公开(公告)号：US10830823B2

公开(公告)日：2020-11-10

申请号：US15469438

申请日：2017-03-24

Applicant: GS Yuasa International Ltd.

Inventor： Tomoshige Inoue ,  Kenichi Sejima

IPC: G01R31/374 ,  G01R31/367

Abstract: Provided is an estimation device for estimating an actual capacity of an energy storage device or a total reduction amount of the actual capacity. The estimation device includes a processor which is configured to calculate the actual capacity of the energy storage device or the total reduction amount of the actual capacity based on approximation data where a capacity change curve indicative of a transition of the actual capacity or a transition of the total reduction amount of the actual capacity with respect to an elapsed time is approximated by a plurality of straight lines.

公开(公告)号：US20200335738A1

公开(公告)日：2020-10-22

申请号：US16769939

申请日：2018-11-29

Applicant: GS Yuasa International Ltd.

Inventor： Kazuto MAEDA ,  Hirokazu KAMBAYASHI

IPC: H01M2/04 ,  H01M2/30 ,  H01M2/12 ,  H01G11/78 ,  H01G11/26 ,  H01G11/14

Abstract: An energy storage device includes: a case including a case body and a lid; and electrode terminals (positive electrode terminal, negative electrode terminal) fixed to the lid. A junction portion for joining the case body and the lid to each other is formed on a surface of the case on an electrode terminal side. The lid includes recessed portions disposed along and adjacent to the junction portion without being disposed between the electrode terminal and the junction portion.

公开(公告)号：US20200303777A1

公开(公告)日：2020-09-24

申请号：US16754784

申请日：2018-10-15

Applicant: GS Yuasa International Ltd.

Inventor： Yudai KAWASOE ,  Kenta NAGAMINE ,  Keisuke ANAMI

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/13 ,  H01M10/0568

Abstract: A nonaqueous electrolyte secondary battery disclosed herein includes a positive electrode plate including a positive composite layer, a negative electrode plate including a negative composite layer, and a nonaqueous electrolyte, in which the negative composite layer is composed of a facing portion facing a surface of the positive composite layer, and a non-facing portion that is on the same surface as the facing portion and does not face the surface of the positive composite layer, and the area ratio of the non-facing portion to a combined area of the facing portion and the non-facing portion of the negative composite layer is 7% or more, and the nonaqueous electrolyte contains a fluorinated carbonate and a cyclic sulfone compound.

公开(公告)号：US20200274149A1

公开(公告)日：2020-08-27

申请号：US16646115

申请日：2018-09-28

Applicant: GS Yuasa International Ltd. ,  Robert Bosch GmbH

Inventor： Kohei TSUJITA ,  Yuta OHSUGI ,  Morito TANABE ,  Hiroshi MUKAI ,  Yukihiro WATARU ,  Toru TABUCHI

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/13 ,  H01G11/30

Abstract: An aspect of the present invention is an electrode for an energy storage device including a conductive substrate, an intermediate layer, and an active material layer in this order. In this electrode, the intermediate layer includes a conductive agent, an inorganic oxide, and a binder, and the content of the inorganic oxide in the intermediate layer is 30% by mass or more and 90% by mass or less.

公开(公告)号：US20200273635A1

公开(公告)日：2020-08-27

申请号：US16647424

申请日：2018-09-14

Applicant: GS Yuasa International Ltd.

Inventor： Kazuto MAEDA ,  Shohei YAMAO

IPC: H01G11/80 ,  H01M2/30

Abstract: An energy storage device includes an electrode terminal including a plate-like terminal body and a shaft portion connected to the terminal body, and an upper insulating member disposed between the terminal body and the case, the upper insulating member having a through-hole through which the shaft portion penetrates. The upper insulating member has a sidewall portion disposed along an end surface of the terminal body. The sidewall portion is provided with a thin portion at a position on a side of a center point of the shaft portion in a direction orthogonal to an extending direction of the sidewall portion in a plan view.

公开(公告)号：US20200269699A1

公开(公告)日：2020-08-27

申请号：US16066240

申请日：2017-01-11

Applicant: GS Yuasa International Ltd.

