公开(公告)号：US20220344662A1

公开(公告)日：2022-10-27

申请号：US17762624

申请日：2020-09-24

Applicant: GS Yuasa International Ltd.

Inventor： Ryotaro WAMA ,  Akihito TSUJINAKA

IPC: H01M4/62 ,  H01M4/14 ,  H01M4/583

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains an organic expander and carbonaceous material. The organic expander contains a unit of a bisarene compound and a unit of a monocyclic aromatic compound having a hydroxy group. The unit of a bisarene compound is at least one selected from the group consisting of a unit of a bisphenol S compound and a unit of a bisphenol A compound.

公开(公告)号：US11480619B2

公开(公告)日：2022-10-25

申请号：US16758433

申请日：2018-10-22

Applicant: GS Yuasa International Ltd.

Inventor： Naoki Inoue

IPC: G01R31/3835 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/48 ,  H02J7/00 ,  H01M4/02

Abstract: An estimation apparatus estimates an internal state of an energy storage device having a positive electrode, a negative electrode including a negative active material that contains SiOx, and a nonaqueous electrolyte, the energy storage device changing from a positive-electrode limiting type, in which a discharge capacity is limited by the positive electrode, to a negative-electrode limiting type, in which the discharge capacity is limited by the negative electrode. The estimation apparatus estimates the internal state of the energy storage device by using a voltage value and an energization amount in a predetermined voltage range of the energy storage device or at a predetermined measured voltage value, or based on information on the shape of a discharge curve of the energy storage device.

公开(公告)号：US20220328844A1

公开(公告)日：2022-10-13

申请号：US17608870

申请日：2020-05-29

Applicant: GS Yuasa International Ltd.

Inventor： Yasunori MIZOGUCHI ,  Hiroki KAGOHASHI

IPC: H01M4/68 ,  H01M4/14 ,  H01M10/06

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, an electrolyte solution, and a polymer compound, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the Ca content of the positive current collector is 0.13% by mass or less, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C2-4 alkylene units.

公开(公告)号：US11469422B2

公开(公告)日：2022-10-11

申请号：US16640668

申请日：2018-11-22

Applicant: GS Yuasa International Ltd.

Inventor： Morito Tanabe ,  Kohei Tsujita ,  Yuta Osugi

IPC: H01M4/66 ,  H01M50/46

Abstract: A plate includes a current collector, an intermediate layer layered on the current collector, and an active material layer layered on the intermediate layer. The intermediate layer contains conductive particles and insulating particles. At least a portion of an end edge of the intermediate layer is not covered with the active material layer. The intermediate layer hays a higher mass content of the insulating particles in a region not covered with the active material layer than that in a region covered with the active material layer.

公开(公告)号：US20220311089A1

公开(公告)日：2022-09-29

申请号：US17839186

申请日：2022-06-13

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Toshiki Kusunoki ,  Osamu Ushijima

IPC: H01M50/30 ,  H01M50/35 ,  H01M50/317

Abstract: An energy storage apparatus includes one or more energy storage devices and an outer housing that houses the one or more energy storage devices. The outer housing includes an opening that allows communication between an interior and an exterior of the outer housing. The opening is sealed by a first pressure adjuster and a second pressure adjuster arranged complementary to each other. The first pressure adjuster allows passage of gas and prohibits passage of liquid. The second pressure adjuster prohibits passage of the gas and the liquid, and releases an internal pressure in the interior of the outer housing when the internal pressure exceeds a predetermined pressure.

公开(公告)号：US20220302436A1

公开(公告)日：2022-09-22

申请号：US17832047

申请日：2022-06-03

Applicant: GS Yuasa International Ltd.

