公开(公告)号：US20160093859A1

公开(公告)日：2016-03-31

申请号：US14863956

申请日：2015-09-24

Applicant: GS Yuasa International Ltd.

Inventor： Kazuki KAWAGUCHI ,  Masashi TAKANO ,  Taro YAMAFUKU ,  Masaki MASUDA

IPC: H01M2/16

CPC classification number: H01M2/1673

Abstract: An energy storage device includes: an electrode having a composite layer formed by applying a composite directly or indirectly onto a substrate and a non-applied portion, onto which the composite is not applied; and a separator layered on the electrode to face the composite layer. Here, a drawn area is formed in at least. a part of the non-applied portion, and an intermediate layer is interposed at least between the drawn area and the composite layer.

Abstract translation: 能量存储装置包括：电极，其具有通过将复合材料直接或间接施加到基底上的复合层和未施加复合材料的未施加部分; 以及在电极上层叠以面对复合层的隔板。 这里，至少形成了绘制区域。 至少在所述拉伸区域和所述复合层之间插入中间层。

公开(公告)号：US20160285074A1

公开(公告)日：2016-09-29

申请号：US15078472

申请日：2016-03-23

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Masaki MASUDA ,  Kazuki KAWAGUCHI ,  Takeshi SASAKI

IPC: H01M4/131 ,  H01M10/0525 ,  H01G11/32 ,  H01G11/60 ,  H01G11/30 ,  H01G11/46

CPC classification number: H01M4/131 ,  H01G11/30 ,  H01G11/32 ,  H01G11/46 ,  H01G11/60 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M4/625 ,  H01M4/667 ,  H01M4/668 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: An energy storage device includes an electrode having an electrode substrate; an active material layer which is disposed to cover a surface of the electrode substrate and which contains active material particles; and an intermediate layer which is disposed between the electrode substrate and the active material layer and which contains a binder, wherein the active material particles of the active material layer enter the intermediate layer, and are in contact with the electrode substrate and the intermediate layer.

Abstract translation: 能量存储装置包括具有电极基板的电极; 活性物质层，其设置成覆盖电极基板的表面并且含有活性物质颗粒; 以及中间层，其设置在所述电极基板和所述活性物质层之间并且包含粘合剂，其中所述活性物质层的活性物质粒子进入所述中间层，并且与所述电极基板和所述中间层接触。

公开(公告)号：US20210257618A1

公开(公告)日：2021-08-19

申请号：US17274668

申请日：2019-09-10

Applicant: GS Yuasa International Ltd.

Inventor： Kenta OGI ,  Fumiya NAKANO ,  Ryosuke SHIMOKAWA ,  Shota ITO ,  Masaki MASUDA ,  Taro YAMAFUKU ,  Kei KUMABAYASHI ,  Akihiko MIYAZAKI

IPC: H01M4/587 ,  H01M50/578 ,  H01M4/133 ,  H01M4/1393 ,  H01G11/32 ,  H01G11/86 ,  H01G11/78

Abstract: An aspect of the present invention is an energy storage device including an electrode assembly that has a negative electrode and a positive electrode, where the negative electrode contains a negative electrode substrate and a negative active material, and has a negative active material layer disposed in an unpressed shape along at least one surface of the negative electrode substrate, the negative active material includes solid graphite particles as a main component, and the solid graphite particles have an aspect ratio of 1 or more and 5 or less.

公开(公告)号：US20160049685A1

公开(公告)日：2016-02-18

申请号：US14824369

申请日：2015-08-12

Applicant: GS Yuasa International Ltd.

Inventor： Takeshi SASAKI ,  Taro YAMAFUKU ,  Masaki MASUDA

IPC: H01M10/04 ,  H01M10/0525 ,  H01M4/583

CPC classification number: H01M10/0431 ,  H01M4/583 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525

Abstract: An energy storage device includes: a flattened electrode assembly formed by winding electrodes such that a hollow portion is formed, the electrode assembly including a pair of curved portions opposed manner in a major axis direction and a pair of flat portions opposed in a minor axis direction; and a case storing the electrode assembly therein, wherein assuming a thickness of the flat portion in the minor axis direction as A, a thickness of the curved portion in a radial direction as B, and a thickness of the hollow portion in the minor axis direction as W, the electrode assembly satisfies A+(W/2)≦B in a state where the electrode assembly is discharged.

Abstract translation: 能量储存装置包括：扁平电极组件，其通过缠绕电极形成，使得形成中空部分，所述电极组件包括在长轴方向上相对的一对弯曲部分和在短轴方向上相对的一对平坦部分 ; 以及将电极组件保存在其中的壳体，其中假设短轴方向上的平坦部分的厚度为A，弯曲部分的径向厚度为B，中空部分在短轴方向上的厚度 作为W，在电极组件排出的状态下，电极组件满足A +（W / 2）＆lt; 1E; B。

公开(公告)号：US20180080996A1

公开(公告)日：2018-03-22

申请号：US15554694

申请日：2016-03-14

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Masaki MASUDA ,  Kazuki KAWAGUCHI ,  Masashi TAKANO

IPC: G01R31/36

CPC classification number: G01R31/392 ,  G01R31/389 ,  H01M10/425 ,  H01M10/48 ,  H02J7/0073 ,  H02J7/0077

Abstract: According to an embodiment of the present invention, deterioration of a non-aqueous electrolyte power storage element is detected based on a first increase rate and a second increase rate, the first increase rate being an increase rate of a direct current resistance value obtained by measuring the non-aqueous electrolyte power storage element over a first time period, the second increase rate being an increase rate of a direct current resistance value obtained by measuring the non-aqueous electrolyte power storage element over a second time period that is longer than the first time period.

公开(公告)号：US20170092901A1

公开(公告)日：2017-03-30

申请号：US15272267

申请日：2016-09-21

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Masaki MASUDA

IPC: H01M2/02 ,  H01M2/20 ,  H01G11/78 ,  H01M10/0525

CPC classification number: H01M2/0277 ,  H01G9/08 ,  H01G11/78 ,  H01G11/82 ,  H01M2/0217 ,  H01M2/022 ,  H01M2/0267 ,  H01M2/0404 ,  H01M2/202 ,  H01M10/0525 ,  Y02E60/13

Abstract: An energy storage device includes a metal case which houses an electrode assembly therein, and an insulation sheet mounted on a portion of an outer surface of the case. The case includes a projecting portion which extends in a thickness direction of the insulation sheet along an edge surface of at least a portion of the insulation sheet, and a distal end of the projecting portion projects from the insulation sheet.