Inventor： Yuki Nakanishi ,  Kazuhiro Sugie ,  Takeshi Chiba

IPC: B60L3/00 ,  B60K6/28 ,  B60L58/12 ,  B60L58/18 ,  B60R16/033

Abstract: A vehicle-mounted power supply system according to the present invention is provided with: a main battery; a sub-battery; a voltage regulating unit which regulates the voltage of power supplied from the main battery and the sub-battery; and a state detecting unit which detects the state of the sub-battery. The state detecting unit is provided with: a first calculating unit which calculates a first internal resistance on the basis of a drop in the voltage across the sub-battery and an inrush current when the sub-battery supplies power to a load; a second calculating unit which manipulates the voltage regulating unit immediately following the calculation of the first internal resistance, and subsequently at least one more time, to cause the sub-battery to be forcibly discharged, and calculates a second internal resistance on the basis of a relationship between the voltage across the sub-battery and the current flowing thereinto when forcibly discharged; and a state determining unit which determines the state of the sub-battery on the basis of the first internal resistance and changes in the second internal resistance.

公开(公告)号：US20200243869A1

公开(公告)日：2020-07-30

申请号：US16637049

申请日：2018-07-25

Applicant: GS Yuasa International Ltd.

Inventor： Akinori HAZE ,  Kohei FUJITA ,  Susumu OBUCHI

IPC: H01M4/73 ,  H01M10/06 ,  H01M2/16

Abstract: The following relational expression holds among: the number (L1) of first inner ribs (320) extending toward a first vertex-side portion (A11) between a position of a first vertex (C1) and a position separated therefrom by a first reference length; the number (M1) of first inner ribs (320) connected to both a specific second inner rib (310V) and the first vertex-side portion (A11) of a first frame rib (210L); the number (P1) of second inner ribs (310) extending toward a first vertex-side portion (A21) between the position of the first vertex (C1) and a position separated therefrom by the first reference length; and the number (Q1) of second inner ribs (310) connected to both a specific first inner rib (320V) and the first vertex-side portion (A21) of a second frame rib (220D), (M1/L1)>(Q1/P1)

公开(公告)号：US20200235358A1

公开(公告)日：2020-07-23

申请号：US16635917

申请日：2018-08-06

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yoshitaka ISHIDA ,  Hiroshi MUKAI ,  Kazuya OKABE ,  Koichi NISHIYAMA

IPC: H01M2/10 ,  H01M2/16 ,  H01G9/08

Abstract: An energy storage module according to an aspect of the present invention includes: a plurality of energy storage devices each including a case; a glass paper sheet provided between the energy storage devices, brought into contact with the case, and mainly composed of a glass fiber; and a holding member holding the plurality of energy storage devices and the glass paper sheet, wherein the glass paper sheet is compressed between the energy storage devices.

公开(公告)号：US20200227693A1

公开(公告)日：2020-07-16

申请号：US16633531

申请日：2018-07-24

Applicant: Robert Bosch GmbH ,  GS Yuasa International Ltd.

Inventor： Yukio ENOMOTO

IPC: H01M2/06 ,  H01M2/04 ,  H01M2/26 ,  H01M2/30

Abstract: Provided is an energy storage device which can sufficiently reduce a resistance of a current path. An energy storage device includes: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plate portion housed in the outer case, and having a first surface to which the other end of the conductive shaft portion is connected and a second surface to which the tab is connected, wherein a size of the conductive plate portion and a size of the tab are respectively set larger than a size of the external terminal in a planar direction of the lid plate.

公开(公告)号：US10714739B2

公开(公告)日：2020-07-14

申请号：US15748965

申请日：2016-07-21

Applicant: GS Yuasa International Ltd.

Inventor： Kenji Izumi ,  Yu Kojima ,  Mikihito Hasegawa ,  Shinsuke Ooki

IPC: H01M4/14 ,  H01M2/36 ,  H01M4/06 ,  H01M10/08 ,  H01M4/62 ,  H01M4/02

Abstract: Disclosed is a lead-acid battery including: a battery container; an electrolyte and an electrode plate group in the battery container; and a battery container cover that hermetically seals an opening of the battery container, wherein the electrode plate group includes a positive electrode plate including a positive electrode active material, a negative electrode plate including a negative electrode active material, and a separator interposed between the positive electrode plate and the negative electrode plate, the battery container cover is provided with a liquid port, a liquid port plug that closes the liquid port, and a sleeve that hangs down from the liquid port to a prescribed liquid surface height of the electrolyte, a sodium ion concentration contained in the electrolyte is 1 mmol/L to 90 mmol/L, and a specific surface area of the positive electrode active material is 5 m2/g to 9 m2/g.