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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
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。
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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
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。
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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).
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4.发明授权公开(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.
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公开(公告)号：US11515537B2
公开(公告)日：2022-11-29
申请号：US16763173
申请日：2018-11-21
Applicant: GS Yuasa International Ltd.
Inventor： Tomonori Kako , Akihiko Miyazaki , Masashi Takano , Kenta Nakai , Ukyo Harinaga
Abstract: An energy storage device includes a negative electrode having a negative active material layer containing amorphous carbon as an active material, a curve attained by determining a rate of change (dQ/dV) in a potential (V) of the amorphous carbon in a discharge capacity (Q) of the amorphous carbon per unit quantity based on a result attained by measuring the potential (V) with respect to the discharge capacity (Q) and representing the rate of change (dQ/dV) with respect to the potential (V) has one or more peaks in a range in which the potential of the amorphous carbon is 0.8 V or more and 1.5 V or less, and a potential of the negative electrode at time of full charge is 0.25 V or more with respect to a lithium potential.
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Patent Agency Ranking
公开(公告)号：US09806376B2
公开(公告)日：2017-10-31
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 , H01M4/587 , H01M4/525 , H01M4/505 , H01M10/0525 , H01M10/0568
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):
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公开(公告)号：US09653714B2
公开(公告)日：2017-05-16
申请号：US14227394
申请日：2014-03-27
Applicant: GS Yuasa International Ltd.
Inventor： Sumio Mori , Tomonori Kako , Akihiko Miyazaki , Kenta Nakai
IPC: H01M2/12 , H01M2/02 , H01M2/04 , H01M2/10 , H01M2/26 , H01M2/30 , H01G9/12 , H01G11/18 , H01M10/625 , H01M10/647 , H01M10/6557 , H01M10/613
CPC classification number: H01M2/12 , H01G9/12 , H01G11/18 , H01M2/024 , H01M2/0478 , H01M2/1077 , H01M2/263 , H01M2/305 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6557 , Y02E60/13
Abstract: An electric storage device is provided with an electrode assembly including a positive electrode plate and a negative electrode plate; a case for housing the electrode assembly; a positive-electrode external terminal arranged on an outer surface of the case and electrically connected to the positive electrode plate; a negative-electrode external terminal arranged on an outer surface of the case and electrically connected to the negative electrode plate; and a gas exhaust valve formed in a region of the case on the opposite side of a region where the positive-electrode external terminal and the negative-electrode external terminal are arranged.
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公开(公告)号：US09350049B2
公开(公告)日：2016-05-24
申请号：US14555946
申请日：2014-11-28
Applicant: GS Yuasa International Ltd
Inventor： Kenta Nakai , Takeshi Sasaki
IPC: H01M10/0567 , H01M10/052 , H01M2/20 , H01M10/0525 , H01M10/42
CPC classification number: H01M10/0567 , H01M2/204 , H01M2/206 , H01M10/052 , H01M10/0525 , H01M10/4235 , H01M2300/0025
Abstract: The electric storage device includes: an electrode assembly; and an electrolytic solution at least part of which is impregnated into the electrode assembly, wherein the electrode assembly includes, as electrode assembly forming members, at least a positive electrode and a negative electrode that face each other, and contains lithium carbonate, the electrolytic solution contains at least lithium hexafluorophosphate, at least one of the positive electrode and the negative electrode includes an active material layer containing a metal compound, the active material layer includes a peripheral area and an inner area inside the peripheral area, the electrode assembly includes a high-content part the ratio of lithium carbonate content of which is higher than that of the inner area.
Abstract translation: 蓄电装置包括：电极组件; 以及至少一部分被浸渍到所述电极组件中的电解液，其中，所述电极组件包括作为电极组件形成构件的至少相对的正极和负极，并且包含碳酸锂，所述电解液 至少包含六氟磷酸锂，所述正极和负极中的至少一个包括含有金属化合物的活性物质层，所述活性物质层包括周边区域和所述周边区域内部的内部区域，所述电极组件包括高 - 含量比碳酸锂含量高于内部区域的比例。
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公开(公告)号：US20140370393A1
公开(公告)日：2014-12-18
申请号：US14306048
申请日：2014-06-16
Applicant: GS Yuasa International Ltd.
Inventor： Kenta Nakai , Akihiko MIYAZAKI , Tomonori KAKO , Sumio MORI
CPC classification number: H01G11/26 , H01G11/06 , H01G11/32 , H01M4/13 , H01M4/133 , H01M4/587 , H01M4/64 , H01M4/70 , H01M10/052 , H01M10/0525 , H01M10/425 , H01M2004/021 , H01M2220/20 , Y02E60/122
Abstract: Provided is an energy storage device provided with a negative electrode including a negative substrate having a surface, and a negative composite layer formed on the surface of the negative substrate and including a negative active material; a positive electrode including a positive substrate, and a positive composite layer formed on the positive substrate and including a positive active material; and a separator placed between the positive electrode and the negative electrode. 10% cumulative diameter D10 in the particle size distribution of the negative active material on a volume basis is 1.3 μm or more, and 90% cumulative diameter D90 in the particle size distribution of the negative active material on a volume basis is 8.9 μm or less. The surface of the negative substrate has a center line roughness Ra of 0.205 μm or more and 0.781 μm or less, and has a center line roughness Ra to a ten-point mean height Rz of 0.072 or more and 0.100 or less.
Abstract translation: 本发明提供一种能量存储装置，其具备包括具有表面的负极基板的负极和在负极基板的表面上形成有负极活性物质的负极复合层， 包括正极基板的正极和在正极基板上形成并包含正极活性材料的正极复合层; 以及设置在正极和负极之间的隔膜。 负极活性物质的体积基准粒径分布中的10％累积粒径D10为1.3μm以上，负极活性物质的体积基准粒径分布的90％累积粒径D90为8.9μm以下 。 负极基板的表面的中心线粗糙度Ra为0.205μm以上且0.781μm以下，中心线粗糙度Ra为十点平均高度Rz为0.072以上且0.100以下。
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公开(公告)号：US09905822B2
公开(公告)日：2018-02-27
申请号：US14094202
申请日：2013-12-02
Applicant: GS Yuasa International Ltd.
Inventor： Sumio Mori , Tomonori Kako , Akihiko Miyazaki , Kenta Nakai
CPC classification number: H01M2/1077 , H01M2/1094 , H01M2/206 , H01M2/305 , H01M2220/20
Abstract: An energy storage unit having plural energy storage devices, each of which includes a container housing an electrode assembly and positive and negative electrode terminals electrically connected to the electrode assembly and extending from the container in the same direction, includes: a bus bar electrically connecting a first terminal, which is one of the positive electrode terminal and the negative electrode terminal of a first energy storage device included in the plural energy storage devices, and a second terminal, which is one of the positive electrode terminal and the negative electrode terminal of a second energy storage device included in the plural energy storage devices and opposite in polarity to the first terminal; a packing member interposed between the first terminal and the container of the first energy storage device; and an insulating member interposed between the bus bar and the container of the first energy storage device.
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