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    SECONDARY BATTERY AND A METHOD FOR FABRICATING THE SAME
    53.
    发明申请
    SECONDARY BATTERY AND A METHOD FOR FABRICATING THE SAME 有权

    公开(公告)号：US20210265653A1

    公开(公告)日：2021-08-26

    申请号：US17315766

    申请日：2021-05-10

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Shunpei YAMAZAKI ,  Minoru TAKAHASHI

    IPC: H01M10/0525 ,  H01M4/62 ,  H01M4/04 ,  H01M4/139 ,  H01M4/13 ,  H01M4/36

    Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.

    FABRICATING METHOD AND FABRICATING APPARATUS FOR SECONDARY BATTERY
    56.
    发明申请
    FABRICATING METHOD AND FABRICATING APPARATUS FOR SECONDARY BATTERY 审中-公开
    二次电池的制作方法和制作装置

    公开(公告)号：US20160006017A1

    公开(公告)日：2016-01-07

    申请号：US14789174

    申请日：2015-07-01

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yohei MOMMA ,  Junpei MOMO ,  Minoru TAKAHASHI ,  Takahiro KAWAKAMI

    IPC: H01M4/04 ,  C25D17/02

    Abstract: To provide a fabricating method and a fabricating apparatus for a lithium-ion secondary battery having stable charge characteristics and lifetime characteristics. A positive electrode is subjected to an electrochemical reaction in a large amount of electrolytic solution in advance before a secondary battery is completed. In this manner, the positive electrode can have stability. The use of the positive electrode enables fabrication of a highly reliable secondary battery. Similarly, a negative electrode is subjected to an electrochemical reaction in a large amount of electrolytic solution in advance. The use of the negative electrode enables fabrication of a highly reliable secondary battery.

    Abstract translation: 提供具有稳定的电荷特性和寿命特性的锂离子二次电池的制造方法和制造装置。 在二次电池完成之前，正电极预先在大量的电解液中进行电化学反应。 以这种方式，正极可以具有稳定性。 使用正极能够制造高度可靠的二次电池。 类似地，负极预先在大量的电解液中进行电化学反应。 使用负极能够制造高度可靠的二次电池。

    ELECTRONIC DEVICE INCLUDING SECONDARY BATTERY
    57.
    发明申请
    ELECTRONIC DEVICE INCLUDING SECONDARY BATTERY 审中-公开
    包括二次电池的电子设备

    公开(公告)号：US20150340664A1

    公开(公告)日：2015-11-26

    申请号：US14717615

    申请日：2015-05-20

    Applicant: Semiconductor Energy Laboratory Co., LTD.

    Inventor： Minoru TAKAHASHI ,  Yuugo GOTO ,  Yumiko YONEDA ,  Takuya MIWA ,  Ryota TAJIMA

    IPC: H01M2/02

    CPC classification number: H01M2/0275 ,  H01M2/021 ,  H01M2/0287 ,  H01M2/30 ,  H01M10/0436 ,  H01M2220/30

    Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery which is resistant to external force is obtained. An opening is provided in a central portion of the secondary battery, and a terminal is formed in the opening. An outer edge of the secondary battery is fixed by thermocompression bonding. In addition, the central portion of the secondary battery is fixed by thermocompression bonding, so that the amount of bending is limited even when the outer edge portion of the secondary battery is bent.

    Abstract translation: 在将具有比金属罐低的强度的膜用作二次电池的外部主体的情况下，设置在由外部主体包围的区域中的集电体，设置在外部主体的表面上的活性物质层 集电器等可能会在外部施加到二次电池上时损坏。 获得耐外力的二次电池。 在二次电池的中央部设置有开口，在开口部形成有端子。 通过热压接固定二次电池的外边缘。 此外，通过热压接固定二次电池的中心部分，使得即使当二次电池的外边缘部分弯曲时，弯曲量也受到限制。

    POWER STORAGE UNIT AND ELECTRONIC DEVICE
    58.
    发明申请
    POWER STORAGE UNIT AND ELECTRONIC DEVICE 审中-公开
    电力存储单元和电子设备

    公开(公告)号：US20150155528A1

    公开(公告)日：2015-06-04

    申请号：US14558795

    申请日：2014-12-03

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Minoru TAKAHASHI ,  Ryota TAJIMA

