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11.发明申请ENERGY STORAGE DEVICE, ENERGY STORAGE APPARATUS, VEHICLE, AND METHOD FOR USING ENERGY STORAGE DEVICE 有权能源储存装置，能源储存装置，车辆及使用能源储存装置的方法公开(公告)号：US20150340677A1
公开(公告)日：2015-11-26
申请号：US14719886
申请日：2015-05-22
Applicant: GS Yuasa International Ltd.
Inventor： Akihiko MIYAZAKI , Sumio MORI , Tomonori KAKO , Kenta NAKAI
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.
Abstract translation: 能量存储装置包括正极，负极，配置在正极和负极之间的隔膜和非水电解质。 负极具有负的基板层，负极复合层配置在负极基板的表面上。 分离器具有隔板基底层。 负极复合层含有粒径D50为2.0μm以上6.0μm以下的不可石墨化碳。 定义为通过将隔离层基板层的厚度除以通过将负极复合层的密度乘以负极复合层的厚度获得的值而得到的值的校正负极密度为1.2（g / cm3）以上且5.1（g / cm3）以下。
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公开(公告)号：US20200295364A1
公开(公告)日：2020-09-17
申请号：US16765203
申请日：2018-11-21
Applicant: GS Yuasa International Ltd.
Inventor： Sumio MORI , Tomonori KAKO , Akihiko MIYAZAKI , Masashi TAKANO , Ukyo HARINAGA
IPC: H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525
Abstract: The present embodiment provides a lithium ion secondary battery including a positive electrode containing LiaNixCoyMzO2 (0.9≤a≤1.2, 0.3≤x≤0.8, 0.2≤y+z≤0.7, where M is a metal element other than Li, Ni, and Co) as a positive active material, and a negative electrode containing non-graphitic carbon as a negative active material. In this lithium ion secondary battery, at a portion where the positive electrode and the negative electrode face each other, a basis weight (P) of the positive active material and a basis weight (N) of the negative active material satisfy a relational expression of 0.65≤P/N≤1.05.
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公开(公告)号：US20160248065A1
公开(公告)日：2016-08-25
申请号：US15052330
申请日：2016-02-24
Applicant: GS Yuasa International Ltd.
Inventor： Akihiko MIYAZAKI , Kenta NAKAI , Tomonori KAKO , Sumio MORI
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).
Abstract translation: 能量存储装置包括正电极，负电极和布置在这些电极之间的绝缘层，以使这些电极电绝缘。 负极包括含有活性物质粒子的复合层。 负极的复合层和正极配置成在绝缘层上彼此面对。 绝缘层包含电绝缘的颗粒，并且由这些颗粒之间的间隙制成多孔的。 通过活性物质粒子之间的间隙使负极的复合层多孔化，并且满足“-0.8≤LogB-LogA≤1.0”，其中在复合层的孔分布中，孔峰直径为 由A（μm）表示，并且在绝缘层的孔分布中，峰值直径由B（μm）表示。
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14.发明申请公开(公告)号：US20150340737A1
公开(公告)日：2015-11-26
申请号：US14716119
申请日：2015-05-19
Applicant: GS Yuasa International Ltd.
Inventor： Tomonori KAKO , Sumio MORI , Akihiko MIYAZAKI , Kenta NAKAI
IPC: H01M10/0567 , H01M4/58 , H01M10/04 , H01M10/0525
CPC classification number: H01M10/0567 , H01M4/366 , H01M4/5825 , H01M4/625 , H01M10/049 , H01M10/052 , H01M10/0525 , H01M2004/028 , Y10T29/49112
Abstract: A method including: a placing step of placing an electrode assembly including a positive electrode that contains a positive active material and a negative electrode that contains a negative active material, and an electrolyte solution containing an additive in a container; a charging step of charging the electrode assembly placed in the container; and a hermetically sealing step of hermetically sealing the container after the charging step. When starting charging in the charging step, the electrolyte solution contains 1.0 mass % or less of lithium difluoro bis(oxalate)phosphate as the additive. The charge voltage in the charging step is 4.0 V or more.
Abstract translation: 一种方法，包括：放置步骤，将包括正极活性物质的正极和含有负极活性物质的负极的电极组合物和含有添加剂的电解液放置在容器中; 对放置在容器中的电极组件充电的充电步骤; 以及在充电步骤之后气密地密封容器的气密密封步骤。 当在充电步骤中开始充电时，电解质溶液含有1.0质量％以下的作为添加剂的二氟化二（双（草酸）磷酸锂。 充电步骤中的充电电压为4.0V以上。
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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
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。
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Patent Agency Ranking
公开(公告)号：US20150093647A1
公开(公告)日：2015-04-02
申请号：US14497823
申请日：2014-09-26
Applicant: GS Yuasa International Ltd.
Inventor： Tomonori KAKO , Sumio MORI , Akihiko MIYAZAKI , Kenta NAKAI
IPC: H01M4/583 , H01M4/525 , H01M10/052 , H01M4/505
CPC classification number: H01M4/583 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2220/20 , Y02T10/7011
Abstract: A battery includes a positive electrode, a negative electrode including a negative active material layer containing hardly-graphitizable carbon as a negative active material and an aqueous binder, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative active material layer has a density of not less than 0.81 g/cc and not more than 1.01 g/cc. The negative active material has a particle size D90 of not less than 1.9 μm and not more than 11.5 μm, the particle size D90 being a particle size at which the cumulative volume is 90% in the particle size distribution.
Abstract translation: 电池包括正电极，负极包括含有难以石墨化的碳作为负极活性物质的负极活性物质层和水性粘合剂，设置在正极和负极之间的隔板和非水电解质。 负极活性物质层的密度不小于0.81g / cc且不大于1.01g / cc。 负极活性物质的粒径D90为1.9μm以上11.5μm以下，粒径D90为粒径分布中累积体积为90％的粒径。
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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：US20150092320A1
公开(公告)日：2015-04-02
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：US20220271287A1
公开(公告)日：2022-08-25
申请号：US17597560
申请日：2020-07-21
Applicant: GS Yuasa International Ltd.
Inventor： Kenta OGI , Kei KUMABAYASHI , Akihiko MIYAZAKI
IPC: H01M4/587
Abstract: One aspect of the present invention is an energy storage device including a negative electrode including a negative electrode substrate and a negative active material layer stacked directly or indirectly on at least one surface of the negative electrode substrate, the negative active material layer containing a negative active material, the negative active material containing hollow graphite particles having a median diameter D1 and solid graphite particles having a median diameter D2 smaller than the median diameter of the hollow graphite particles.
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公开(公告)号：US20190131080A1
公开(公告)日：2019-05-02
申请号：US16095613
申请日：2017-04-25
Applicant: GS Yuasa International Ltd.
Inventor： Kazuki KAWAGUCHI , Akihiko MIYAZAKI , Sumio MORI
CPC classification number: H01G11/24 , H01G11/28 , H01G11/70 , H01G11/86 , H01M4/13 , H01M4/139 , H01M4/66 , H01M4/661
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.
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