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    LITHIUM-ION SECONDARY BATTERY
    42.
    发明申请
    LITHIUM-ION SECONDARY BATTERY 审中-公开

    公开(公告)号：US20170133660A1

    公开(公告)日：2017-05-11

    申请号：US15127290

    申请日：2015-03-12

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Naoki KURIHARA ,  Junpei MOMO ,  Ryota TAJIMA

    IPC: H01M4/04 ,  H01M4/58 ,  H01M10/0568 ,  H01M10/0525 ,  H01M10/0569

    CPC classification number: H01M4/0445 ,  H01M2/14 ,  H01M4/13 ,  H01M4/582 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/30

    Abstract: A lithium-ion secondary battery with no negative electrode active material is provided. One embodiment of the present invention is a lithium-ion secondary battery including a positive electrode, a negative electrode, an electrolyte solution, and a separator between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector which includes a region in direct contact with at least one of the electrolyte solution and the separator. The electrolyte solution contains fluorine. The negative electrode current collector has a function of making a deposit containing lithium to be deposited on a surface in charging. Furthermore, a spacer may be provided between the separator and the negative electrode. The electrolyte solution may contain an organic compound containing fluorine. Supply of fluorine from the electrolyte solution to lithium deposited on the surface of the negative electrode can suppress deposition of lithium dendrites (whiskers) in further deposition.

    SECONDARY BATTERY AND ELECTRONIC DEVICE INCLUDING THE SAME
    44.
    发明申请
    SECONDARY BATTERY AND ELECTRONIC DEVICE INCLUDING THE SAME 审中-公开
    二次电池和包括该电池的电子设备

    公开(公告)号：US20160013469A1

    公开(公告)日：2016-01-14

    申请号：US14751443

    申请日：2015-06-26

    Applicant: Semiconductor Energy Laboratory Co., LTD.

    Inventor： Ryota TAJIMA ,  Yuugo GOTO ,  Yumiko YONEDA ,  Junya GOTO ,  Takuya MIWA ,  Masaaki HIROKI

    IPC: H01M4/13 ,  H01M4/70 ,  H01M10/0525 ,  H01M2/02 ,  H01M4/66

    CPC classification number: H01M4/13 ,  H01M2/0275 ,  H01M4/139 ,  H01M10/0525 ,  H01M2002/0205 ,  H01M2004/021 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

    Abstract: An electronic device having a novel structure, specifically, an electronic device having a novel structure that can be changed into various appearances is provided. Specifically, after an active material layer is formed on one or both surfaces of a current collector, the active material layer in a bent region is partly removed. The removed region of the active material layer can be in a linear shape, a dot shape, or a matrix shape, for example. After the active material layer is formed on one or both surfaces of the current collector, laser processing for removing part of the active material layer in an irradiation region is performed using laser light or the like. On the region where the surface of the current collector is exposed, the active material layer is not provided, and this region is a region that does not function as a battery. Owing to this region, a secondary battery with a wide movable region can be achieved.

    Abstract translation: 提供具有新颖结构的电子装置，具体地说，具有可以改变为各种外观的新颖结构的电子装置。 具体地说，在集电体的一个或两个表面上形成活性物质层之后，部分除去弯曲区域中的活性物质层。 活性物质层的去除区域例如可以是直线形状，点状或矩阵形状。 在集电体的一个或两个表面上形成活性物质层之后，使用激光等进行用于去除照射区域中的活性物质层的一部分的激光加工。 在集电体的表面暴露的区域，没有设置活性物质层，该区域是不能充当电池的区域。 由于该区域，可以实现具有宽移动区域的二次电池。

    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    46.
    发明申请
    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF 审中-公开
    二次电池及其制造方法

    公开(公告)号：US20140370379A1

    公开(公告)日：2014-12-18

    申请号：US14294481

    申请日：2014-06-03

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Nobuhiro INOUE ,  Junpei MOMO ,  Ryota TAJIMA ,  Naoki KURIHARA

    IPC: H01M4/36

    CPC classification number: H01M4/134 ,  H01M4/0416 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/623 ,  H01M4/80 ,  H01M10/052

    Abstract: To increase the capacity and energy density of a secondary battery by using a novel material as a material for a negative electrode in order to increase the amount of lithium ions transferred in charge and discharge. In the case where the negative electrode includes a current collector and a negative electrode active material layer, gallium is used as the negative electrode active material, and the negative electrode active material layer contains resin at 2 wt % or more, preferably 10 wt % or more, adhesion between the current collector and the negative electrode active material can be increased. This inhibits separation between the current collector and the negative electrode active material due repeated expansion and contraction, resulting in longer lifetime of the secondary battery.

    Abstract translation: 为了通过使用新型材料作为负极材料来增加二次电池的容量和能量密度，以增加在充电和放电中转移的锂离子的量。 在负极包括集电体和负极活性物质层的情况下，使用镓作为负极活性物质，负极活性物质层含有2重量％以上，优选为10重量％以上的树脂，或者 此外，可以提高集电体与负极活性物质的粘附性。 由于反复的膨胀和收缩，这抑制了集电体和负极活性物质的分离，导致二次电池的寿命更长。

    ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREOF
    48.
    发明申请
    ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREOF 有权

    公开(公告)号：US20250062349A1

    公开(公告)日：2025-02-20

    申请号：US18935745

    申请日：2024-11-04

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Ryota TAJIMA ,  Yumiko YONEDA ,  Yohei MOMMA ,  Shunpei YAMAZAKI

    IPC: H01M4/583 ,  H01M4/02 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

    Abstract: Use of silicon as a negative electrode active material particle causes a problem of expansion and contraction of the negative electrode active material particle due to charging and discharging. A negative electrode active material particle or a plurality of negative electrode active material particles are bound or fixed using a graphene compound to inhibit expansion and contraction of the negative electrode active material particle due to charging and discharging. In an all-solid-state secondary battery, an interface between a solid electrolyte and a negative electrode or an interface between the solid electrolyte and a positive electrode has the highest resistance. In order to reduce the interface resistance, at least the negative electrode active material particle is surrounded by a graphene compound to increase the conductivity. Alternatively, a positive electrode active material particle is surrounded by a graphene compound to increase the conductivity. Carrier ions, e.g., lithium ions, pass through a graphene compound, and thus the graphene compound does not hinder the transfer of lithium ions between the positive electrode and the negative electrode in charging or discharging.

    BATTERY
    49.
    发明申请
    BATTERY 有权

    公开(公告)号：US20240421445A1

    公开(公告)日：2024-12-19

    申请号：US18718903

    申请日：2022-12-02

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Tatsuyoshi TAKAHASHI ,  Ryota TAJIMA ,  Kazutaka KURIKI ,  Mayumi MIKAMI

    IPC: H01M50/533 ,  H01M50/105 ,  H01M50/178

    Abstract: To provide a battery in which electrode distortion is suppressed in connecting an electrode terminal and a current collector exposed portion. The battery includes an electrode, an exterior body surrounding the electrode, and a lead extending from the inside to the outside of the exterior body. The electrode includes a current collector and an active material layer. The electrode includes a first region where the active material layer is provided over the current collector, and a second region where the current collector is exposed. The second region of the electrode includes a third region where the current collector is folded. The lead is connected to the electrode in the third region.

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