Inventor： Ryosuke KANEKO ,  Tetsuya MURAI

IPC: H01M4/1397 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0562 ,  H01M50/409

Abstract: An aspect of the present invention is an electrode which includes an active material layer, and an insulating layer layered on a surface of the active material layer, in which the insulating layer contains a filler and a first binder, and a content of the first binder in the insulating layer is 8% by mass or more. Another aspect of the present invention is an electrode which includes an active material layer, and an insulating layer layered on a surface of the active material layer, in which the insulating layer is a dry coating product containing a filler and a binder. Still another aspect of the present invention is a method for manufacturing an electrode, which includes the steps of forming an active material layer, and laminating an insulator containing a filler and a binder on a surface of the active material layer to form an insulating layer, in which the insulator does not contain a solvent.

公开(公告)号：US11450888B2

公开(公告)日：2022-09-20

申请号：US16637849

申请日：2018-08-10

Applicant: GS Yuasa International Ltd. ,  THE DOSHISHA

Inventor： Hiroe Nakagawa ,  Katsuyuki Takahashi ,  Minoru Inaba ,  Takayuki Doi ,  Ryo Matsumoto

IPC: H01M4/00 ,  H01M10/0569 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/02

Abstract: One aspect of the present invention is a nonaqueous electrolyte for an energy storage device comprising: an alkali metal salt; a first aprotic organic solvent coordinating to an alkali metal ion in the alkali metal salt, and not including a fluorine atom; a second aprotic organic solvent including a fluorine atom; and an additive comprising a polar group and a group including a fluorine atom, wherein a content of the alkali metal salt is no less than 0.9 mol/kg and less than 2 mol/kg, a content of the first aprotic organic solvent with respect to the content of the alkali metal salt in terms of a molar ratio is no less than 0.7 and no greater than 4, and a content of the second aprotic organic solvent with respect to a total amount of the first aprotic organic solvent, the second aprotic organic solvent and the additive is no less than 40% by volume.

公开(公告)号：US20220285776A1

公开(公告)日：2022-09-08

申请号：US17636619

申请日：2020-09-03

Applicant: GS Yuasa International Ltd. ,  Kobelco Construction Machinery Co., Ltd.

Inventor： Yasutaka Miyawaki ,  Yoshihiro Nakamura ,  Yoshiki Karata

IPC: H01M50/258 ,  H01M50/209 ,  H01M50/271

Abstract: A power storage apparatus includes: a first end component and a second end component that interpose power storage devices in a first direction; and a first side component and a second side component that interpose the power storage devices in a second direction. The first end component includes a first end connector connected to the first side component and a second end connector connected to the second side component. The first side component includes a first side connector connected to the first end connector. The second side component includes a second side connector connected to the second end connector. The first end connector and the first side connector overlap one another in the first direction, and are joined. The second end connector and the second side connector overlap one another in the second direction, and are joined.

公开(公告)号：US20220271550A1

公开(公告)日：2022-08-25

申请号：US17636523

申请日：2020-08-27

Applicant: GS Yuasa International Ltd.

Inventor： Hiroki MATSUI ,  Yuta KASHIWA ,  Seijiro OCHIAI

IPC: H02J7/00 ,  H01M10/48 ,  G01R31/3842

Abstract: The present invention comprises a voltage detection circuit for measuring the voltage of an assembled battery 20 in which power storage elements 100 are serially connected, a current detection resistor for detecting the current in the assembled battery 20, and a CPU 33 for calculating, inter alia, the amount of energization electricity from continuous charging or continuous discharging of the assembled battery 20. The CPU 33 controls input/output for when the assembled battery 20 is charged/discharged so that ΔSOC, which is the value obtained by dividing the amount of energization electricity by the actual capacity of the assembled battery 20, does not exceed an upper limit ΔSOC.

公开(公告)号：US20220238859A1

公开(公告)日：2022-07-28

申请号：US17614889

申请日：2020-05-29

Applicant: GS Yuasa International Ltd.

Inventor： Hiroki KAGOHASHI

IPC: H01M4/14 ,  H01M10/06

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains a polymer compound, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum. Alternatively, the negative electrode material contains a polymer compound having a repeating structure of oxy C2-4 alkylene units. A ratio: Cn/Sn of a content Cn of the polymer compound in the negative electrode material to a specific surface area Sn of the negative electrode material is 25 ppm·m−2·g or more.