公开(公告)号：US20160351967A1

公开(公告)日：2016-12-01

申请号：US15165565

申请日：2016-05-26

Applicant: GS Yuasa International Ltd.

Inventor： Tomonori KAKO ,  Taro YAMAFUKU ,  Akihiko MIYAZAKI

IPC: H01M10/0587 ,  H01M4/62 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/133

CPC classification number: H01M10/0587 ,  H01G11/24 ,  H01G11/32 ,  H01G11/38 ,  H01M4/133 ,  H01M4/364 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/647 ,  H01M2004/027 ,  Y02E60/13

Abstract: An energy storage device includes a positive electrode and a negative electrode. The negative electrode includes graphite and non-graphitizable carbon, and a D50 particle size of the graphite at which a cumulative volume in a particle size distribution of a particle size reaches 50% is 2 μm or more. A ratio of a mass of the non-graphitizable carbon to a total amount of a mass of the graphite and a mass of the non-graphitizable carbon is 5% by mass or more and 45% by mass or less and a ratio of the D50 particle size of the graphite to a D50 particle size of the non-graphitizable carbon is 1.02 or less.

Abstract translation: 能量存储装置包括正极和负极。 负极包括石墨和不可石墨化的碳，并且粒径达到50％的粒度分布的累积体积的石墨的D50粒径为2μm以上。 不石墨化碳的质量与石墨质量的总量与不石墨化碳的质量之比为5质量％以上且45质量％以下，D50的比例 不可石墨化碳的石墨尺寸与D50的粒径为1.02以下。

公开(公告)号：US20160276667A1

公开(公告)日：2016-09-22

申请号：US15072506

申请日：2016-03-17

Applicant: GS Yuasa International Ltd.

Inventor： Kenta NAKAI ,  Akihiko MIYAZAKI ,  Tomonori KAKO ,  Sumio MORI

IPC: H01M4/587 ,  H01G11/58 ,  H01G11/52 ,  H01M10/0525 ,  H01G11/24

CPC classification number: H01M4/587 ,  H01G11/24 ,  H01G11/52 ,  H01G11/58 ,  H01M4/131 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20 ,  Y02T10/7011

Abstract: An energy storage device includes a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The negative electrode includes an active material layer, and the active material layer has pores having a pore size of 0.1 μm or more and 1.0 μm or less, and a total volume of the pores is 0.26 cm3/g or more and 0.46 cm3/g or less.

Abstract translation: 储能装置包括正极，负极和非水电解质溶液。 负极包括活性物质层，活性物质层的孔径为0.1μm以上且1.0μm以下，孔的总体积为0.26cm 3 / g以上且0.46cm 3 / g以下 或更少。

公开(公告)号：US20140377629A1

公开(公告)日：2014-12-25

申请号：US14306068

申请日：2014-06-16

Applicant: GS Yuasa International Ltd.

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

IPC: H01M2/02 ,  H01M2/16

CPC classification number: H01M2/1686 ,  H01M2/1646 ,  H01M2/1673 ,  H01M4/66 ,  H01M10/4235 ,  H01M2004/021

Abstract: In the state where a positive electrode and a separator are held in a case, the value of the ratio of the tensile elongation in a first direction of the separator to the tensile elongation in the first direction of a positive electrode substrate is from 4 to 68. In the same state, the value of the ratio of the tensile elongation in a second direction of the separator to the tensile elongation in the second direction of the positive electrode substrate is from 4 to 68. The value of the ratio of the thickness of a heat-resistant layer to the thickness of the positive electrode substrate is from 0.25 to 0.70. The proportion by mass of heat-resistant particles contained in the heat-resistant layer is from 30 to 99% by mass of the heat-resistant layer.

Abstract translation: 在将正极和隔板保持在壳体中的状态下，隔板的第一方向的拉伸伸长率与正极基板的第一方向的拉伸伸长率之比为4〜68 在相同的状态下，隔板的第二方向的拉伸伸长率与正极基板的第二方向的拉伸伸长率的比值为4〜68。 对于正极基板的厚度的耐热层为0.25〜0.70。 耐热层中所含的耐热粒子的质量比例为耐热层的30〜99质量％。

公开(公告)号：US20230022950A1

公开(公告)日：2023-01-26

申请号：US17787448

申请日：2020-12-22

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Kenta OGI ,  Kei KUMABAYASHI ,  Akihiko MIYAZAKI

IPC: H01M4/133 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M4/131 ,  H01M4/62 ,  H01M50/491 ,  H01M10/0587 ,  H01G11/32 ,  H01G11/46

Abstract: An energy storage device according to one aspect of the present invention includes: a negative electrode including a negative electrode substrate and a negative active material layer layered directly or indirectly on a surface of the negative electrode substrate; and a positive electrode. The negative active material layer contains a negative active material. The negative active material contains non-graphitizable carbon. In one direction of the negative electrode substrate, at least one end edge side of the negative active material layer is thicker than a central portion present between the one end edge side and the other end edge side facing the one end edge side. When a true density of the non-graphitizable carbon is A [g/cm3], an amount of charge B [mAh/g] of the negative electrode in a fully charged state satisfies the following formula 1. −
173
XA+1588
≤
B
≤
-830A+1800

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：US20130280568A1

公开(公告)日：2013-10-24

申请号：US13864133

申请日：2013-04-16

Applicant: GS YUASA INTERNATIONAL, LTD.

