公开(公告)号：US20210399347A1

公开(公告)日：2021-12-23

申请号：US17279134

申请日：2019-09-26

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Kenta NAKAI ,  Jun OYAMA

IPC: H01M10/0587 ,  H01G11/58 ,  H01G11/22 ,  H01G11/52 ,  H01G11/84

Abstract: Provided is a method for manufacturing an energy storage device including an electrode that has an active material layer, an electrolyte solution, and a case. According to the present embodiment, the method including injecting an electrolyte solution in a predetermined amount into a case is characterized in that the predetermined amount is an amount such that, an alkali metal or an alkaline earth metal at least partially comes into contact with a free electrolyte solution that is the electrolyte solution excluding the electrolyte solution soaking into the electrode assembly in the case, with the case housing therein: the alkali metal or the alkaline earth metal of an ion supply member that has the alkali metal or the alkaline earth metal disposed on a conductive member other than the active material layer; and an electrode assembly including the stacked electrode that has electrical conduction to the conducive member of the ion supply member.

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：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.

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：US20150357624A1

公开(公告)日：2015-12-10

申请号：US14732692

申请日：2015-06-06

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Kazuki Kawaguchi ,  Masaki Masuda ,  Masashi Takano

IPC: H01M2/36 ,  H01M10/04

CPC classification number: H01M2/36 ,  H01G11/58 ,  H01G11/78 ,  H01G11/80 ,  H01G11/82 ,  H01M2/0217 ,  H01M2/364 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587

Abstract: An energy storage device includes: a first guide portion which is arranged in the inside of a case and allows an electrolyte solution to flow toward one end of an electrode assembly in a winding axis direction from an electrolyte solution pouring hole; and a second guide portion which is arranged in the inside of the case and allows a fluid to flow toward the electrolyte solution pouring hole from the inside of the case, and which prevents the electrolyte solution from flowing toward the other end of the electrode assembly in the winding axis direction from the electrolyte solution pouring hole or suppresses the electrolyte solution from flowing toward the other end of the electrode assembly in the winding axis direction from the electrolyte solution pouring hole.

Abstract translation: 一种能量存储装置，包括：第一引导部，其布置在壳体的内部，并且允许电解质溶液从电解质溶液注入孔沿着卷绕轴线方向流过电极组件的一端; 以及第二引导部，其布置在壳体的内部，并且允许流体从壳体的内部朝向电解质溶液注入孔流动，并且防止电解质溶液朝向电极组件的另一端流动 从电解液注入孔的卷绕轴方向，或者抑制电解质溶液从电解液注入孔向卷绕轴方向的电极组的另一端流动。

公开(公告)号：US20160172646A1

公开(公告)日：2016-06-16

申请号：US14954729

申请日：2015-11-30

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Takeshi SASAKI

IPC: H01M2/18 ,  H01M10/04

CPC classification number: H01M2/18 ,  H01M2/1077 ,  H01M10/0431

Abstract: An energy storage apparatus includes: an energy storage device including a flat electrode assembly in which electrodes are layered and a prismatic case in which the electrode assembly is housed; and a spacer arranged adjacently to the energy storage device in a first direction, wherein the spacer is formed such that a thickness size in the first direction of a center portion of the spacer in a second direction, which is a direction orthogonal to the first direction and is a direction parallel to a surface of the spacer that faces the energy storage device, is set larger than a thickness size in the first direction of other portions of the spacer arranged adjacently to the center portion of the spacer in the second direction, and a width of the center portion of the spacer in a third direction orthogonal to the first and second directions at a contact portion of the spacer with the energy storage device is set smaller than a width of the case in the third direction.

