

公开(公告)号：US20220344760A1

公开(公告)日：2022-10-27

申请号：US17630276

申请日：2020-07-06

Applicant: GS Yuasa International Ltd.

Inventor： Takaaki ISHIKAWA ,  Takuya NAKAHATA

IPC: H01M50/244 ,  H01M50/211 ,  H01M50/249

Abstract: An energy storage apparatus includes: an energy storage device; an adjacent member arranged adjacent to the energy storage device; and an adhesive material which adheres the energy storage device and the adjacent member to each other, in which the energy storage device includes an adhesive surface to be adhered to the adjacent member by the adhesive material, and the adhesive surface includes an uneven surface on which an uneven shape spreads in a planar shape.

公开(公告)号：US20220320568A1

公开(公告)日：2022-10-06

申请号：US17635511

申请日：2020-08-19

Applicant: GS Yuasa International Ltd.

Inventor： Kenta UEHIRA ,  Masashi TAKANO

IPC: H01M10/04 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/34 ,  H01M10/44

Abstract: A method for manufacturing an energy storage device according to one aspect of the present invention includes: housing, in a case, an electrode assembly in which a negative electrode and a positive electrode are stacked; housing an electrolyte solution in the case; housing a gas, soluble in the electrolyte solution, in the case after the electrolyte solution is housed in the case; and sealing the case in a state where the gas soluble in the electrolyte solution is housed in the case.

公开(公告)号：US11462788B2

公开(公告)日：2022-10-04

申请号：US16635510

申请日：2018-07-24

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yukio Enomoto ,  Hayato Usui

IPC: B23K20/10 ,  H01M50/16 ,  H01M50/166 ,  H01M50/147 ,  H01M50/543 ,  B23K103/10 ,  B23K101/36

Abstract: Provided is a method for manufacturing an energy storage device. In the method of manufacturing an energy storage device, a lid assembly is formed by integrating a lid plate covering an opening of a case which houses a plate, an external terminal exposed to outside of the lid plate, and a conductive plate portion disposed inside the lid plate in an overlapping manner. The lid assembly is disposed between a vibrating jig and a receiving jig, a tab of the plate is disposed between the conductive plate portion and the vibrating jig, and ultrasonic welding is applied to the tab and the conductive plate portion.

公开(公告)号：US20220268849A1

公开(公告)日：2022-08-25

申请号：US17621031

申请日：2020-06-17

Applicant: GS Yuasa International Ltd.

Inventor： Isamu KURISAWA ,  Osamu KASHIMA

IPC: G01R31/392 ,  G01R31/389 ,  H02J7/00

Abstract: This decision method: determines whether measurement data pertaining to a plurality of power storage elements included in a system is periodically stored in a storage device; when the measurement data is determined as stored, determines, on the basis of the acquired measurement data, whether each of the plurality of power storage elements reaches the end of life within a period corresponding to a standard use period at a prescribed temperature; and decides that a power storage element determined as reaching the end of life is required to be replaced.

公开(公告)号：US11411409B2

公开(公告)日：2022-08-09

申请号：US16604086

申请日：2018-04-27

Applicant: GS Yuasa International Ltd.

Inventor： Tomoshige Inoue ,  Katsuhisa Michinaga ,  Takatomo Yoshioka ,  Takashi Ikeda ,  Kota Seto

IPC: H02J7/00

Abstract: A management device 21 comprising a main control part 23 that, during charging of a plurality of power storage elements 41 connected in series, outputs a first pull-down signal to a converter 11 so as to lower a charging voltage when the cell voltage of any of the power storage elements 41 is equal to or greater than a first threshold value.

公开(公告)号：US20220229117A1

公开(公告)日：2022-07-21

申请号：US17615014

申请日：2020-05-19

Applicant: GS Yuasa International Ltd.

Inventor： Toshihiro YABU

IPC: G01R31/367 ,  G06F3/0482 ,  H02J3/32 ,  H02J7/00 ,  G01R31/392

Abstract: In the present invention, a display unit 50 of a pattern generation device 5 displays a reception screen for receiving a selection and/or an input regarding charging/discharging of a power storage system having a power storage device. An operation unit 51 receives, in the reception screen, a selection made from among multiple kinds of operations regarding charging/discharging. On the basis of the operation selected through the operation unit 51, a control unit 53 generates pattern data which is used for predicting a deterioration of the power storage device and which indicates transitions of charging/discharging amounts.

公开(公告)号：US11380933B2

公开(公告)日：2022-07-05

申请号：US15790923

申请日：2017-10-23

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Morteza Fakhri ,  Simon Tippmann

IPC: H01M10/48 ,  H01M10/42 ,  H01M10/0525 ,  G01R31/396 ,  H01M50/342 ,  H01M50/581

Abstract: A system (10) for testing a battery cell (1) by creating at least one of the effects of internal short circuit within the cell (1) with at least one cathode, at least one anode, at least one sensor (3) and at least one conductive heating element (2), comprising at least one resistive heat element (5), wherein at least the resistive heat element (5) is assembled within the cell (1) for simulating an internal short circuit.