公开(公告)号：US20170285110A1

公开(公告)日：2017-10-05

申请号：US15469438

申请日：2017-03-24

Applicant: GS Yuasa International Ltd.

Inventor： Tomoshige INOUE ,  Kenichi SEJIMA

IPC: G01R31/36

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：US20170254856A1

公开(公告)日：2017-09-07

申请号：US15442396

申请日：2017-02-24

Applicant: GS Yuasa International Ltd.

Inventor： Takeyuki SHIRAISHI

IPC: G01R31/36

Abstract: A monitoring device for an energy storage device mounted on a vehicle includes: a memory; and a processor, wherein the memory is configured to store at least one of data on an estimated value of a parking-time discharge current, which the energy storage device discharges during parking, and data for calculating the estimated value of the parking-time discharge current. The processor is configured to perform first SOC estimation processing in which an SOC of the energy storage device is estimated by integrating estimated values of the parking-time discharge current based on the data stored in the memory when the vehicle is in a parking state.

公开(公告)号：US09748560B2

公开(公告)日：2017-08-29

申请号：US15346295

申请日：2016-11-08

Applicant: GS Yuasa International Ltd.

Inventor： Tadashi Kakeya ,  Manabu Kanemoto ,  Mitsuhiro Kodama

IPC: H01M4/24 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  H01M10/24 ,  H01M4/36 ,  H01M4/134

CPC classification number: H01M4/242 ,  H01M4/134 ,  H01M4/24 ,  H01M4/36 ,  H01M4/383 ,  H01M4/62 ,  H01M4/628 ,  H01M4/661 ,  H01M4/667 ,  H01M10/24 ,  Y02E60/124

Abstract: Disclosed is a negative electrode for an alkaline secondary battery, which can suppress elution of iron to improve the long-period storage property of the battery capacity even under conditions in which elution of iron in a substrate into an electrolyte solution tends to occur, and which can also suppress lowering of initial capacity and increase in internal resistance. Even under conditions in which the elution of iron in the substrate into an electrolyte solution tends to occur, including a case where there is a thin conductive protecting layer at the surface or where the conductive protecting layer has defects, by adding magnesium or a magnesium compound to the negative electrode for an alkaline secondary battery (excluding the case where magnesium is contained as a constituent element of a hydrogen storage alloy), the elution of iron can be suppressed, and thereby, the long-period storage property of the battery capacity can be improved and the lowering of the initial capacity and the increase in internal resistance can be suppressed.

公开(公告)号：US20170244076A1

公开(公告)日：2017-08-24

申请号：US15435176

申请日：2017-02-16

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

Inventor： Eiji YUASA ,  Kentaro Shibuya

IPC: H01M2/10 ,  H01M2/20

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

Abstract: Provides is an energy storage apparatus which includes: a plurality of energy storage devices disposed in a row in a first direction, and a bus bar configured to connect external terminals of energy storage devices to each other, wherein the bus bar includes a first member having a first connection portion connected to the external terminal of one energy storage device and a first extension portion extending from the first connection portion; and a second member having a second connection portion connected to the external terminal of another energy storage device and a second extension portion extending from the second connection portion, and the first extension portion has a first conductive surface, and the second extension portion has a second conductive surface which is made to overlap with the first conductive surface in a separable manner in a state where the second conductive surface faces the first conductive surface.

公开(公告)号：US20170237057A1

公开(公告)日：2017-08-17

申请号：US15504641

申请日：2015-09-02

Applicant: GS Yuasa International Ltd,

Inventor： Shogo TSURUTA ,  Yuichiro YAMAMOTO ,  Ryutaro NISHIKAWA ,  Tsuyoshi HIDAKA

IPC: H01M2/20 ,  H01M10/0525 ,  H01G9/14 ,  H01G9/008 ,  H01G9/08

CPC classification number: H01M2/202 ,  H01G2/04 ,  H01G9/008 ,  H01G9/08 ,  H01G9/14 ,  H01G11/10 ,  H01G11/76 ,  H01M2/1077 ,  H01M2/204 ,  H01M2/206 ,  H01M10/0525 ,  Y02E60/13

Abstract: An energy storage apparatus provided with an energy storage device is provided with an electrode terminal disposed on the energy storage device, and a bus bar placed on a surface of the electrode terminal and connected to the electrode terminal. The bus bar includes a plurality of opening portions formed such that the surface of the electrode terminal is exposed.

