公开(公告)号：US09746522B2

公开(公告)日：2017-08-29

申请号：US14959807

申请日：2015-12-04

Applicant: GS Yuasa International Ltd.

Inventor： Takeyuki Shiraishi ,  Tomohiro Kawauchi ,  Takeshi Itagaki ,  Tomoshige Inoue ,  Daisuke Konishi

IPC: G01R31/02 ,  G01R31/327 ,  G01R31/00 ,  H02J7/00 ,  H01H47/00

CPC classification number: G01R31/327 ,  G01R31/006 ,  G01R31/3275 ,  H01H47/002 ,  H02J7/0029

Abstract: A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected, and to determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range.

公开(公告)号：US20170244079A1

公开(公告)日：2017-08-24

申请号：US15436392

申请日：2017-02-17

Applicant: GS Yuasa International Ltd. ,  Honda Motor Co., Ltd.

Inventor： Yosuke NISHIMURA ,  Hiroaki KAKIMURA

IPC: H01M2/10

CPC classification number: H01M2/1094 ,  H01G11/10 ,  H01G11/76 ,  H01G11/82 ,  H01M2/1016 ,  Y02E60/13

Abstract: An energy storage apparatus includes an energy storage device containing a case where a corner portion is formed by a first wall portion and a second wall portion, an opposedly facing member which opposedly faces the first wall portion, and an insulator covering at least a region of the opposedly facing member which opposedly faces the energy storage device. The opposedly facing member contains a body disposed along the first wall portion and an extension portion extending from the body along the second wall portion. The insulator contains a cover portion which extends to a distal end of the extension portion from a boundary position between the extension portion and the body along an opposedly facing surface of the extension portion which opposedly faces the second wall portion, is folded back at the distal end, and extends along an outer surface of the extension portion opposite to the second wall portion. A first inner surface of the cover portion which opposedly faces the opposedly facing surface of the extension portion includes a projecting portion which projects toward the opposedly facing surface.

公开(公告)号：US09741976B2

公开(公告)日：2017-08-22

申请号：US14498358

申请日：2014-09-26

Applicant: GS Yuasa International Ltd.

Inventor： Yasunori Okuno

IPC: H01M2/30 ,  H01M2/02 ,  H01M2/34 ,  H01G11/74 ,  H01G11/78 ,  H01G9/10 ,  H01G11/20

CPC classification number: H01M2/024 ,  H01G9/10 ,  H01G11/20 ,  H01G11/74 ,  H01G11/78 ,  H01M2/345 ,  H01M2200/20 ,  Y02E60/13

Abstract: An energy storage device includes an electrode assembly, a case, a terminal part, and a current collector, wherein the terminal part has: an external terminal having at least a part exposed to outside of the case; a conduction member configured to make the external terminal and the current collector conductive; a decoupling mechanism configured to decouple the conduction member, or hinder a conduction state of the conduction member; and an auxiliary terminal disposed spaced from the external terminal, and having at least a part exposed to the outside of the case, the auxiliary terminal being electrically connected to the current collector.

公开(公告)号：US20170222214A1

公开(公告)日：2017-08-03

申请号：US15416751

申请日：2017-01-26

Applicant: GS Yuasa International, Ltd.

Inventor： Susumu OBUCHI ,  Kohei FUJITA ,  Akinori HAZE

IPC: H01M4/20 ,  H01M4/56 ,  H01M4/66 ,  H01M10/12 ,  H01M4/80

CPC classification number: H01M4/20 ,  H01M4/56 ,  H01M4/662 ,  H01M4/80 ,  H01M10/06 ,  H01M10/12 ,  H01M2004/028

Abstract: A positive electrode plate for a lead-acid battery includes: a punched grid having grid crosspieces; and a positive electrode material. A corner portion of the grid crosspiece of the punched grid in a cross section perpendicular to an extending direction of the grid crosspiece is deformed, and a density of the positive electrode material after being subjected to formation is 4.1 [g/cm3] or more.

公开(公告)号：US20170212171A1

公开(公告)日：2017-07-27

申请号：US15415647

申请日：2017-01-25

Applicant: GS Yuasa International Ltd.

Inventor： Kenichi SEJIMA

IPC: G01R31/36 ,  B60L11/18 ,  H02J7/00

CPC classification number: G01R31/3658 ,  B60L11/1866 ,  G01R31/3637 ,  G01R31/3648 ,  H02J7/0016 ,  H02J7/0021

Abstract: A state estimation device includes: a voltage detecting unit that detects voltages of energy storage devices; and an estimating unit that estimates a charge amount difference between at least two of the energy storage devices. At a reference time point T0 during constant current charging, the estimating unit performs: specific voltage setting for setting, as a specific voltage V0, a voltage of a low-voltage energy storage device at the reference time point T0; time obtaining for obtaining a time point at which a voltage of a high-voltage energy storage device reaches the specific voltage V0; and charge amount difference estimating for estimating the charge amount difference between the at least two energy storage devices based on the reference time point T0, the time point obtained in the time obtaining process, and a current flowing through the plurality of energy storage devices during the constant current charging.

