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    ELECTRODE, STORAGE BATTERY, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE
    1.
    发明申请
    ELECTRODE, STORAGE BATTERY, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20220302433A1

    公开(公告)日：2022-09-22

    申请号：US17569537

    申请日：2022-01-06

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Kiyofumi OGINO

    IPC分类号： H01M4/134 ,  H01M4/38 ,  H01M4/62 ,  H01G11/38 ,  H01G11/42 ,  H01G11/28 ,  H01G11/32

    摘要： A power storage device with high capacity is provided. A power storage device with high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode with high capacity is provided. An electrode with high energy density is provided. A highly reliable electrode is provided. Such a power storage device includes a first electrode and a second electrode. The first electrode includes a first current collector and a first active material layer. The first active material layer includes active material particles, spaces provided on the periphery of the active material particles, graphene, and a binder. The active material particles are silicon. The active material particles and the spaces are surrounded by the graphene and the binder.

    SECONDARY BATTERY
    4.
    发明申请
    SECONDARY BATTERY 审中-公开
    二次电池

    公开(公告)号：US20140004412A1

    公开(公告)日：2014-01-02

    申请号：US13905163

    申请日：2013-05-30

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Kiyofumi OGINO

    IPC分类号： H01M4/40

    CPC分类号： H01M4/405 ,  H01M4/131 ,  H01M4/134 ,  H01M4/136 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/466 ,  H01M4/485 ,  H01M4/58 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

    摘要： A secondary battery which can achieve battery performance satisfactorily in a low temperature environment in cold climates or the like is provided. Further, a secondary battery having high capacity even in a low temperature environment in cold climates or the like is provided. A secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution which contains a nonaqueous solvent and an electrolyte. The negative electrode includes a negative electrode active material layer. The negative electrode active material layer contains graphene, a binder, and a negative electrode active material containing a particulate alloy-based material. The nonaqueous solvent contains propylene carbonate and the electrolyte contains lithium perchlorate.

    摘要翻译： 提供了可以在寒冷气候等的低温环境中令人满意地实现电池性能的二次电池。 此外，提供即使在寒冷气候等的低温环境中也具有高容量的二次电池。 二次电池包括正极，负极和含有非水溶剂和电解质的电解液。 负极包括负极活性物质层。 负极活性物质层含有石墨烯，粘合剂和含有颗粒状合金基材料的负极活性物质。 非水溶剂含有碳酸亚丙酯，电解质含有高氯酸锂。

    METHOD FOR FORMING NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY
    8.
    发明申请
    METHOD FOR FORMING NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY 有权
    形成负极电极的方法和制造锂二次电池的方法

    公开(公告)号：US20130212879A1

    公开(公告)日：2013-08-22

    申请号：US13763861

    申请日：2013-02-11

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Kiyofumi OGINO

    IPC分类号： H01R43/16

    CPC分类号： H01R43/16 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M4/48 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M4/669 ,  Y02P70/54 ,  Y10T29/49224

    摘要： The number of steps is reduced in the formation process of an electrode. Deterioration of the electrode is suppressed. A highly reliable lithium secondary battery is provided by suppressing the deterioration of the electrode. A method for forming a negative electrode and a method for manufacturing a lithium secondary battery including the negative electrode are provided. In the method for forming the negative electrode, graphene oxide, a plurality of particulate negative electrode active materials, and a precursor of polyimide are mixed to form slurry; the slurry is applied over a negative electrode current collector; and the slurry applied over the negative electrode current collector is heated at a temperature higher than or equal to 200° C. and lower than or equal to 400° C. so that the precursor of the polyimide is imidized. The graphene oxide is reduced in heating the slurry to imidize the precursor of the polyimide.

    摘要翻译： 在电极的形成过程中，步骤数减少。 抑制电极的劣化。 通过抑制电极的劣化来提供高度可靠的锂二次电池。 提供一种形成负极的方法和包括该负极的锂二次电池的制造方法。 在形成负极的方法中，将石墨烯氧化物，多个粒状负极活性物质和聚酰亚胺的前体混合，形成浆料; 将浆料涂布在负极集电体上; 并且施加在负极集电器上的浆料在高于或等于200℃且低于或等于400℃的温度下加热，使得聚酰亚胺的前体被酰亚胺化。 氧化石墨烯在加热浆料时被还原，以酰亚胺化聚酰亚胺的前体。

    POWER STORAGE DEVICE
    9.
    发明申请
    POWER STORAGE DEVICE 审中-公开
    电源存储设备

    公开(公告)号：US20160268598A1

    公开(公告)日：2016-09-15

    申请号：US15165147

    申请日：2016-05-26

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Kazutake KURIKI ,  Nobuhiro INOUE ,  Kiyofumi OGINO

    IPC分类号： H01M4/36 ,  H01G11/68 ,  H01M10/0525 ,  H01G11/72 ,  H01M4/38 ,  H01M10/0562

    CPC分类号： H01M4/366 ,  H01G11/06 ,  H01G11/50 ,  H01G11/68 ,  H01G11/72 ,  H01M4/382 ,  H01M4/386 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/027 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7022

    摘要： A power storage device which has improved performance such as higher discharge capacity and in which deterioration due to peeling or the like of an active material layer is less likely to be caused is provided. In an electrode for the power storage device, phosphorus-doped amorphous silicon is used for the active material layer over a current collector as a material that can be alloyed with lithium, and niobium oxide is deposited over the active material layer as a layer containing niobium. Accordingly, the capacity of the power storage device can be increased and the cycle characteristics and the charge-discharge efficiency can be improved.

    摘要翻译： 提供了一种具有改善的性能的蓄电装置，例如较高的放电容量，并且由于活性材料层的剥离等而导致的劣化不大可能。 在蓄电装置的电极中，作为可与锂合金化的材料，在集电体上使用磷掺杂非晶硅作为活性物质层，在活性物质层上沉积氧化铌作为含有铌的层 。 因此，能够提高蓄电装置的容量，能够提高循环特性和充放电效率。

    NEGATIVE ELECTRODE ACTIVE MATERIAL AND POWER STORAGE DEVICE
    10.
    发明申请
    NEGATIVE ELECTRODE ACTIVE MATERIAL AND POWER STORAGE DEVICE 有权
    负极电极活性材料和蓄电装置

    公开(公告)号：US20150340691A1

    公开(公告)日：2015-11-26

    申请号：US14714479

    申请日：2015-05-18

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Nobuhiro INOUE ,  Kiyofumi OGINO

    IPC分类号： H01M4/38 ,  H01M10/0525 ,  H01M4/48

    CPC分类号： H01M4/386 ,  H01G11/06 ,  H01G11/24 ,  H01G11/50 ,  H01M4/13 ,  H01M4/134 ,  H01M4/366 ,  H01M4/38 ,  H01M4/48 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/13

    摘要： A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.

    摘要翻译： 提供高容量的蓄电装置。 或者，提供具有优异的循环特性的蓄电装置。 或者，提供具有高充放电效率的蓄电装置。 或者，提供寿命长的蓄电装置。 负极活性物质包括第一区域和第二区域。 第一区域包括选自Si，Mg，Ca，Ga，Al，Ge，Sn，Pb，Sb，Bi，Ag，Zn，Cd，As，Hg和In中的至少一种元素。 第二区域包括氧并且与包括在第一区域中的元件相同的元件。 包含在第一区域中的元素的微晶尺寸大于或等于1nm且小于或等于10nm。