公开(公告)号：US09692043B2

公开(公告)日：2017-06-27

申请号：US14778871

申请日：2014-03-26

Applicant: GS Yuasa International Ltd. ,  Tokyo University of Science Educational Foundation Administrative Organization

Inventor： Mitsue Takeuchi ,  Naoaki Yabuuchi ,  Shinichi Komaba ,  Daisuke Endo

IPC: H01B1/08 ,  H01M4/00 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  C01G45/12 ,  C01G49/00 ,  H01M4/525

CPC classification number: H01M4/131 ,  C01G45/1228 ,  C01G49/009 ,  C01P2002/76 ,  C01P2004/61 ,  H01B1/08 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525

Abstract: An active material for a nonaqueous electrolyte energy storage device contains a lithium-transition metal composite oxide having a crystal structure attributable to space group Fm-3m and represented by the compositional formula (1): Li1+xNbyMezApO2  (1) wherein Me is a transition metal including Fe and/or Mn, 0

公开(公告)号：US20170102436A1

公开(公告)日：2017-04-13

申请号：US15385418

申请日：2016-12-20

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  B60L3/00 ,  B60L11/18 ,  H01M10/48 ,  H01M10/0525

CPC classification number: G01R31/3679 ,  B60L3/0046 ,  B60L11/1857 ,  B60Y2200/91 ,  B60Y2200/92 ,  B60Y2400/112 ,  G01R31/3627 ,  G01R31/3651 ,  G01R31/3662 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/48 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0047 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).

公开(公告)号：US09608253B2

公开(公告)日：2017-03-28

申请号：US14281011

申请日：2014-05-19

Applicant: GS Yuasa International Ltd.

Inventor： Shin Osaki

IPC: H01M2/30 ,  H01M2/06 ,  H01M2/08 ,  H01M10/06

CPC classification number: H01M2/307 ,  H01M2/06 ,  H01M2/08 ,  H01M10/06 ,  H01M2220/20 ,  Y02E60/126

Abstract: A lead-acid battery terminal member includes: a terminal portion which is arranged in a resin-made cover for closing a container; and a cylindrical bushing which is connected to the terminal portion through a conducting portion. The bushing is embedded in the cover, and has a plurality of annular projecting portions formed on an outer periphery thereof. Poles extending from an electrode group arranged in the container are inserted into and are welded to the bushing. Surface roughness of a surface of the annular projecting portion which faces a resin forming the cover in an opposed manner is lower than surface roughness of a surface of a portion other than the annular projecting portion.

公开(公告)号：US20170084945A1

公开(公告)日：2017-03-23

申请号：US15275691

申请日：2016-09-26

Applicant: GS Yuasa International Ltd.

Inventor： Manabu Kanemoto ,  Tadashi Kakeya ,  Mitsuhiro Kodama

IPC: H01M10/04 ,  H01M4/78 ,  H01M2/18

CPC classification number: H01M10/045 ,  H01M2/022 ,  H01M2/0227 ,  H01M2/18 ,  H01M2/266 ,  H01M2/30 ,  H01M4/78 ,  H01M4/80 ,  H01M6/02 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/0459 ,  Y10T29/49108

Abstract: A layered electrode group according to the present invention includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other. The negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other. The positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at the positive electrode plate is sandwiched between two active material retaining portions at the negative electrode plate.

公开(公告)号：US09599674B2

公开(公告)日：2017-03-21

申请号：US15299915

申请日：2016-10-21

Applicant: GS Yuasa International Ltd.

Inventor： Takeyuki Shiraishi ,  Takeshi Itagaki

IPC: G01R31/02 ,  G01R31/327

CPC classification number: G01R31/327 ,  G01R31/3277 ,  G01R31/3278 ,  H02J7/0031 ,  H02J2007/0037 ,  H02J2007/004

Abstract: A switch failure detector, configured to be installed in an electric system including an electric storage device, includes at least one electronic switch connected in a path in which a charging current to the electric storage device and a discharging current from the electric storage device flow, at least one rectifier for passing a discharging current by bypassing the electronic switch when the electronic switch is turned off, and a controller for sending an on-command signal to the at least one electronic switch to turn on the electronic switch, and determining whether a switch failure detection process is executable based on a voltage of the electric storage device.