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    ELECTRODE, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE
    65.
    发明申请
    ELECTRODE, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE 有权
    电极，电力存储装置和电子装置

    公开(公告)号：US20150207148A1

    公开(公告)日：2015-07-23

    申请号：US14598344

    申请日：2015-01-16

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Kai KIMURA ,  Kazutaka KURIKI ,  Teppei OGUNI ,  Aya UCHIDA

    IPC: H01M4/62 ,  H01G11/58 ,  H01G11/42 ,  H01M4/583 ,  H01G11/28

    CPC classification number: H01M4/622 ,  H01G11/24 ,  H01G11/26 ,  H01G11/28 ,  H01G11/38 ,  H01M4/13 ,  H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/446 ,  H01M2004/021 ,  H01M2010/4292 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

    Abstract: A power storage device with high capacity or high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode includes an active material, a first binder, and a second binder. The specific surface area of the active material is S [m2/g]. The weight of the active material, the weight of the first binder, and the weight of the second binder are a, b, and c, respectively. The solution of {(b+c)/(a+b+c)}×100÷S is 0.3 or more. The electrode includes a first film in contact with the active material. The first film preferably includes a region in contact with the active material. The first film preferably includes a region with a thickness of 2 nm or more and 20 nm or less. The first film contains a water-soluble polymer.

    Abstract translation: 提供具有高容量或高能量密度的蓄电装置。 提供了高度可靠的蓄电装置。 提供了一种长寿命蓄电装置。 电极包括活性材料，第一粘合剂和第二粘合剂。 活性物质的比表面积为S [m2 / g]。 活性物质的重量，第一粘合剂的重量和第二粘合剂的重量分别为a，b和c。 {（b + c）/（a + b + c）}×100÷S的解为0.3以上。 电极包括与活性材料接触的第一膜。 第一膜优选包括与活性物质接触的区域。 第一膜优选包括厚度为2nm以上且20nm以下的区域。 第一层膜含有水溶性聚合物。

    POWER STORAGE DEVICE ELECTRODE, METHOD FOR MANUFACTURING THE SAME, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE
    66.
    发明申请
    POWER STORAGE DEVICE ELECTRODE, METHOD FOR MANUFACTURING THE SAME, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE 审中-公开
    蓄电装置电极，其制造方法，蓄电装置及电子装置

    公开(公告)号：US20150111101A1

    公开(公告)日：2015-04-23

    申请号：US14517994

    申请日：2014-10-20

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Tatsuya IKENUMA ,  Kazutaka KURIKI

    IPC: H01M4/13 ,  H01M10/058 ,  H01M4/139 ,  H01M10/052 ,  H01M4/04

    CPC classification number: H01M4/13 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/366 ,  H01M4/622 ,  H01M4/625 ,  H01M10/052 ,  H01M10/4235

    Abstract: To provide a highly reliable power storage device. To provide a long-life power storage device. To provide a power storage device electrode having high adhesion with a current collector. To reduce or inhibit electrochemical decomposition of an electrolytic solution or the like on a surface of an electrode. The power storage device electrode includes a current collector and a second electrode layer provided over the current collector and including a second binder and an active material. A first electrode layer including a first binder and conductive particles is provided between the current collector and the second electrode layer. At least part of a surface of the active material is provided with a coating film, and the coating film is porous.

    Abstract translation: 提供高可靠性的蓄电装置。 提供长寿命蓄电装置。 提供与集电体具有高粘合力的蓄电装置电极。 为了减少或抑制在电极表面上的电解液等的电化学分解。 蓄电装置电极包括集电体和设置在集电体上方的第二电极层，并且包括第二粘合剂和活性物质。 在集电体和第二电极层之间设置包括第一粘合剂和导电粒子的第一电极层。 活性物质的表面的至少一部分设置有涂膜，并且涂膜是多孔的。

    SECONDARY BATTERY
    67.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20250167359A1

    公开(公告)日：2025-05-22

    申请号：US18838429

    申请日：2023-02-03

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Yosiharu ASADA ,  Kazutaka KURIKI ,  Yumiko YONEDA ,  Harushi ITO

    IPC: H01M50/178 ,  H01M10/0585 ,  H01M50/105 ,  H01M50/121

    Abstract: A secondary battery that can inhibit deterioration of an electrode is provided. A flexible secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, a separator, a first spacer, a second spacer, a positive electrode lead, a negative electrode lead, and an exterior body. The positive electrode includes a first portion coated with a positive electrode active material and a second portion where a positive electrode current collector is exposed. The negative electrode includes a third portion coated with a negative electrode active material and a fourth portion where a negative electrode current collector is exposed. The first portion, the third portion, and the separator overlap with each other in a stacked portion. The positive electrode lead is connected to the second portion in a position overlapping with the stacked portion. The negative electrode lead is connected to the fourth portion in a position overlapping with the stacked portion. The first spacer is in contact with the exterior body in a region surrounded by one end portion of the stacked portion, the positive electrode lead, and the negative electrode lead. The second spacer includes a region interposed between the stacked portion and the second portion, a region interposed between the stacked portion and the fourth portion, and a region connected to the first spacer.

    BATTERY
    68.
    发明申请
    BATTERY 有权

    公开(公告)号：US20250105291A1

    公开(公告)日：2025-03-27

    申请号：US18773889

    申请日：2024-07-16

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takuya ISHIMOTO ,  Shotaro MURATSUBAKI ,  Naoto OKUZAWA ,  Tatsuyoshi TAKAHASHI ,  Masayuki KIMURA ,  Kazutaka KURIKI

    IPC: H01M4/587 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

    Abstract: To provide a battery having excellent charge-discharge characteristics even in a low-temperature environment. The battery includes a positive electrode, a negative electrode, an electrolyte solution, and a separator. The electrolyte solution and the separator are included between the positive electrode and the negative electrode; the negative electrode includes a carbon material; and the electrolyte solution includes a lithium salt, a potassium salt, a fluorinated cyclic carbonate, a fluorinated linear carbonate, and at least one kind of anion. The carbon material includes graphite; the lithium salt includes LiPF6; the potassium salt includes KFSI; the fluorinated cyclic carbonate includes fluoroethylene carbonate; and the fluorinated linear carbonate includes methyl trifluoropropionate.

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