公开(公告)号：US20170207428A1

公开(公告)日：2017-07-20

申请号：US15390167

申请日：2016-12-23

Applicant: GS Yuasa International Ltd.

Inventor： Masamitsu TONONISHI

IPC: H01M2/06 ,  H01M2/30

CPC classification number: H01M2/06 ,  H01G11/74 ,  H01M2/1016 ,  H01M2/30

Abstract: An energy storage apparatus includes an energy storage device, an outer covering. The energy storage apparatus further includes an external connection terminal having a connecting portion to which external equipment is connected; and a conductive member assembled to the external connection terminal, and electrically connected to the energy storage device. The external connection terminal and the conductive member assembled to each other are sealed by the outer covering, the connecting portion of the external connection terminal is exposed from the outer covering, and a portion of the external connection terminal other than the connecting portion is sealed by the outer covering.

公开(公告)号：US09711764B2

公开(公告)日：2017-07-18

申请号：US14602156

申请日：2015-01-21

Applicant: GS Yuasa International Ltd.

Inventor： Ryota Mochizuki ,  Masao Kawata

IPC: H01M2/10 ,  H01M2/20

CPC classification number: H01M2/1016 ,  H01M2/1022 ,  H01M2/1072 ,  H01M2/1077 ,  H01M2/202 ,  H01M2/204 ,  H01M2/206

Abstract: An electric storage apparatus of the present invention includes: a plurality of electric storage devices aligned in a first direction; and a frame configured to hold the plurality of electric storage devices, the frame including: a first frame element that is arranged so as to face the plurality of electric storage devices from one side in a second direction orthogonal to the first direction and to directly or indirectly abut the plurality of electric storage devices; and a second frame element that is arranged so as to face the plurality of electric storage devices from the other side in the second direction, wherein the second frame element includes, between the second frame element and the plurality of electric storage devices, a holding part having projections that are respectively in contact with the plurality of electric storage devices.

公开(公告)号：US09705119B2

公开(公告)日：2017-07-11

申请号：US14719886

申请日：2015-05-22

Applicant: GS Yuasa International Ltd.

Inventor： Akihiko Miyazaki ,  Sumio Mori ,  Tomonori Kako ,  Kenta Nakai

IPC: H02J7/00 ,  H01M2/16 ,  H01M4/583 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/44 ,  H01M4/02 ,  H01M2/20 ,  H01M10/42

CPC classification number: H01M2/1673 ,  H01M2/166 ,  H01M2/1686 ,  H01M2/206 ,  H01M4/133 ,  H01M4/583 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/44 ,  H01M2004/027 ,  H01M2010/4292 ,  H02J7/007 ,  Y02E60/122 ,  Y02T10/7011

Abstract: An energy storage device comprises a positive electrode, a negative electrode, a separator arranged between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode has a negative substrate layer, and a negative composite layer arranged on the surface of the negative substrate layer. The separator has a separator substrate layer. The negative composite layer contains a non-graphitizable carbon having a particle diameter D50 of 2.0 μm or more and 6.0 μm or less. A corrected negative electrode density, which is defined as a value obtained by dividing, by a thickness of the separator substrate layer, a value obtained by multiplying a density of the negative composite layer by a thickness of the negative composite layer, is 1.2 (g/cm3) or more and 5.1 (g/cm3) or less.

公开(公告)号：US20170141371A1

公开(公告)日：2017-05-18

申请号：US15352464

申请日：2016-11-15

Applicant: GS Yuasa International Ltd. ,  Honda Motor Co., Ltd.

Inventor： Yoshimasa TOSHIOKA ,  Sunao TERAGUCHI

IPC: H01M2/14 ,  H01M2/20 ,  H01M2/10

CPC classification number: H01M2/14 ,  H01G11/08 ,  H01G11/10 ,  H01G11/76 ,  H01G11/82 ,  H01M2/1016 ,  H01M2/202

Abstract: An energy storage apparatus includes: a spacer; an energy storage device disposed adjacently to the spacer in a first direction and having an external terminal; and a cover member holding a bus bar connected to the external terminal and extending along the energy storage device, wherein the spacer has a first connecting portion to which the cover member is connected on an end portion thereof in a second direction, and the cover member has a second connecting portion which engages with the first connecting portion in a state where movement of the cover member in a direction away from the spacer in the second direction is restricted.

公开(公告)号：US20170092934A1

公开(公告)日：2017-03-30

申请号：US15312508

申请日：2014-12-19

Applicant: GS Yuasa International Ltd.

Inventor： Yasuyuki HAMANO ,  Ikumi MOTOI

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

Abstract: A negative electrode material contains an organic anti-shrink agent which is soluble in water, and the organic anti-shrink agent, when extracted from the negative electrode material with an alkali aqueous solution, has an average particle size of not less than 0.1 μm and not more than 9 μm in sulfuric acid having a specific gravity of 1.25. A lead-acid battery includes a negative electrode plate containing an organic anti-shrink agent having a S element content of 4000 μmol/g or more. The negative electrode contains 0.3 mg/cm3 or more of the S element in the organic anti-shrink agent.