公开(公告)号：US10003061B2

公开(公告)日：2018-06-19

申请号：US14731284

申请日：2015-06-04

Applicant: GS Yuasa International Ltd.

Inventor： Taro Yamafuku ,  Sumio Mori

IPC: H01M2/02 ,  H01M2/12 ,  H01M2/18 ,  H01M2/04 ,  H01M2/36 ,  H01G11/80 ,  H01G11/20 ,  H01G11/58 ,  H01M10/04 ,  H01M2/14 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M2/18 ,  H01G11/20 ,  H01G11/58 ,  H01G11/80 ,  H01M2/0217 ,  H01M2/0473 ,  H01M2/1235 ,  H01M2/14 ,  H01M2/365 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  Y02E60/13 ,  Y10T29/4911

Abstract: An energy storage device includes: an electrode assembly; a case for storing the electrode assembly therein, the case having an electrolyte solution sealing portion where an electrolyte solution pouring hole formed in the case is sealed; and at least one partition member arranged in a gap formed between the case and the electrode assembly stored in the case. The partition member partitions the gap in the winding axis direction of the electrode assembly by surrounding the electrode assembly in the winding direction of the electrode. The electrolyte solution pouring hole is arranged at a position closer to one end of the electrode assembly than the partition member close to one end of the case is in the winding axis direction.

公开(公告)号：US09865855B2

公开(公告)日：2018-01-09

申请号：US15052330

申请日：2016-02-24

Applicant: GS Yuasa International Ltd.

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

IPC: H01M2/16 ,  H01M4/36 ,  H01M4/583 ,  H01M4/62 ,  H01G11/42 ,  H01G11/52 ,  H01G11/26 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M2/1673 ,  H01G11/26 ,  H01G11/42 ,  H01G11/52 ,  H01M2/166 ,  H01M2/1686 ,  H01M4/133 ,  H01M4/364 ,  H01M4/366 ,  H01M4/583 ,  H01M4/587 ,  H01M4/62 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/021

Abstract: An energy storage device includes a positive electrode, a negative electrode, and an insulating layer arranged between these electrodes to electrically insulate these electrodes. The negative electrode includes a composite layer containing active material particles. The composite layer of the negative electrode, and the positive electrode are arranged to face each other across the insulating layer. The insulating layer contains electrically insulating particles, and is made porous by a gap between these particles. The composite layer of the negative electrode is made porous by a gap between the active material particles, and “−0.8≦Log B−Log A≦1.0” is satisfied in which in a pore distribution of the composite layer, a pore peak diameter is represented by A (μm), and in a pore distribution of the insulating layer, a peak diameter is represented by B (μm).

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：US09509148B2

公开(公告)日：2016-11-29

申请号：US14060670

申请日：2013-10-23

Applicant: GS Yuasa International Ltd.

Inventor： Tomonori Kako ,  Hidefumi Hasegawa ,  Katsushi Nishie ,  Sumio Mori

IPC: H01M4/13 ,  H01M4/36 ,  H01M4/62 ,  H01M2/16 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/42 ,  H02J7/00 ,  H01G11/60

CPC classification number: H02J7/00 ,  H01G11/60 ,  H01M2/1646 ,  H01M2/166 ,  H01M2/1686 ,  H01M4/13 ,  H01M4/366 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7011 ,  Y02T10/7022 ,  Y10T29/49115

Abstract: Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate.

公开(公告)号：US20130244072A1

公开(公告)日：2013-09-19

申请号：US13793640

申请日：2013-03-11

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Akihiko MIYAZAKI ,  Sumio Mori ,  Tomonori Kako

IPC: H01M10/0587 ,  H01M10/04 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01G11/52 ,  H01M2/1686 ,  H01M2/263 ,  H01M6/10 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/125 ,  H01M10/286 ,  H01M2006/106 ,  Y02E60/13 ,  Y10T29/49108 ,  Y10T29/49114 ,  Y10T29/52

Abstract: An energy storage device includes: a core; and a wound body including, layered and wound around the core: a positive electrode, a negative electrode, and two separators, one of which is interposed between the positive electrode and the negative electrode and each having a first surface and a second surface. The first surface has thermal bonding properties superior to thermal bonding properties of the second surface, and at least one of the two separators is bonded to the core via the first surface thereof.

Abstract translation: 一种储能装置，包括：芯; 卷绕体，包括层叠并卷绕在芯上的正极，负极和两个隔板，其中一个隔着间隔设置在正极和负极之间，每个具有第一表面和第二表面。 第一表面具有优于第二表面的热粘合性能的热粘合性质，并且两个隔板中的至少一个通过其第一表面结合到芯。

公开(公告)号：US11283136B2

公开(公告)日：2022-03-22

申请号：US14863927

申请日：2015-09-24

Applicant: GS Yuasa International Ltd.

Inventor： Akihiko Miyazaki ,  Sumio Mori ,  Tomonori Kako

IPC: H01M2/16 ,  H01M50/449 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/058 ,  H01M50/403

Abstract: An energy storage device includes a positive electrode provided with a positive composite layer containing a positive active material, a negative electrode provided with a negative composite layer containing a negative active material, and a separator partitioning between the positive electrode and the negative electrode, wherein the separator includes a substrate uniaxially drawn into a sheet shape and a coating layer coating at least one of surfaces of the substrate, and the coating layer has an anisotropic structure with orientation in a direction different from a drawing direction of the substrate.