Abstract translation: 一种能量存储装置，包括：能量存储装置，其包括电极层叠的扁平电极组件和容纳所述电极组件的方形壳体; 以及间隔件，其在第一方向上与所述能量存储装置相邻配置，其中所述间隔件形成为使得所述间隔件的中心部分的第一方向上的厚度尺寸沿与第一方向正交的方向的第二方向 并且是平行于所述间隔件的面向所述能量存储装置的表面的方向，被设定为大于在所述间隔件的与所述间隔件的第二方向的中心部相邻配置的其他部分的第一方向上的厚度尺寸，以及 在间隔件与能量存储装置的接触部分处，在与第一和第二方向正交的第三方向上的间隔件的中心部分的宽度被设定为小于第三方向上的壳体的宽度。

公开(公告)号：US20150147624A1

公开(公告)日：2015-05-28

申请号：US14535147

申请日：2014-11-06

Applicant: GS Yuasa International Ltd.

Inventor： Taro YAMAFUKU ,  Kazuki KAWAGUCHI ,  Akihiko MIYAZAKI ,  Takeshi SASAKI

IPC: H01G11/26 ,  H01M4/587 ,  H01M2/20 ,  H01G11/38 ,  H01M4/133

CPC classification number: H01G11/26 ,  H01G11/38 ,  H01M2/204 ,  H01M2/206 ,  H01M4/13 ,  H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M4/667 ,  H01M10/0525 ,  H01M10/0585 ,  Y10T29/49115

Abstract: There is provided an energy storage device including an electrode assembly having a pair of electrodes overlapped with each other. At least one of the electrodes includes a current collecting substrate, an active material layer arranged on the current collecting substrate, an intermediate layer arranged between the current collecting substrate and the active material layer, and an insulating layer arranged on the current collecting substrate. The active material layer contains an active material and a first binder. The intermediate layer contains a carbonaceous material and a second binder. The insulating layer contains an insulating material and a third binder. The second binder is a nonaqueous binder. The third binder is an aqueous binder.

Abstract translation: 提供了一种能量存储装置，其包括具有彼此重叠的一对电极的电极组件。 电极中的至少一个包括集电衬底，布置在集电衬底上的活性材料层，布置在集电衬底和活性材料层之间的中间层以及布置在集电衬底上的绝缘层。 活性物质层含有活性物质和第一粘合剂。 中间层含有碳质材料和第二粘合剂。 绝缘层包含绝缘材料和第三粘合剂。 第二粘合剂是非水性粘合剂。 第三粘合剂是水性粘合剂。

公开(公告)号：US20140197796A1

公开(公告)日：2014-07-17

申请号：US14152948

申请日：2014-01-10

Applicant: GS Yuasa International Ltd.

Inventor： Takeshi SASAKI ,  Taro YAMAFUKU

IPC: H01M10/0587 ,  H01M10/04 ,  H02J7/00 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01M2/0217 ,  H01M2/263 ,  H01M2/30 ,  H01M10/0431 ,  H01M10/049 ,  H01M10/0525 ,  H02J7/0068 ,  Y10T29/49108

Abstract: An electric storage device includes: a rolled electrode assembly 10 formed by winding a positive electrode, a negative electrode, and a separator so as to have curved portions and linear portions; current collectors 7; and an electrolyte solution 3. A positive electrode substrate has at one end 10A an unformed portion 11E formed without a positive electrode mixture layer, and a negative electrode substrate has at the other end 10B an unformed portion 13E formed without a negative electrode mixture layer. The current collectors 7 are connected respectively to at least part of the linear portions in the unformed portion of the positive electrode at the one end 10A and that of the negative electrode at the other end 10B. The one end 10A in the positive electrode has a length greater than the winding length, and/or the other end 10B in the negative electrode has such a length.

Abstract translation: 蓄电装置包括：卷绕电极组件10，其通过卷绕正电极，负电极和隔膜以形成弯曲部分和直线部分; 集电器7; 和电解质溶液3.正极基板的一端10A具有未形成正极合剂层的未成形部11E，在另一端10B具有未形成负极混合层的未成形部13E。 集电器7分别连接到正极的未形成部分的至少一部分的一端10A处，另一端10B处的负极的直线部分的至少一部分连接。 正极中的一端10A具有大于卷绕长度的长度，和/或负极中的另一端10B具有这样的长度。