Inventor： Akihiko MIYAZAKI ,  Sumio MORI ,  Tomonori KAKO

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/1686 ,  H01M10/0468 ,  H01M10/0587 ,  Y10T29/49114 ,  Y10T29/53135

Abstract: Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof.

Abstract translation: 提供一种能量储存装置，其使用具有耐热性能差的层的隔膜，例如耐热涂层，并且能够抑制性能的降低。 能量存储装置包括：卷绕体，其包括正极，负极和层叠并卷绕的隔板，所述隔板插入在正极和负极之间并具有第一表面和第二表面，第一 具有优于第二表面的热粘合性能的热粘合性能的表面; 以及缠绕在所述卷绕体的最外层的绝缘片。 至少一个分离器经由其第一表面结合到绝缘片。

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：US20190237764A1

公开(公告)日：2019-08-01

申请号：US16328184

申请日：2017-08-28

Applicant: GS Yuasa International Ltd.

Inventor： Masashi TAKANO ,  Akihiko MIYAZAKI

IPC: H01M4/587 ,  H01G11/32 ,  H01G11/26 ,  H01G11/86 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/587 ,  C01P2002/02 ,  C01P2006/14 ,  C01P2006/17 ,  C01P2006/40 ,  H01G11/24 ,  H01G11/26 ,  H01G11/32 ,  H01G11/38 ,  H01G11/86 ,  H01M4/0404 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: There is provided is an energy storage device having improved power performance at a relatively large current. In the present embodiment, an energy storage device is provided, which has a negative active material layer containing particulate amorphous carbon, wherein a distribution curve of differential pore volume in the negative active material layer has a peak appearing within the range from 0.1 μm to 2 μm inclusive and the differential pore volume at the peak is 0.9 cm3/g or more.

公开(公告)号：US20160064775A1

公开(公告)日：2016-03-03

申请号：US14833558

申请日：2015-08-24

Applicant: GS Yuasa International Ltd.

Inventor： Tomonori KAKO ,  Sumio MORI ,  Akihiko MIYAZAKI ,  Kenta NAKAI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/587 ,  H01M4/525

CPC classification number: H01M10/0567 ,  C01P2004/60 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2300/004

Abstract: Provided is an energy storage device including an electrolyte solution including a compound represented by the general formula (1), a compound represented by the general formula (2), and a compound represented by the general formula (3):

Abstract translation: 本发明提供一种储能装置，其特征在于，具备包含通式（1）表示的化合物，通式（2）表示的化合物和通式（3）表示的化合物的电解质溶液：

公开(公告)号：US20150349326A1

公开(公告)日：2015-12-03

申请号：US14722659

申请日：2015-05-27

Applicant: GS Yuasa International Ltd.

Inventor： Akihiko MIYAZAKI ,  Sumio MORI ,  Tomonori KAKO ,  Kenta NAKAI

IPC: H01M4/131 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M2/1653 ,  H01M2/166 ,  H01M2/1686 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

Abstract: An energy storage device comprising: a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte, and an insulating layer disposed between the positive electrode and the separator, wherein the positive electrode contains a compound represented by LiaNibCocMdWxNbyZrzO2 (provided that a, b, c, d, x, y and z satisfy the equations of 0≦a≦1.2, 0≦b≦1, 0.1≦c≦0.4, 0≦d≦0.5, 0≦x≦0.1, 0≦y≦0.1, 0≦z≦0.1 and b+c+d=1, and M denotes at least one kind of element selected from the group consisting of Mn, Ti, Cr, Fe, Co, Cu, Zn, Al, Ge, Sn and Mg) as a positive active material and the negative electrode contains hardly graphitizable carbon with a D50 particle diameter greater than or equal to 1.0 μm and less than or equal to 6.0 μm as a negative active material.

Abstract translation: 1.一种储能装置，其特征在于，具备：正极，负极，设置在所述正极和负极之间的隔膜，非水电解质和设置在所述正极和所述隔板之间的绝缘层，其中所述正极含有化合物 表示为LiaNibCocMdWxNbyZrzO2（条件是a，b，c，d，x，y和z满足0＆nlE; a＆nlE; 1.2,0＆nlE; b＆nlE; 1,0.1＆nlE; c＆nlE; 0.4,0和nlE; d＆nlE; 0.5,0＆ x和nlE; 0.1,0＆nlE; y＆nlE; 0.1,0＆amp; nlE; z＆nlE; 0.1和b + c + d = 1，M表示选自Mn，Ti，Cr，Fe，Co，Cu中的至少一种元素 ，Zn，Al，Ge，Sn和Mg）作为正极活性物质，负极含有D50粒径大于或等于1.0μm且小于等于6.0μm的难成石墨化碳作为负极活性物质。