公开(公告)号：US10748715B2

公开(公告)日：2020-08-18

申请号：US16095613

申请日：2017-04-25

Applicant: GS Yuasa International Ltd.

Inventor： Kazuki Kawaguchi ,  Akihiko Miyazaki ,  Sumio Mori

IPC: H01G11/24 ,  H01G11/70 ,  H01G11/28 ,  H01G11/86 ,  H01M4/139 ,  H01M4/66 ,  H01M4/13

Abstract: An energy storage device is provided in which a decrease in power caused by repetitive charge-discharge in a high-temperature environment is suppressed. In the present embodiment, an energy storage device and a method for manufacturing the energy storage device are provided, the energy storage device including an electrode which includes: an active material layer including a particulate active material; and a conductive layer layered on the active material layer and including a conduction aid. An average secondary particle diameter of the active material is 2.5 μm or more and 6.0 μm or less. A surface roughness Ra of the conductive layer on a side on the active material layer is 0.17 μm or more and 0.50 μm or less.

公开(公告)号：US09455091B2

公开(公告)日：2016-09-27

申请号：US14497781

申请日：2014-09-26

Applicant: GS Yuasa International Ltd.

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

IPC: H01G9/042 ,  H01G9/15 ,  H01M4/505 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01G9/042 ,  H01G9/0425 ,  H01G9/15 ,  H01M4/505 ,  H01M4/525 ,  H01M4/667 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: An electric storage device having a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The positive electrode has a positive substrate layer, a positive composite layer containing a positive active material, and an undercoat layer located between the positive substrate layer and the positive composite layer. A density of the positive composite layer is 2.1 g/cm3 or more and 2.7 g/cm3 or less. The positive electrode has the rate of increase in sheet resistance after a solvent immersion test of 30% or less. The undercoat layer contains a binder selected from the group consisting of chitosan derivatives, cellulose derivatives and acrylic acid derivatives.

Abstract translation: 具有正极，负极，位于正极和负极之间的隔膜的非蓄电装置以及非水电解质。 该正电极具有正的衬底层，含有正极活性材料的正性复合层，以及位于正性衬底层和正性复合层之间的底涂层。 正极复合层的密度为2.1g / cm 3以上且2.7g / cm 3以下。 正极在溶剂浸渍试验后的薄层电阻增加率为30％以下。 底涂层含有选自壳聚糖衍生物，纤维素衍生物和丙烯酸衍生物的粘合剂。

公开(公告)号：US20150093620A1

公开(公告)日：2015-04-02

申请号：US14503657

申请日：2014-10-01

Applicant: GS Yuasa International Ltd.

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

IPC: H01M10/04 ,  H01M2/02

CPC classification number: H01M10/0431 ,  H01M2/02 ,  H01M2/0202 ,  H01M2/0217 ,  H01M2/0237 ,  H01M2/0277 ,  H01M2/18

Abstract: An electric storage device includes: an electrode assembly in which electrodes are wound such that paired curved portions and a straight portion connecting the paired curved portions are formed; a case which houses the electrode assembly, the case comprising a convex part protruding toward the straight portion of the electrode assembly to support the straight portion; and a support portion which supports the curved portion toward an inside of the electrode assembly.

Abstract translation: 一种蓄电装置，其特征在于，包括：电极组合体，其中形成电极，使得成对的弯曲部分和连接所述成对弯曲部分的直线部分形成; 容纳电极组件的壳体，所述壳体包括朝向所述电极组件的直线部分突出以支撑所述直线部分的凸部; 以及支撑部分，其将弯曲部分朝向电极组件的内部支撑。

公开(公告)号：US20140091760A1

公开(公告)日：2014-04-03

申请号：US14037729

申请日：2013-09-26

Applicant: GS Yuasa International Ltd.

Inventor： Akihiko Miyazaki ,  Sumio Mori

IPC: H01M2/16

CPC classification number: H01M2/16 ,  H01M2/166 ,  H01M2/1686 ,  H01M2/18 ,  H01M2220/20 ,  Y02E60/122

Abstract: Provided is an electric storage device provided with: a positive electrode including a positive electrode substrate and a positive electrode mixture layer, the positive electrode mixture layer being formed on the positive electrode substrate and containing a positive electrode active material; a negative electrode including a negative electrode substrate and a negative electrode mixture layer, the negative electrode mixture layer being formed on the negative electrode substrate and containing a negative electrode active material; and a separator disposed between the positive electrode and the negative electrode. In the electric storage device, the separator yields a triple value of standard deviation of local air resistance, as measured within a 5-mm diameter circle, of at least 20 seconds/10 cc but not more than 350 seconds/10 cc.

Abstract translation: 提供一种蓄电装置，其具备：具有正极基板和正极合剂层的正极，正极合剂层形成在正极基板上，并含有正极活性物质; 包括负极基板和负极合剂层的负极，所述负极合剂层形成在所述负极基板上并含有负极活性物质; 以及设置在正极和负极之间的隔膜。 在蓄电装置中，分离器产生至少20秒/ 10cc但不超过350秒/ 10cc的在5mm直径圆内测量的局部空气阻力的标准偏差的三重值。