公开(公告)号：US20220336912A1

公开(公告)日：2022-10-20

申请号：US17760954

申请日：2020-09-07

Applicant: GS Yuasa International Ltd.

Inventor： Tatsuya MORII ,  Shinsuke OKI ,  Yu KOJIMA

IPC: H01M50/308

Abstract: A vent plug (18) includes a head portion (35), a cylindrical portion (36), and a filter (34). The cylindrical portion (36) includes a cylinder portion (40), a screw thread portion (42), a slit (45), and a through hole (43). The filter (34) is disposed at a position where the through hole (43) is provided in a central axis (L) direction. The screw thread portion (42) intersects the slit (45) only at a first-peripheral screw thread portion.

公开(公告)号：US20220293932A1

公开(公告)日：2022-09-15

申请号：US17636268

申请日：2020-07-03

Applicant: GS Yuasa International Ltd.

Inventor： Daisuke YOSHIKAWA ,  Shinya OTANI

IPC: H01M4/525 ,  H01M4/505 ,  C01G53/00

Abstract: Provided is a positive active material for a nonaqueous electrolyte secondary battery which contains a lithium transition metal composite oxide, the lithium transition metal composite oxide having an α-NaFeO2 structure, containing Ni, Co and Mn as a transition metal (Me), and having an X-ray diffraction pattern attributable to a space group R3-m, in which a ratio of the full width at half maximum of a diffraction peak of the (003) plane to the full width at half maximum of a diffraction peak of the (104) plane, (003)/(104) at a Miller index hkl in X-ray diffraction measurement using a CuKα ray is 0.810 to 0.865, and a crystallite size is 410 Å or more.

公开(公告)号：US20220291286A1

公开(公告)日：2022-09-15

申请号：US17635497

申请日：2020-08-07

Applicant: GS Yuasa International Ltd.

Inventor： Satoru Narimoto ,  Takeyuki Shiraishi

IPC: G01R31/374 ,  G01R31/3828 ,  H02J7/00 ,  H01M10/48 ,  H01M10/44

Abstract: A correction method for an estimated state-of-charge (SOC) value of a battery cell 12 estimated by a current integration method, the method including: a charge step of a battery cell 12; a determination step of determining a correction value of the estimated value based on an amount of electricity charged during a period from a start of charge of the battery cell 12 to a decrease in a current value of a charge current to a predetermined threshold I_thr; and a correction step of correcting the estimated value based on the correction value determined in the determination step.

公开(公告)号：US11444357B2

公开(公告)日：2022-09-13

申请号：US16387738

申请日：2019-04-18

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Johannes Proell ,  Andreas Ringk

IPC: H01M50/403 ,  H01M50/46 ,  H01M50/449 ,  H01M10/04

Abstract: A process for joining a battery element (49) by at least one polymer thread (28, 30), comprises the method steps: a) applying a web-shaped or sheet-shaped electrode material (16) to a first separator web (12), b) heating the at least one polymer thread (28, 30) above the softening temperature of the polymer material, c) introducing at least one polymer thread (28, 30) between the first separator web (12) and a further second separator web (40) to be applied to the first separator web (12), and d) cooling the at least one polymer thread (28, 30) between the separator webs (12, 40) and forming at least one material-bond compound (46, 48) therebetween.

公开(公告)号：US11444351B2

公开(公告)日：2022-09-13

申请号：US16980705

申请日：2019-02-28

Applicant: GS Yuasa International Ltd.

Inventor： Ryutaro Nishikawa

IPC: H01M50/147 ,  H01M50/10 ,  H01M50/20 ,  H01M50/148

Abstract: An energy storage apparatus includes: an outer case having a box-shaped outer case and a lid covering one side of the outer case body in a predetermined direction; and an inner lid disposed on one side of one end portion of the energy storage device on the one side in the predetermined direction. The outer case body includes a pair of first side walls facing each other, and a pair of first fixing portions that are respectively provided on the pair of first side walls and attach the inner lid. The inner lid includes a pair of second fixing portions that are respectively connected with the pair of first fixing portions and are arranged at a predetermined distance from each other. The outer case body and the inner lid are fixed by connecting the pair of first fixing portions and the pair of second fixing portions with each other.

公开(公告)号：US11431060B2

公开(公告)日：2022-08-30

申请号：US16462296

申请日：2017-11-06

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Matthias Schroeder ,  Calin Iulius Wurm ,  Martin Manuel Hiller ,  Franz Fuchs

IPC: H01M10/0525 ,  H01M50/449

Abstract: The present invention relates to a separator arrangement (20) for an electrochemical battery cell (10) comprising an ionically conductive and electrically insulating separator layer (22), characterized in that the separator arrangement (20) further comprises a reduction layer (24) comprising a reductant, wherein the reduction layer (24) has a specific surface area which is in a range of not less than 10 m2/g, preferably of not less than 100 m2/g, for example of not less than 1000 m2/g, and wherein the reduction layer (24) is porous and has an open porosity in a range from not less than 10% to not more than 90%, preferably from not less than 30% to not more than 70%.

公开(公告)号：US11424507B2

公开(公告)日：2022-08-23

申请号：US16954079

申请日：2018-12-17

Applicant: GS Yuasa International Ltd.

Inventor： Takashi Akimoto

IPC: H01M50/30 ,  H01M50/147

Abstract: A lead-acid battery is provided with a lid. A communication chamber is formed inside the lid. In the communication chamber, a first distance between an inner wall and a vent hole in a sidewall is shorter than a second distance between the inner wall and an exhaust hole, and a tip of the inner wall is formed below the vent hole in a direction opposite to the first direction.

公开(公告)号：US11424452B2

公开(公告)日：2022-08-23

申请号：US16336932

申请日：2017-09-15

Applicant: GS Yuasa International Ltd.

Inventor： Hiroki Kagohashi ,  Ikumi Motoi

IPC: H01M4/62 ,  H01M4/14 ,  H01M10/06 ,  H01M4/02

Abstract: The organic expander in a negative electrode material of a lead-acid battery contains an S polymer having an aromatic ring and an L polymer having an aromatic ring, and a mass MS1 of the S polymer and a mass ML1 of the L polymer satisfy 0.05≤ML1/(ML1+MS1)≤0.15.

公开(公告)号：US20220252675A1

公开(公告)日：2022-08-11

申请号：US17613333

申请日：2020-05-21

Applicant: GS Yuasa International Ltd.

Inventor： Nan UKUMORI

IPC: G01R31/392 ,  G01R31/3842 ,  H02J7/00 ,  H01M10/48

Abstract: The estimation device 101 is provided with: an acquisition unit 201 for acquiring time-series data on the SOC of a power storage device; a decomposition unit 202 for decomposing a waveform indicating a fluctuation in the SOC in the time-series data into waveform components of a plurality of frequency regions; and an estimation unit 204 for estimating the deterioration of the power storage device on the basis of the intensities of the waveform components and a deterioration coefficient.

公开(公告)号：US20220246994A1

公开(公告)日：2022-08-04

申请号：US17614886

申请日：2020-05-29

Applicant: GS Yuasa International Ltd.

Inventor： Yasuyuki HAMANO ,  Hiroki KAGOHASHI

IPC: H01M10/06 ,  H01M4/66

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution, 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 positive current collector contains Sn in an amount of 0.95% by mass or more, 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, or the polymer compound contains a repeating structure of oxy C2-4 alkylene units.