    IPC: H01M2/02 ,  H01G11/06 ,  H01G11/78

    CPC classification number: H01M2/0202 ,  H01G11/06 ,  H01G11/78 ,  H01M2/024 ,  H01M2/0275 ,  H01M2/0287 ,  H01M10/052 ,  H01M2002/0205 ,  Y02E60/13 ,  Y02T10/7022

    Abstract: A power storage unit or the like which has flexibility is achieved. An exterior body has projections and depressions. For example, part of the exterior body has projections and depressions in a wave cross-sectional shape. The shape of the projections and depressions is not limited to a shape with a curve and may be a shape with a straight line, such as a rectangle wave shape or a triangle wave shape. The projections and depressions allows the exterior body to be easily shrunk on the inner side of a bend portion and easily stretched on the outer side of the bend portion.

    Abstract translation: 实现了具有灵活性的蓄电单元等。 外部的身体有凹凸。 例如，外部主体的一部分具有波形截面形状的凹凸。 凹凸的形状不限于具有曲线的形状，也可以是矩形波形或三角波形等具有直线的形状。 突起和凹陷允许外部体在弯曲部分的内侧容易地收缩并且容易地在弯曲部分的外侧被拉伸。

    ELECTRODE MATERIAL FOR POWER STORAGE DEVICE, ELECTRODE FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE
    59.
    发明申请
    ELECTRODE MATERIAL FOR POWER STORAGE DEVICE, ELECTRODE FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE 审中-公开
    蓄电装置用电极材料，蓄电装置用电极及蓄电装置

    公开(公告)号：US20140087251A1

    公开(公告)日：2014-03-27

    申请号：US14029853

    申请日：2013-09-18

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Minoru TAKAHASHI ,  Ryota Tajima ,  Kazutaka Kuriki

    IPC: H01M4/62

    CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052

    Abstract: Irreversible capacity which causes a decrease in the initial capacity of a power storage device is reduced and the electrochemical decomposition of an electrolytic solution is suppressed. The decomposition reaction of an electrolytic solution as a side reaction of a power storage device is reduced or suppressed to improve the cycle performance of the power storage device. An electrode material for a power storage device includes active material particles and coating films covering part of surfaces of the active material particles. Carrier ions used for the power storage device can pass through the coating film. The product of the electric resistivity and the thickness of the coating film at 25° C. is greater than or equal to 20 Ωm·m.

    Abstract translation: 导致蓄电装置的初始容量降低的不可逆容量降低，电解液的电化学分解受到抑制。 作为蓄电装置的副反应的电解液的分解反应减少或抑制，以提高蓄电装置的循环性能。 用于蓄电装置的电极材料包括活性材料颗粒和覆盖活性材料颗粒表面的一部分的涂膜。 用于蓄电装置的载体离子可以通过涂膜。 25℃时的电阻率和涂膜厚度的乘积大于等于20Ω·m·m。

    POWER STORAGE UNIT AND SOLAR POWER GENERATION UNIT
    60.
    发明申请
    POWER STORAGE UNIT AND SOLAR POWER GENERATION UNIT 有权
    电力存储单元和太阳能发电机组

    公开(公告)号：US20140004393A1

    公开(公告)日：2014-01-02

    申请号：US13923431

    申请日：2013-06-21

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Minoru TAKAHASHI ,  Shunpei Yamazaki ,  Masaaki Hiroki ,  Kei Takahashi ,  Junpei Momo

    IPC: H01M10/50

    CPC classification number: H01M10/6571 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/443 ,  H01M10/465 ,  H01M10/486 ,  H01M10/615 ,  H01M10/63 ,  H01M10/637 ,  H02J7/007 ,  H02J7/35 ,  H02S10/20 ,  Y02E60/122

    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

    Abstract translation: 公开了一种可在宽温度范围内安全工作的蓄电单元。 蓄电单元包括：蓄电装置; 用于加热蓄电装置的加热器; 用于感测蓄电装置的温度的温度传感器; 以及控制电路，其被配置为当其存储温度低于第一温度或高于第二温度时禁止蓄电装置的充电。 第一温度的例子是允许在蓄电装置的负极上形成枝晶的温度，而第二温度的例子是由负极活性表面上形成的钝化膜分解的温度 材料。

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